Install Wireshark Network Packet Analyzer on Ubuntu 20.04 - Step by step guide ?

This article covers how to Install Wireshark on Ubuntu 20.04 LTS. In fact, Wireshark is a free & open source network packet analyzer tool. It helps to capture all packet getting in or out of a network interface and shows. It supports all platform such as Linux, Windows and Mac OS.


How to install wireshark on ubuntu ?

1. Update the System with the below command:

$ apt-get update

2. Install the wireshark on system with the below command:

$ apt-get install wireshark

Next, you will be prompted to configure Wireshark.

Select the Yes option.

3. Add user to the WireShark group with the below command:

$ usermod -aG wireshark $(whoami)

4. Reboot the system:

$ reboot

5. Finally, to start Wireshark from Terminal using command:

$ wireshark

Install and Configure WildFly (JBoss) on Debian 11 - Step by step guide ?

This article covers how to install and configure Wildfly with Nginx as a reverse proxy on Debian 11. In fact, WildFly implements the Java Enterprise Edition (Java EE). It is among the most common source Java server applications. It offers you an administration dashboard to manage single or multiple domains efficiently.

Migrate Centos 8 to AlmaLinux 8.3 - Step by step guide ?

This article covers the complete procedure for upgrading your CentOS 8 to AlmaLinux 8. In fact, AlmaLinux OS is an open-source, community-driven project that intends to fill the gap left by the demise of the CentOS stable release. With this system, You can rely on AlmaLinux OS to run you and your client's critical workloads.

APT Security: What Are Advanced Persistent Threats?

This article covers an overview about APTs. An advanced persistent threat (APT) is among the most dangerous cyber threats a company can face.

These attacks are hard to detect and allow an intruder to hide within a network for months. While hackers stay in the system, a company suffers regular data losses and outages without knowing the cause of problems.

While advanced persistent threats were once considered specifically dangerous to government institutions and large enterprises, the threat landscape is constantly shifting. Now, no organization is safe from these types of attacks. 

Because they are difficult to detect, and remain in systems for long periods of time and cause devastating losses to their targets, it's important to educate ourselves.

Knowing what APTs are, how to recognize common signs of their presence in a network, and of course, staying diligent and having a good detection and response plan are essential in protecting any organization from this silent threat. 


What is difference between APTs and malware?

Most malware executes a quick damaging attack, but APTs take a different, more strategic and stealthy approach. 

The attackers come in through traditional malware like Trojans or phishing, but then they cover their tracks as they secretly move around and plant their attack software throughout the network.


Phases of APT attack:

A successful APT attack can be broken down into three stages: 

1. Network infiltration.

2. The expansion of the attacker's presence.

3. The extraction of amassed data—all without being detected.

Install Docker On Ubuntu 18.04

This article will guide you on the process to successfully install the latest version of the #Docker engine and #Docker-Compose on an #Ubuntu server (version 18 and up).

Install Zabbix agent on CentOS

This guide will show you the steps to install zabbix agent on your CentOS server.

Windows Error 0x8004230F

This article will guide you on the steps to fix Windows Error 0x8004230F when creating System Restore point in Windows 10.

Tips to fix "Error 633: The modem or other connecting device is already in use" in Windows 10?

This article will guide you on the different methods to resolve VPN Error 633 in your Windows 10 computer which occurs while trying to connect to the internet.

Pluggable.php File Errors in WordPress – Fix it Now ?

This article covers methods to fix Pluggable.php File Errors in WordPress. Basically, this WordPress error triggers when we add a code snippet on our site or activate a new plugin.

This means that Pluggable.php file errors takes place as a result of a poorly coded theme or plugin. It could also be a result of code errors in your WP files. 


The first option when troubleshooting the Warning: cannot modify header information pluggable.php error is to manually edit the faulty file. You are already supplied with the necessary information to locate the problem in the error message (remember, it's the first file in the message). 

All you need to do is open up this file, either through an FTP client like FileZilla, or through File Manager.

Make sure to pay special attention to the starting and ending PHP tags. 

There should not be spaces before or after the <?php tag, as well as the ?> tag. 

Also, the last line of code should not be followed with a blank line or extra space.

NRPE Command Plugin Not Defined - How to fix it ?

This article covers methods to resolve 'NRPE Command Plugin Not Defined' for our customers.

This error is very straight forward. Usually this is caused by a mismatch between the command name declared in Nagios XI to be check through NRPE and the actual command name of the command directive in the remote host's nrpe.cfg file.

This problem will occur in versions of check_nrpe before v3. 

What is happening here is that the initial -c check_users is being overwritten by the -a -w 5 -c 10, as check_nrpe thinks the -c 10 argument is the command argument, not one of the -a arguments.

Install PHP 8 on Ubuntu 20.04 or 18.04 - Step by Step Process ?

This article covers steps to install PHP 8 on Ubuntu. PHP is arguably one of the most widely used server-side programming languages. It's the language of choice when developing dynamic and responsive websites. Basically, popular CM platforms such as WordPress, Drupal, and Magento are based on PHP.


To Install PHP as Apache Module

Run the commands:

$ sudo apt update
$ sudo apt install php8.0 libapache2-mod-php8.0

Once the packages are installed, restart Apache for the PHP module to get loaded:

$ sudo systemctl restart apache2


To Configure Apache with PHP-FPM

Php-FPM is a FastCGI process manager for PHP. 

1. Run the following command to install the necessary packages:

$ sudo apt update
$ sudo apt install php8.0-fpm libapache2-mod-fcgid

2. By default PHP-FPM is not enabled in Apache. 

To enable it, run:

$ sudo a2enmod proxy_fcgi setenvif
$ sudo a2enconf php8.0-fpm

3. To activate the changes, restart Apache:

$ systemctl restart apache2 


To install PHP 8.0 with Nginx

Nginx doesn't have built-in support for processing PHP files. We'll use PHP-FPM ("fastCGI process manager") to handle the PHP files.

Run the following commands to install PHP and PHP FPM packages:

$ sudo apt update
$ sudo apt install php8.0-fpm

Once the installation is completed, the FPM service will start automatically. 

To check the status of the service, run

$ systemctl status php8.0-fpm

Do not forget to restart the Nginx service so that the new configuration takes effect:

$ sudo systemctl restart nginx

Install PHP 8 on Debian 10 / Debian 9 - Step by Step Process ?

This article covers how to install PHP 8 on any Linux distribution.


To install Apache with PHP 8 module:

$ sudo apt install apache2 libapache2-mod-php8.0 

After successful installation, restart Apache service to reload newly installed modules:

$ sudo systemctl restart apache2 


To check loaded PHP modules use the command:

$ php -m

Set-ADUser Modify Active Directory Users with PowerShell - Do it now ?

This article covers how to use Set-ADUser Modify Active Directory Users with PowerShell.

Basically, the Set-ADUser cmdlet is part of the Active Directory module for Windows PowerShell.


The Identity parameter specifies the Active Directory user to modify. 

You can identify a user by its distinguished name, GUID, security identifier (SID), or Security Account Manager (SAM) account name. 

You can also set the Identity parameter to an object variable such as $<localUserObject>, or you can pass an object through the pipeline to the Identity parameter.

Plesk error FPM initialization failed - Fix it Now ?

This article covers methods to fix Plesk error, FPM initialization failed.

Basically, the error "FPM initialization failed" triggers in Plesk mainly in different formats. The is as a result of Incorrect PHP configuration file was generated during subdomain creation via XML API.


To fix this Plesk error:

i. Log in to Plesk server via SSH.

ii. Remove the excessive configuration file:

rm -f  /etc/php-fpm.d/subdomain.example.com.conf

DirectAdmin PhpMyAdmin error 500 - Fix it Now ?

This article covers methods to resolve DirectAdmin PhpMyAdmin error 500. This error happens as a result of a number of reasons that include PHP settings, modsecurity rules and so on.


To resolve this error, In the library is /usr/share/phpmyadmin/libraries/sql.lib.php,

You need to modify the file:

From && ($analyzed_sql_results['select_expr'][0] == '*')))

to && ($analyzed_sql_results['select_expr'][0] == '*'))

PrestaShop back office error 500 or blank page - Fix it Now ?

This article covers methods to resolve PrestaShop back office error 500.

The error happens when the Back-office is accessed only from Debug mode activated or in production mode activated. The characteristic of this error is that it only occurs in one of the modes and not in both.

Also, this is an error that is occurring ONLY IN PRESTASHOP STORES VERSION 1.7, and that makes it impossible for us to enter the Back-office, showing an error 500 or the page goes blank. 

That's why we call it a critical mistake, for leaving the store inoperative.


To fix a HTTP 500 error on PrestaShop online store website:

You can activate your web host's FTP or CPanel error reports in your PrestaShop shop.

1.  From PrestaShop v1.4 to v1.5.2

i. Open config/config.inc.php

ii. On line 29, you will find this line: @ini_set('display_errors','off');

iii. Replace it with: @ini_set('display_errors','on');


2. PrestaShop v1.5.3 and later versions (including 1.6 and 1.7)

i. Open config/defines.inc.php

ii. On line 28, you will find this line: define('_PS_MODE_DEV_', false);

iii. Replace it with: define('_PS_MODE_DEV_', true);

Once error reports from the FTP or CPanel are activated, you can browse your store's front or back office to find out what the problem is.


More about Server error 500:

Error 500 means Internal server Error. Whenever a 500 error occurs, the task to return information by the server to the web browser will stop. 

Therefore, as we mentioned above, this is a critical error that would leave the website inoperative.

The 500 errors, as we noted above, are internal server errors and their origin may be in a programming code error on any item that is included and related to the request for information returned by the server to the web browser. 

Therefore, not all 500 errors come from the same source.

Prestashop parse error – How to fix the syntax error ?

This article covers ways to resolve Prestashop parse error.

Basically, Prestashop parse error happens when we install Prestashop 1.7 or above or accessing the admin panel of the store.


To fix this error:

1. You can start with emptying your cache by deleting the /var/cache directory.

If that doesn't work copy lines 28-30 from another shop and save it.

2. Also you can try to remove the following:

# php -- BEGIN cPanel-generated handler, do not edit
# Set the “ea-php72” package as the default “PHP” programming language.
<IfModule mime_module>
  AddHandler application/x-httpd-ea-php72 .php .php7 .phtml
</IfModule>
# php -- END cPanel-generated handler, do not edit

From end of .htaccess. 

Just to be sure if that is not source of issues.

Cloudflare 502 error - Fix it Now ?

This article covers methods to resolve Cloudflare 502 error. Basically, the Cloudflare 502 error triggers when the origin web server responds with a standard HTTP 502 bad gateway or 504 gateway timeout error. 

This happens due to firewall restrictions and server resource issues.


Cause of 502 Bad Gateway Errors:

1. Domain name not resolvable

The domain name is not pointing to the correct IP or it does not point to any IP this problem may happen. Also, DNS propagation could take some time to make changes in DNS setting. It may take 24 to 48 hours to make reflect which is dependent upon the TTL defined per record on the DNS.

2. server down

The origin server is not reachable, this may due to the server is down for some reason or there is no communication to the server given.

3. Firewall blocks

A firewall interrupts the communication between the edge servers and the origin server. This may be caused by security plugins of your CMS.

As a part of DDOS protection and mitigation process or due to some strict firewall rules servers can be blocked from accessing the original server.

Nagios error Unable To Login Using Two Factor Authentication

This article covers how to resolve Two Factor Authentication error in Nagios. 


To Reset nagiosadmin account Password:

1. Open an SSH or direct console session to your Nagios XI host and execute the following command:

/usr/local/nagiosxi/scripts/reset_nagiosadmin_password.php --password=newpassword

Note: If you would like to use special characters in your password, you should escape them with "\".

For example, if you want to set your new password to be "$new password#", then you can run:

/usr/local/nagiosxi/scripts/reset_nagiosadmin_password.php --password=\$new\ password\#

WordPress error "Sorry this file type is not permitted for security reasons" - Fix it Now ?

This article covers methods to resolve WordPress error "Sorry this file type is not permitted for security reasons". Basically, "Sorry this file type is not permitted for security reasons" in WordPress occurs when we try to upload a document to the WordPress library.

As we explained above, WordPress default configuration limits the types of files that you can upload to your site for security reasons.


To Fix "Sorry, This File Type Is Not Permitted for Security Reasons" Error in WordPress, Try to Use the Free WP Extra File Types Plugin:

1. If you'd prefer not to edit your wp-config.php file and/or you want more control over exactly which file types can be uploaded to your site, you can use the free WP Extra File Types plugin at WordPress.org

2. Once you install and activate the plugin, go to Settings → Extra File Types in your WordPress dashboard.

3. There, you'll see a lengthy list of file types. Check the box next to the file type(s) that you want to be able to upload and then click Save Changes at the bottom.

4. If you don't see the file type that you'd like to upload on the list, you can also add your own custom file types at the bottom of the plugin's settings list.

SNMP MIB Upload Problems in Nagios – Fix it Now ?

This article covers Nagios SNMP MIB Upload Problems.

This issue happens while uploading SNMP MIB files and it could be as a result of insufficient permissions on the SNMP MIB files.


Execute the following commands to reset the permissions and ownership on the Nagios SNMP MIB files:

# chmod -R ug+rw /usr/share/snmp/mibs
# chown -R root:nagios /usr/share/snmp/mibs

After executing those commands you should be able to upload the MIB file that previously did not work.

Reset Upgrade Status In Nagios Web Interface - How to Perform it ?

This article covers how to Reset Upgrade Status In Nagios Web Interface.

When upgrading Nagios XI using the web interface the upgrade progress may stall with the message "Upgrade in progress". 

Sometimes you will need to clear this message manually due to unforeseen circumstances, this guide explains how to clear the message.


To Reset Upgrade Status in Nagios:

The following command will reset the upgrade status on Nagios XI (using the default username and password listed above):

For MySQL/MariaDB:

mysql -u'nagiosxi' -p'n@gweb' nagiosxi -e "update xi_commands set status_code = '2' where command = '1120';"

Nagios mysql_error out of range value for column - Fix it now ?

This article covers Nagios error, mysql_error out of range value for column which is evident in the /var/log/messages file on the Nagios XI server.

To resolve this issue you will need to define the SQL Mode in the MySQL / MariaDB my.cnf configuration file:

1. Locate the [mysqld] section and check to see if there is an sql_mode already defined:

[mysqld]
# Recommended in standard MySQL setup
sql_mode=NO_ENGINE_SUBSTITUTION,STRICT_TRANS_TABLES

2. If the sql_mode= line already exists you will need to replace it with the following. 

If the line does not exist you will need to add the following line:

[mysqld]
sql_mode=""

Prestashop error "an error occurred while sending the message" - Fix it Now ?

This article covers methods to fix Prestashop error "an error occurred while sending the message".

This error happens when the theme that we use does not adapt to the latest version of Prestashop.

To resolve this error, you can try modifying the contact form file.

Add this before the submit button :

<style>
input[name=url] {
display: none !important;
}
</style>
<input type="text" name="url" value=""/>
<input type="hidden" name="token" value="{$token}" />

Plesk Webmail Server Not Found - Fix it Now ?

This article covers methods to resolve the Plesk error "Webmail Server Not Found" which can happen while opening webmail/domain in a browser or when we issue Let's Encrypt on the domain. The main reason for this error is that the Webmail / domain does not resolve correctly in global DNS system because Plesk server is not set up to manage DNS.

To use DNS with a Plesk server:
1. DNS Server should be installed in Plesk Installer.
2. Log into Plesk and find your Name Servers in Plesk > Domains > example.com > DNS Settings, take the "value" for the record type "NS".
3. Then, it is required to change Name Server for your domain at your domain registrar's account.

503 bad sequence of commands - Fix it now ?

This article covers methods to fix the email error, "503 bad sequence of commands" which happens as a result of a number of reasons.

To resolve SMTP response: 503 Bad sequence of commands, consider the following and also read the complete guide here.
The IP that should be 10.0.0.0 - whatever that is, look at that box, this is where the problem is likely to be.
Your internal domain is domain.com or domain.net etc.
You may also add a test email account and check if it works as expected. If this works, then this could be an issue with the email account or with the service provider.

PiP is not recognized as an internal or external command - Fix it Now ?

This article covers different methods to resolve PiP is not recognized as an internal or external command.

Basically, the error, "PiP is not recognized as an internal or external command" happens when we try to install Python packages via a Command Prompt window.
PiP is a recursive acronym for "Pip Installs Packages".

It's essentially a package management system used to install and manage software packages written in Python. Most users make use of PiP to install and manage Python packages found in the Python Package Index.

To add PIP to the PATH environment variable using the Windows GUI:

1. Press Windows key + R to open up a Run dialog box. Then, type "sysdm.cpl" and press Enter to open up the System Properties screen.
2. Inside the System Properties screen, go to the Advanced tab, then click on Environment Variables.
3. In the Environment Variables screen, go to System variables and click on Path to select it. Then with the Path selected, click the Edit… button.
4. In the Edit environment variable screen, click on New and add the path where the PiP installation is located. For Python 3.4, the default location is C:\Python34\Scripts.
5. Once the path is added, open a fresh CMD window and try to install a python package that comes with PiP.

You should no longer see the "pip is not recognized as an internal or external command" error.

WordPress issue "Add Media button not working" - Fix it Now ?

This article covers how to Fix WordPress Add Media Button Not Working.
The main reason behind this error is usually custom scripts not working correctly, plugins, or themes.
You can pinpoint the cause of your woes using your browser's Inspect -> Console.
The console tool highlights script errors that can help you to identify where the problem lies.

To fix this WordPress error:

1. That aside, start by deactivating all of your plugins.
2. Then check if the Add Media button is working.
3. If the button is working, then it is obvious one of your plugin is causing the script conflict.
4. Next, reactivate the plugins one by one, and check the Add Media button after each activation.
5. When you find the responsible plugin, contact the developer for help or find a replacement.
6. If the problem persists after deactivating all plugins, you need to ensure you've cleared your caches first and then test if your theme is the cause of the WordPress Add Media button not working.
7. Just activate a default WordPress theme such as Twenty Seventeen and then check if the problem is gone.
If the button works, the issue here is your theme.

Undefined index notice in Joomla - Fix it now ?

This article covers how to resolve Undefined index notice in Joomla. A notice, in PHP terms (PHP is the scripting language that powers Joomla), is more or less a complaint. For example, if you're using a deprecated function such as ereg_replace (by the way, we have had quite a few sites with the ereg_replace() is deprecated notice that we needed to fix) then PHP will complain with a notice.
A notice may also be displayed if you're trying to use questionable casting that PHP thinks will not return the result that you want (for example, if you try to forcefully cast an array into a string).

To fix this Joomla warning:

Change PHP's error reporting in the .htaccess file to hide all errors.
You can do that by adding the following code to your .htaccess file:

php_flag display_startup_errors on
php_flag display_errors on
php_flag html_errors on

The above code will ensure that no error whatsoever will be displayed on your website.

Note that if you have an Error Reporting setting in your configuration settings other than "Default", then this setting will override the error reporting defined in your .htaccess.
For example, if your Error Reporting is set to "Maximum", then the above code in your .htaccess file has no effect.


WordPress error "This site ahead contains harmful programs" - Fix it Now ?

This article covers WordPress error "This site ahead contains harmful programs".

Basically, the error, This site ahead contains harmful programs happens when Google finds any suspicious code.


It's risky for Google users to visit hacked websites because they could become targets of the hacker:
1. Hackers could steal their data or redirect them to phishing sites.
2. Hackers could trick them into downloading malware onto their devices.
3. Visitors may be subjected to viewing inappropriate malicious content and ads.

Search engines like Google constantly crawl the web for new sites and new content to index.
They use bots and algorithms to check a website's content is original and relevant.
They can also check which websites are using deceitful tactics such as keyword stuffing.


During this process, they can also detect if there's malicious code on your website.
If they do, they proceed to:

1. Blacklist your website immediately.
2. Display "Site Ahead Contains Harmful Programs" or "This site contains malware" warnings to visitors.
3. Depending on the risk posed by your site, it gives users an option to bypass their security warning and proceed to your site by clicking on 'details'.
Or they can choose to leave the site and go 'back to safety'.

Can't read from the source file or disk - Fix it Now ?

This article covers how to fix "can't read from the source file or disk" error.
Basically, this error triggers when trying to copy certain files to or from an external hard disk.
Many users have reported that they got "Can't read from the source file or disk" error message while copying, deleting or moving files from one location to another.

To fix Error Message: Can't read from the source file or disk:
1. Restart the PC
If you can't read from the source file or disk while copying in Windows 10, and this happens for the first time, try restarting the computer (do not turn off and on, just restart).
Rebooting helps the computer deal with such errors on its own and returns it to an adequate working state.
2. Check the file name
Changing the file name is justified when the file was created in one OS, and its use occurs in another. You may not be able to read from the source file or disk while deleting after using this file on the command line. If this is your situation, be sure to rename the file properly and restart the computer after that.
3. Try to open the file on another PC
Try to do the same as in method 2, but on another PC. Better yet, if it will be a completely different OS (for example, you have Windows installed, then look for a computer with a Mac, etc.).
This will help get rid of any conflicts between the file and the computer, which can happen quite often.
4. Use chkdsk to fix bad sectors
The free chkdsk utility usually handles such errors with ease.

The source file names are larger than is supported by the file system

This article covers methods to resolve Windows error "The source file names are larger than is supported by the file system". Most Windows users encounter this issue when trying to copy or delete a file on the computer and they may receive an error message saying Source Path Too Long with the explanation of the source file name(s) are larger than is supported by the file system.


This Windows error error happens mainly because one or more files that are kept in a series of subfolders that have long names, but Windows only allows 258 characters at most in the folder path subfolder.
This will prevent you from moving the files or folders that are saved in this folder.

To fix this windows error, try the following:

Delete the File/Folder by Bypassing the Recycle Bin
You know that when you delete files from your computer, these files will be first moved to the Recycle Bin and they will stay there until you delete them permanently.
i. Click on the file or folder that is bothered by the Source Path Too Long error.
ii. Press the SHIFT and Delete buttons at the same time to permanently delete the file or folder.

"Are you sure you want to do this" error in WordPress - Fix it Now ?

This article covers methods to fix 'Are you sure you want to do this' error in WordPress for our customers.

One of the most common solutions is to revert your website to an older backup before the error occurred. If you update your backup regularly, it is one of the most powerful tools to use against errors.
If you do not update regularly, the backup is close to worthless because it is missing your regular content updates and website changes.

To fix "Are You Sure You Want to Do This" Error in WordPress:

1. You will not need any additional plugins to solve this issue and in fact, a plugin is likely causing the issue. The error is very simple to track but can become quite tedious if you have a lot of plugins and themes installed. The process includes disabling your themes and plugins while checking to see if the error is fixed. If you have a lot of plugins, this process may take a while. Deactivating the plugins will not be enough because they can still cause a problem. This is why it is recommended to uninstall a plugin if you are not using it.
2. Log into the cPanel and click on the File Manager. Click on the public-html directory and locate the wp-content folder. This folder contains all of the content on your website. Locate the plugins folder and right-click it.
Select the Rename option and rename it to "plugins off" or something similar.

Install Bcrypt in Docker and resolve related errors

This article covers how to install Bcrypt in Docker and fix relating Docker errors.

To fix bcrypt error on Docker:

The error looks like this,

internal/modules/cjs/loader.js:807
app_1 | return process.dlopen(module, path.toNamespacedPath(filename));

To resolve, simply Add the following lines of code to the start.sh file,

#!/usr/bin/env bash

# install new dependencies if any
npm install
# uninstall the current bcrypt modules
npm uninstall bcrypt
# install the bcrypt modules for the machine
npm install bcrypt
echo "Starting API server"
npm start

Here,

i. npm uninstall bcrypt would remove bcrypt modules for the other operating system.
ii. npm install bcrypt would install for the current machine that the app would be running on.

WordPress error Failed to Load Resource - Fix it Now ?

This article covers how to resolve the WordPress error Failed to load resource in WordPress as a result of issues in WordPress URL settings.

To fix this WordPress error:

1. Replace The Missing Resource

The missing resource is an image in one of your blog posts or page, then try to look for it in the media library.

If you are able to see the media library, then try to add again by editing the post or page.

2. Replace theme or plugin files

In case, if the failed resource is a WordPress plugin or theme file, then the easiest way to replace it is by reinstalling the plugin or theme.

First, you need to deactivate your current WordPress theme.

All you have to do is visit the Appearance » Themes page.

NRPE: No Output Returned From Plugin - How to fix this Nagios error ?

This article covers how to resolve Nagios error, NRPE: No Output Returned From Plugin. This error happens as a result of Permissions or Missing plugin.

To fix this Nagios error:

1. The most common solution is to check the permissions on the check_nrpe binary on the Nagios XI server:

ls -la /usr/local/nagios/libexec/check_nrpe

The expected permissions should resemble:

-rwxrwxr-x. 1 nagios nagios  75444 Nov 21 01:38 check_nrpe

2. If not, change ownership to user/group "nagios" and fix up the permissions:

$ chown nagios:nagios /usr/local/nagios/libexec/check_nrpe
$ chmod u+rwx /usr/local/nagios/libexec/check_nrpe
$ chmod u+rx /usr/local/nagios/libexec/check_nrpe

Googlebot cannot access CSS and JS files – Resolve crawl errors ?

This guide covers website crawl errors, Googlebot cannot access CSS and JS files. Google bot and other search spiders will visit the robots.txt file of your website immediately after they hit the htaccess file.

Htaccess has rules to block ip addresses, redirect URLs, enable gzip compression, etc. The robots.txt will have a set of rules for the search engines too. 

They are the reason you received "Googlebot Cannot Access CSS and JS files". 

Robots.txt has few lines that will either block or allow crawling of files and directories. Google has started penalizing websites that block the crawling of js and css files.

The JavaScript and cascading style sheets are responsible for rendering your website and they handle forms, fire events, and so on.

If the JS is blocked, Google bot will not be able to crawl the code and it will consider the code as a spam or violation of link schemes. 

The same logic applies for the CSS files.


To resolve "Googlebot Cannot Access CSS And JS Files" Warning:

1. You need to remove following line: Disallow: /wp-includes/

Depending upon how you have configured your robots.txt file, it will fix most of the warnings. 

You will most likely see that your site has disallowed access to some WordPress directories like this:

User-agent: *

Disallow: /wp-admin/
Disallow: /wp-includes/
Disallow: /wp-content/plugins/
Disallow: /wp-content/themes/

2. You can override this in robots.txt by allowing access to blocked folders:

User-agent: *
Allow: /wp-includes/js/

Set Up Amazon WorkSpaces - Step by Step Process

This article covers how to set up Amazon WorkSpaces for our customers. Amazon WorkSpaces is a managed, secure Desktop-as-a-Service (DaaS) solution. With Amazon WorkSpaces, your users get a fast, responsive desktop of their choice that they can access anywhere, anytime, from any supported device.

With Amazon WorkSpaces, you can provision virtual, cloud-based Microsoft Windows or Amazon Linux desktops for your users, known as WorkSpaces.

Generally, Workspaces are meant to reduce clutter and make the desktop easier to navigate. Workspaces can be used to organize your work. For example, you could have all your communication windows, such as e-mail and your chat program, on one workspace, and the work you are doing on a different workspace.

The Amazon WorkSpaces Free Tier provides two Standard bundle WorkSpaces with 80 GB Root and 50 GB User volumes, running in AutoStop mode, for up to 40 hours of combined use per month, for two calendar months, from the time you create your first WorkSpace.


Key Features of Amazon WorkSpaces:

1. The end-users can access the documents, applications, and resources using devices of their choice such as laptops, iPad, Kindle.

2. Network Health Check-Up verifies if the network and Internet connections are working. Also, checks if  WorkSpaces and their associated registration services are accessible, and checks if port 4172 is open for UDP and TCP access or not.

3. Client Reconnect feature allows the users to access their WorkSpace without entering their credentials every time when they disconnect.

4. Auto Resume Session feature allows the client to resume a session that gets disconnected due to any reason in network connectivity within 20 minutes by default. This can be extended for 4 hours. However, the users can disable this feature any time in the group policy section.

5. Console Search feature allows Administrators to search for WorkSpaces by their user name, bundle type, or directory.


Some AWS Limitations:

1. AWS service limits. AWS service limits are set by the platform.

2. Technology limitations. An exceptional characteristic of this limiting factor is that it can be applied to all Cloud services, not just on AWS.

3. Lack of relevant knowledge by your team.

4. Technical support fee.

5. General Cloud Computing issues.

Setup and Configure tmpmail - Step by Step Process

This article covers method to Setup and Configure tmpmail.

Basically, tmpmail is a handy utility for CLI warriors within the command line. 

By default, email addresses are created at random unless a specific email address follows the --generate flag.

Currently, w3m renders the emails in an HTML format within the terminal. If preferred, a user can use a GUI or text-based browser to view the email by passing the --browser flag followed by the command needed to launch the web browser of your choice.

TEMP-MAIL does not store your IP-address. This means you are reliably protected from all unauthorized actions that may endanger your information and compromise your privacy. All emails and data temporarily stored on our service are permanently deleted after the time expired.


How to install tmpmail ?

1. To install tmpmail, we can use the wget command or curl command to download the script from GitHub. 

Next, open a terminal and then copy or type in the following command:

# wget https://raw.githubusercontent.com/sdushantha/tmpmail/master/tmpmail

2. Now, run the chmod command against the script to modify the permissions, so the file is executable.

[root@host2 ~]# chmod -v +x tmpmail

3. Next, we will move the file to a location somewhere in our $PATH. Use the following command to accomplish this.

# mv tmpmail /bin/
# which tmpmail
/usr/bin/tmpmail


To Generate a New tmpmail Address:

To create a new temporary email address, run the following command.

# tmpmail --generate

DirectAdmin Email page failed to load - Fix it Now

This article covers how to fix the issue regarding the email page not loading in the DirectAdmin panel.


To fix this DirectAdmin error:

1. Edit DirectAdmin.conf

$ vi /usr/local/directadmin/conf/directadmin.conf

2. Add below line into the file to enable disk usage cache:

pop_disk_usage_cache=1

3. Edit /etc/cron.d/directadmin_cron

$ vi /etc/cron.d/directadmin_cron

and add below line

*/15 * * * * root echo "action=cache&type=popquota" >> /usr/local/directadmin/data/task.queue

4. Restart crond service

$ service crond restart

Nagios No lock file found - Fix this error now

This article covers different methods to resolve the error, Nagios: No lock file found.  Basically, "No lock file found in /usr/local/nagios/var/nagios.lock" means that the service isn't running.

To fix this Nagios error:
Execute the command:

$ /usr/local/nagios/bin/nagios -d /usr/local/nagios/etc/nagios.cfg

Running the command above simply starts the nagios daemon and points it to a specific config file.
The advantage to running this command manually over systemd is that when you run "service nagios start" this typically calls the /etc/rc.d/init.d/nagios script which contains a line with parametrized environment variables:

$NagiosBin -d $NagiosCfgFile

Because every system is different, not specifying either the bin nor config directories could lead to nagios breaking (stopping) when it tries to start using the default installation directory paths

Clear Solaris Service Maintenance Status in Nagios - Troubleshoot and Resolve

This article covers how to fix Clear Solaris Service Maintenance Status Nagios issue. Basically, When the Nagios Core service finds an invalid configuration, the core service will not start. 

To fix the problem you must fix the problem Nagios Core is complaining about.

This is normal behavior of Nagios Core, it is not specific to Solaris.

However on Solaris, after a service has failed to start several times, Solaris will put the service into what is called a Maintenance State. This state prevents a small problem from becoming a bigger problem. 

Even after fixing the problem Nagios Core is complaining about, you must also clear the maintenance state on the service before Solaris allows a service to be started again.

This means that the service is in a maintenance state, however there is not a lot of detail as to the cause of the issue except that the Start method failed repeatedly. 

It does however provide the name of a log file /var/svc/log/application-nagios:default.log.

Execute the following command to perform further troubleshooting:

tail -20 /var/svc/log/application-nagios:default.log


To Clear Maintenance State on Nagios:

1. Run the following command to clear the maintenance state:

$ svcadm clear nagios

2. Execute the following command to start Nagios:

$ svcadm enable nagios

3. Now check the state of the service:

$ svcs -xv nagios

Updating Windows VM Templates on VMWare with PowerShell - How to do it

This article covers how to update Windows VM Templates on VMWare. 

The update process of a VM template on VMWare consists of the following stages:

1. A template from the Content Library is converted to a virtual machine.;

2. After starting it, an administrator logs on, installs approved Windows updates using WSUS, updates the required software;

3. After the updates have been installed, the VM is restarted, then turned of and converted back to the template.

DirectAdmin error Headers and client library minor version mismatch

This article covers how to resolve DirectAdmin: Headers and client library minor version mismatch error. Basically, this error can come up even after MySQL update and PHP rebuild via custombuild.

To resolve this error:

Perform a cleanup in custombuild and rebuild PHP

$ cd /usr/local/DirectAdmin/custombuild

$ ./build clean

$ ./build php n


Alternatively you can set it like this:

cd /usr/local/directadmin/custombuild

./build set php5_ver 5.3

./build set mysql 5.1

./build update

./build clean

./build apache d

./build php d

./build mysql d


To rebuild zend:

cd /usr/local/directadmin/custombuild

./build zend

DirectAdmin User too large delete on background - Methods to resolve this error

This article covers method to fix the error, DirectAdmin: User too large delete on background. Basically, this error occurs when the sum of the disk usage of any user exceeds a certain threshold.

To prevent time-outs in your browser when deleting excessively large accounts, DirectAdmin will execute the deletion by adding the command to the background’s task.queue, instead of performing the execution on the foreground.


To fix DirectAdmin: User too large delete on background error, you can connect to the server through SSH using root access, then go to DirectAdmin's installed directory as below:

cd /usr/local/directadmin/conf/

Then edit the directadmin.conf file in the directory by running

vi directadmin.conf

If the variable "get_background_delete_size" value exists in the directadmin.conf file, it will be set to 10 GB by default (get_background_delete_size=10240). 

If the variable cannot be found in the file, simply add it in. 

You can modify the value of 10240 to define the value that you wish to set.

Amazon Redshift - Its features and how to set it up

This article covers an effective method to set up Amazon Redshift. Amazon Redshift is a fully managed, petabyte-scale data warehouse service in the cloud. This enables you to use your data to acquire new insights for your business and customers. The first step to create a data warehouse is to launch a set of nodes, called an Amazon Redshift cluster.

Amazon Redshift is a relational database management system (RDBMS), so it is compatible with other RDBMS applications. Amazon Redshift and PostgreSQL have a number of very important differences that you need to take into account as you design and develop your data warehouse applications.

Amazon Redshift is based on PostgreSQL.

Amazon Redshift is specifically designed for online analytic processing (OLAP) and business intelligence (BI) applications, which require complex queries against large datasets.


What is the difference between Amazon Redshift and Amazon Redshift Spectrum and Amazon Aurora?

Amazon Simple Storage Service (Amazon S3) is a service for storing objects, and Amazon Redshift Spectrum enables you to run Amazon Redshift SQL queries against exabytes of data in Amazon S3.

Both Amazon Redshift and Amazon RDS enable you to run traditional relational databases in the cloud while offloading database administration. 

Customers use Amazon RDS databases primarily for online-transaction processing (OLTP) workload while Redshift is used primarily for reporting and analytics.

Interworx vs cPanel - Which is Better

This article covers InterWorx and cPanel  and gives an idea of how to choose the best control panel for customers. Basically, many factors depends to choose the right panel like InterWorx and cPanel. 


InterWorx includes two main sections:

1.  NodeWorx (similar to WHM)

2. SiteWorx (the analog of cPanel)

NodeWorx is a system administrator interface to configuring, managing and monitoring your server. 

From the NodeWorx amin, you can securely manage multiple SiteWorx accounts.

SiteWorx is a separate control management account and website owner interface that provides access to the tools for managing your websites, email, and databases.


Differences between InterWorx and cPanel:

1. Unlike cPanel, with InterWorx, you can create multiple administrator accounts and provide them with the desired permissions. 

This is especially convenient if your clients have web developers or people who need to manage email only, for example. 

cPanel has only one administrative account, and no more additional accounts can be created.

2. InterWorx doesn't have complicated licensing options like cPanel. 

cPanel recently implemented an account-based pricing model that may have resulted in a substantial price increase. 

Whereas InterWorx lets you host multiple accounts on the server without increasing your license cost as it is licensed per server.

3. cPanel supports PostgreSQL, Mailman mailing lists, NodeJS, server-side Java, Ruby on Rails, and the DNSSEC protocol. 

InterWorx does not support those things at this time. Also, InterWorx does not support CloudLinux, only Linux and CentOS are supported.

4. InterWorx supports all of the same languages for NodeWorx as for SiteWorx. 

In addition, both NodeWorx and SiteWorx share a wide variety of supported themes. WHM only supports US English and one theme for now. cPanel has two themes.

Core Configuration Manager Displaying Issues in Nagios XI

This article covers how to resolve the issue with Nagios XI that stops displaying the core configuration manager or the components inside the core configuration manager.

If this is the case, When using Core Configuration Manager (CCM), the interface does not work as expected, it does not appear to display correctly and generally it feels like there is a bug. This issues is related to the web browsers implementation of JavaScript. If possible, use a browser that more closely implements the ECMAScript Language Specification.

A quick way to see if this is the problem is to see if you experience the same issue using another web browser.


To fix this Nagios configuration Problem:

1. In the event of the the Core Config Manager not visible or components missing from the page, this generally relates to a proxy and the following steps may resolve this issue:

pear config-set http_proxy http://proxy:port

2. Make sure to change proxy:port to match your proxy server, example:

pear config-set http_proxy http://192.168.44.20:8080

3. Then execute the following:

pear install HTML_Template_IT

 After performing these steps go back to CCM and see if it works.

Enable Built-in Administrator Account on Windows 10 - How to implement this

This article covers an easy way to activate the administrator account is from the command prompt with elevated privileges. Windows 10 includes a built-in Administrator account that, by default, is hidden and disabled for security reasons. Sometimes, you need to perform a bit of Windows management or troubleshooting or make changes to your account that requires administrator access.

Windows 10 administrator default password will not be required, alternatively you can enter password for local account and sign in.


To know if I have the built-in Administrator account in Windows 10:

1. Right-click the name (or icon, depending on the version Windows 10) of the current account, located at the top left part of the Start Menu, then click on Change account settings. 

2. The Settings window will pop up and under the name of the account if you see the word "Administrator" then it is an Administrator account.


To reset the built-in Administrator account in Windows 10:

1. Boot from Windows 10 bootable CD/DVD or USB.

2. When the install now screen shows up click on Repair your computer > Advanced Options >Troubleshoot > Command Prompt.

3. Once you can boot into the command prompt, type "net user administrator /active:yes".


To enable hidden administrator:

1. Go to Security Settings > Local Policies > Security Options. 

2. The policy Accounts: Administrator account status determines whether the local Administrator account is enabled or not. 

3. Check the "Security Setting" to see if it is disabled or enabled. 

4. Double-click on the policy and select "Enabled" to enable the account.

This App Has Been Blocked for Your Protection on Windows - Fix it now

This article covers methods to fix the 'This App Has Been Blocked for Your Protection on Windows' error. Windows Defender SmartScreen acts as a sort of guard dog while you use Windows 10.

It will block you from opening some apps if they come from an unknown place or are created by an unknown publisher. 

Some apps really are harmful and really will get you in a mess. Only go around the Windows 10 app block if you know for sure that the file is safe.


To unblock an app that is blocked by the administrator:

1. Locate the file, right-click it, and select "Properties" from the contextual menu. 

2. Now, find the "Security" section in the General tab and check the checkbox next to "Unblock" - this should mark the file as safe and let you install it. 

3. Click "Apply" to save the changes and try to launch the installation file again.


To Unblock Programs In Windows Defender Firewall:

1. Select the “Start” button, then type “Firewall“.

2. Select the “Windows Defender Firewall” option.

3. Choose the "Allow an app or feature through Windows Defender Firewall" option in the left pane.


To install a program that is blocked by administrator:

1. Disable Windows SmartScreen.

2. Execute the file via Command Prompt.

3. Install the app using the hidden administrator account.

4. Temporarily disable your antivirus program.

Steps to Run Program without Admin Privileges and to Bypass UAC Prompt

This article covers how to run a program without admin privileges. The trick to bypass UAC is to create a scheduled task (with highest privileges) for each program that you want to run, and then invoke the scheduled task item manually using schtasks.exe .

UAC helps keep your computer secure. If you reflexively disable UAC when setting up a computer, you should give it another try – UAC and the Windows software ecosystem have come a long way from when UAC was introduced with Windows Vista.


To  Eliminate UAC Prompts for Specific Applications:

1. In Task Scheduler, right-click "Task Scheduler Library" and select "New Folder" Name it whatever you would like.

2. Select the new folder and click "Create Task" (not "Create Basic Task")

3. Name the task something descriptive. ...

4. Under the Actions tab, select "Start a program" in the Action dropdown if it isn't already.


To bypass UAC administrator password:

1. Right-click Start button at left lower corner of PC, select Control Panel.

2. Click User Accounts and family Safety.

3. Click User Accounts.

4. Click Change your account type.

5. Enter Admin password and click Yes to continue.

6. Select Administrator as your new account type, and click Change Account Type.

Vital Command Line commands for Linux Admins with examples

This article covers a few Vital Command Line for Linux Admins. The Linux command line is a text interface to your computer. Allows users to execute commands by manually typing at the terminal, or has the ability to automatically execute commands which were programmed in “Shell Scripts”.


Common commands in Linux:

1. su command

The su command exists on most unix-like systems. It lets you run a command as another user, provided you know that user's password. When run with no user specified, su will default to the root account. The command to run must be passed using the -c option.


2. which command

which command in Linux is a command which is used to locate the executable file associated with the given command by searching it in the path environment variable. It has 3 return status as follows: 0 : If all specified commands are found and executable.


3. Who am I command line?

whoami command is used both in Unix Operating System and as well as in Windows Operating System. It is basically the concatenation of the strings “who”,”am”,”i” as whoami. It displays the username of the current user when this command is invoked. It is similar as running the id command with the options -un.


4. What does W command do in Linux?

w is a command-line utility that displays information about currently logged in users and what each user is doing. It also gives information about how long the system has been running, the current time, and the system load average.



Facts about the demand in Linux admins?

1. The job prospects for Linux System Administrator are favorable. 

2. According to the US Bureau of Labor Statistics (BLS), there is expected to be a growth of 6 percent from 2016 to 2026. 

3. Candidates who have a firm hold on cloud computing and other latest technologies have bright chances.

Configure software RAID on Linux using MDADM - Do it now

This article covers how to Configure software RAID on Linux using MDADM.


To Install a Software Raid Management Tool:

To install mdadm, run the installation command:

1. For CentOS/Red Hat (yum/dnf is used): $ yum install mdadm

2. For Ubuntu/Debian: $ apt-get install mdadm

3. SUSE: $ sudo zypper install mdadm

4. Arch Linux: $ sudo pacman -S mdadm


Terms related to Integrity of a RAID Array:

1. Version – the metadata version

2. Creation Time – the date and time of RAID creation

3. Raid Level – the level of a RAID array

4. Array Size – the size of the RAID disk space

5. Used Dev Size – the space size used by devices

6. Raid Device – the number of disks in the RAID

7. Total Devices – is the number of disks added to the RAID

8. State – is the current state (clean — it is OK)

9. Active Devices – number of active disks in the RAID

10. Working Devises – number of working disks in the RAID

11. Failed Devices – number of failed devices in the RAID

12. Spare Devices – number of spare disks in the RAID

13. Consistency Policy – is the parameter that sets the synchronization type after a failure, rsync is a full synchronization after RAID array recovery (bitmap, journal, ppl modes are available)

14. UUID – raid array identifier


To Recovering from a Disk Failure in RAID, Disk Replacement:

If one of the disks in a RAID failed or damaged, you may replace it with another one. First of all, find out if the disc is damaged and needs to be replaced.

# cat /proc/mdstat


To Add or Remove Disks to Software RAID on Linux:

1. If you need to remove the previously created mdadm RAID device, unmount it:

# umount /backup

2. Then run this command:

# mdadm -S /dev/md0

mdadm: stopped /dev/md0

3. After destroying the RAID array, it won’t detected as a separate disk device:

# mdadm -S /dev/md0

mdadm: error opening /dev/md0: No such file or directory

4. You can scan all connected drives and re-create a previously removed (failed) RAID device according to the metadata on physical drives. Run the following command:

# mdadm --assemble —scan


About Mdmonitor: RAID State Monitoring & Email Notifications:

The mdmonitor daemon can be used to monitor the status of the RAID. 

1. First, you must create the /etc/mdadm.conf file containing the current array configuration:

# mdadm –detail –scan > /etc/mdadm.conf

The mdadm.conf file is not created automatically. You must create and update it manually.

2. Add to the end of /etc/mdadm.conf the administrator email address to which you want to send notifications in case of any RAID problems:

MAILADDR raidadmin@woshub.com

3. Then restart mdmonitor service using systemctl:

# systemctl restart mdmonitor

Then the system will notify you by e-mail if there are any mdadm errors or faulty disks.

Create custom php ini in Litespeed Webserver - How to do it

This article covers how to Create custom php.ini in Litespeed Webserver. Basically, compared to the Apache web server, the Litespeed web server configuration may feel a bit complicated. In hosting environment with cPanel servers, it is necessary to edit the PHP variables for each domain or customer and this can be done using by creating a custom php.ini for each user's home directory. So the clients can change the PHP values according to their requirements.  

There should some steps need to be done on Litespeed admin panel on cPanel/WHM to enable custom php.ini and you can follow the below steps to enable it.


To Create Custom Php.Ini In A Litespeed Webserver:

1. Login into WHM.

2. Select Litespeed Web Server

3. Litespeed Configuration > Admin Console > Configuration > Server > External App > lsphp5

4. Under Environment section >> add “PHPRC=$VH_ROOT”

5. Under “suEXEC User ” section >> add the account username for which custom php.ini has to be enabled.

6. Under “suEXEC Group ” section >> add the group name of the same account.

7. Click save and return to Main >> Litespeed Web server

8. Under Quick Configuration of PHP suEXEC settings,>> Set Enable PHP suExec to yes.

9. After that put custom php.ini in the user’s home directory and check it using a phpinfo page.

SSH Servers Clients and Keys - More about it now

This article covers important information about SSH Servers, Clients and Keys. Use SSH keys for authentication when you are connecting to your server, or even between your servers.

They can greatly simplify and increase the security of your login process. 

When keys are implemented correctly they provide a secure, fast, and easy way of accessing your cloud server.


Turn off password authentication Linux:

With SSH key authentication configured and tested, you can disable password authentication for SSH all together to prevent brute-forcing. When logged in to your cloud server.

1. Open the SSH configuration file with the following command.

$ sudo nano /etc/ssh/sshd_config

2. Set the password authentication to no to disable clear text passwords.

PasswordAuthentication no

3. Check that public key authentication is enabled, just to be safe and not get locked out from your server. If you do find yourself unable to log in with SSH, you can always use the Web terminal control panel.

PubkeyAuthentication yes

Then save and exit the editor.

4. Restart the SSH service to apply the changes by using the command below.

$ sudo systemctl restart sshd

With that done your cloud server is now another step along towards security. 

Malicious attempts to connect to your server will results in authentication rejection, as plain passwords are not allowed, and brute-forcing an RSA key is practically impossible.

dhclient to persistently look for an IP address lease - Configure it Now

This article covers how to use dhclient command. Basically, Linux dhclient command can provide an IP lease until DHCP Server/Router grants one.

With this guide, you can easily configure Linux dhclient command to continuously requests an IP lease until one is granted by DHCP Server / Router.

Icons images and javascript files missing from frontend in Magento - Fix it now

This article covers methods to resolve Magento error related to with icons, images, and javascript files missing from frontend. Basically, icons, images, and javascript files might not appear if we use the wrong Magento update command to upgrade the version.


If you are in production mode, and are running setup:upgrade and you don't want regenerate static content because there is no need to, then you can use the following:

php bin/magento setup:upgrade --keep-generated

--keep-generated is an optional argument that does not update static view files. 

It should be used only in production mode. 

It should not be used in developer mode.


Solutions for the issue where stylesheets and images do not load after installing Magento ?

The following are possible solutions depending on the software you use and the cause of the problem:

If you are using the Apache web server, verify your server rewrites setting and your Magento server's base URL and try again. If you set up the Apache AllowOverride directive incorrectly, the static files are not served from the correct location.

If you are using the nginx web server, be sure to configure a virtual host file. The nginx virtual host file must meet the following criteria:

The include directive must point to the sample nginx configuration file in your Magento installation directory. For example:

include /var/www/html/magento2/nginx.conf.sample;

The server_name directive must match the base URL you specified when installing Magento. For example:

server_name ip_address;

If the Magento application is in production mode, try deploying static view files using the command magento setup:static-content:deploy.

Force DHCP Client to Renew IP Address - Perform it now

This article covers how to force DHCP client to renew IP address. You need to use Dynamic Host Configuration Protocol Client i.e., dhclient command. 

The client normally doesn't release the current lease as it is not required by the DHCP protocol. Some cable ISPs require their clients to notify the server if they wish to release an assigned IP address. 

The dhclient command, provides a means for configuring one or more network interfaces using the Dynamic Host Configuration Protocol, BOOTP protocol, or if these protocols fail, by statically assigning an address.


Linux renew ip command using dhcp:

The -r flag explicitly releases the current lease, and once the lease has been released, the client exits. 

For example, open terminal application and type the command:

$ sudo dhclient -r

Now obtain fresh IP address using DHCP on Linux:

$ sudo dhclient


To start DHCP client in Linux:

1. To start the DHCP service, type the following command: # /etc/init.d/dhcp start.

2. To stop the DHCP service, type the following command: # /etc/init.d/dhcp stop. 

The DHCP daemon stops until it is manually started again, or the system reboots.


How can I renew or release an IP in Linux for eth0?

To renew or release an IP address for the eth0 interface, enter:

$ sudo dhclient -r eth0

$ sudo dhclient eth0

In this example, I am renewing an IP address for my wireless interface:

sudo dhclient -v -r eth0

sudo dhclient -v eth0


Command to release/renew a DHCP IP address in Linux:

1. ip a - Get ip address and interface information on Linux

2. ip a s eth0 - Find the current ip address for the eth0 interface in Linux

3. dhclient -v -r eth0 - Force Linux to renew IP address using a DHCP for eth0 interface

4. systemctl restart network.service - Restart networking service and obtain a new IP address via DHCP on Ubuntu/Debian Linux

5. systemctl restart networking.service - Restart networking service and obtain a new IP address via DHCP on a CentOS/RHEL/Fedora Linux

6. nmcli con - Use NetworkManager to obtain info about Linux IP address and interfaces

7. nmcli con down id 'enp6s0' - Take down Linux interface enp6s0 and release IP address in Linux

8. nmcli con up id 'enp6s0' - Obtian a new IP address for Linux interface enp6s0 and release IP address using DHCP

Unable to add MySQL database in Plesk Customer Panel - Fix it now

This article covers how to fix issues that make it unable to add MySQL database in Plesk customer panel.


To resolve Cannot add MySQL database in Plesk Customer Panel:

1. Log in to Plesk and apply one of the following:

2. Enable Database server selection directive in Service Plans > Default > Permissions > Show more available permissions and press Update & Sync.

3. Switch MySQL default database server from None to localhost:3306 in Service Plans > Default > Hosting Parameters > Default Database Server and press Update & Sync.


Note:  it is also applicable to cases when Amazon RDS extension is installed. 

If it is needed to provide customer with the ability to select Amazon server, enable "database server selection" option.


How do I add a database to my Plesk Panel?

How to Create a New Database or Database User in the Plesk Control Panel

1. Log into your Control Panel.

2. Click on Databases.

3. Click on the Add New Database icon.

4. Next to Database Name enter the name you want to use.

For Type, choose either Microsoft SQL Server or MySQL (DNN uses the Microsoft SQL Server.).

Unable to add MS SQL database in Plesk - Fix it now

This article covers how to fix the error, Unable to add MS SQL database in Plesk.

Basically, the number of MS SQL databases is limited for the webspace, subscriptions, or reseller's plan.


In Web Admin Edition:

1. Log in to Plesk.

2. Go to Tools & Settings > License Management and check if Microsoft SQL Server support enabled or not:

a. If no, then it is required to purchase the MSSQL support first for the subscription.

MSSQL support is included in the Power Pack and Developer Pack.

b. If yes, then proceed to step 3.

3. Run the command below to get the current limit of MSSQL databases for the required webspace:

C:\> plesk bin subscription_settings --info example.com | findstr max_mssql_db

max_mssql_db 30 MS SQL databases

4. Increase the number of MSSQL databases for the required webspace (use the "-1" to set to the Unlimited value):

C:\> plesk bin subscription_settings -u example.com -max_mssql_db 100

plesk bin subscription_settings -u example.com -max_mssql_db -1


In Web Pro and Web Host Editions:

1. Log in to Plesk.

2. Go to Subscriptions > example.com > Account > Resources.

3. Find the MS SQL databases number.

a. If it reached its limit, increase it of the following ways:

Go to Subscriptions > example.com > Customize > Resources page and increase the MS SQL databases limit (changes will affect only this subscription).

Go to Subscriptions > example.com > Service Plan: Default > Resources page and increase the MS SQL databases limit (changes will affect all subscriptions assigned to this service plan).

b. If it is not reached the limit, then this limit is set on the reseller's level as also. Follow to the next step.

4. Go to Subscriptions > example.com > Subscriber: John Doe > Provider: Jane Doe.

5. Click the Change Plan button to increase the MS SQL databases number for all resellers assigned to this service plan.

Click the Customize button to increase the MS SQL databases number only for this reseller.

6. Find the MS SQL databases number and increase it to the required value.

Add MySQL database in Websitepanel and fix common errors

This article covers add MySQL database in Websitepanel and fix a common errors related to this task.

A database interface allows you to create and manage the existing MySQL databases. If you are creating a PHP based application or any application that uses a database, then you will need to create a database and a database user to access this database.


To create a MySQL database in WebsitePanel:

1. Click on the plan you want to add a MySQL database to.

2. Then click Databases.

3. Click MySQL.

4. Click Create Database.

5. Enter a name for your database.

6. Click Save.

7. You can click on the database you just added to edit it.

8. You can view existing users or delete or backup the database.

9. Click Save when you are finished


Success! You can view your added databases and see how many allowed databases you've used.

Code 9c57 Windows Update Error - Fix it now

This article covers fix the Code 9c57 Windows Update Error. Error Code 9c57 generally corresponds to a failed installation of Internet Explorer 11. In addition to that, the KB 2882822 update requires validation of genuine Windows installed on the system, so you may visit the link referred in the third question and check if your Windows requires activation.


What is 'Error code 9c57' in Windows Update?

Windows Update error 9c57 is an error that may occur when you are trying to install “Windows IE9 in Windows 7 for x64 Based System” update.


How can you fix ‘Error code 9c57’ in Windows Update?

Some of the common fixes include:

1. Manually installing Internet Explorer

2. Deleting SoftwareDistribution and running DISM command and sfc/ scannow command


Causes of Windows Update Error 9C57 - Error 9C57:

During software design, programmers code anticipating the occurrence of errors.

However, there are no perfect designs, as errors can be expected even with the best program design. Glitches can happen during runtime if a certain error is not experienced and addressed during design and testing.


To fix Windows Update Error 9C57 - Error 9C57:

1. When you get a runtime error, keep in mind that it is happening due to programs that are conflicting with each other. 

The first thing you can do to resolve the problem is to stop these conflicting programs.

2. Update / Reinstall Conflicting Programs

3. Virus infection causing runtime error on your computer must immediately be prevented, quarantined or deleted. Make sure you update your virus program and run a thorough scan of the computer or, run Windows update so you can get the latest virus definition and fix.

4. You might be getting the error because of an update, like the MS Visual C++ package which might not be installed properly or completely. What you can do then is to uninstall the current package and install a fresh copy.

5. You might also be experiencing runtime error because of a very low free space on your computer.

6. If the error is related to a bad graphics driver, then you may do the following:

Open your Device Manager, locate the graphics driver

Right click the video card driver then click uninstall, then restart your computer

WordPress 401 error - Fix it now

This article covers easy to follow methods to resolve WordPress 401 error. 

The 401 error has multiple names including Error 401 and 401 unauthorized error. 

These errors are sometimes accompanied by a message ‘Access is denied due to invalid credentials’ or ‘Authorization required’.


To fix the 401 error in WordPress:

1. Temporarily Remove Password Protection on WordPress Admin

2. Clear Firewall Cache to Solve 401 Error in WordPress

3. Deactivate All WordPress Plugins

4. Switch to a Default WordPress Theme

5. Reset WordPress Password

Unable to add bridge port vnet0 No such device - Fix it now ?

This article covers how to resolve the error, Unable to add bridge port vnet0: No such device which happens when the bridge device specified in the guest's (or domain’s) <interface> definition does not exist.

Theerror messages reveal that the bridge device specified in the guest's (or domain's) <interface> definition does not exist.

To verify the bridge device listed in the error message does not exist, use the shell command ifconfig br0.

A message similar to this confirms the host has no bridge by that name:

br0: error fetching interface information: Device not found

If this is the case, continue to the solution.


To fix the error, Unable to add bridge port vnet0: No such device :

1. Edit the existing bridge or create a new bridge with virsh

Use virsh to either edit the settings of an existing bridge or network, or to add the bridge device to the host system configuration.

2. Edit the existing bridge settings using virsh

Use virsh edit name_of_guest to change the <interface> definition to use a bridge or network that already exists.

For example, change type='bridge' to type='network', and <source bridge='br0'/> to <source network='default'/>.

Install PowerDNS and PowerAdmin on CentOS 7 - How to do it

This article covers the step by step procedure to install PowerDNS on CentOS 7. PowerDNS (pdns) is an open source DNS server written in C++ and released under GPL License. It has become a good alternative for the traditional DNS server Bind, designed with better performance and low memory requirements. 

PowerDNS provides two products, the Authoritative server, and the Recursor. 

The PowerDNS Authoritative server can be configured through the different backend, including the plain Bind zone files, RDBMS such as MySQL, PostgreSQL, SQLite3 or LDAP.


To Install PowerDNS on CentOS 7:

1. First let's start by ensuring your system is up-to-date:

$ yum clean all

$ yum -y update

2. Install PowerDNS and backend.

First, you need to enable EPEL repository and all required packages on your system:

$ yum install epel-release

$ yum install bind-utils pdns pdns-recursor pdns-backend-mysql mariadb mariadb-server

Enable PowerDNS on boot and start PowerDNS server:

$ systemctl enable mariadb

$ systemctl enable pdns

$ systemctl enable pdns-recursor

3. Configure MariaDB.

By default, MariaDB is not hardened. You can secure MariaDB using the mysql_secure_installation script. you should read and below each steps carefully which will set root password, remove anonymous users, disallow remote root login, and remove the test database and access to secure MariaDB:

mysql_secure_installation

4. Create PowerDNS Database and User in MariaDB.

Login as a MariaDB root and create a new database and tables:

### mysql -uroot -p

5. Configure PowerDNS.

Open the /etc/pdns/pdns.conf file.

Finally, restart the Power DNS service:

$ systemctl restart pdns.service

$systemctl enable pdns.service

6. Configure Recursor.

Open the /etc/pdns-recursor/recursor.conf file.

ModSecurity File Upload Error With SecRequestBodyNoFilesLimit

This article covers ModSecurity File Upload Error With SecRequestBodyNoFilesLimit error which happens when the ModSecurity parameter SecRequestBodyNoFilesLimit has reached the limit.

When this issue occurs, you will be Unable to upload file to the website: Request body no files data length is larger than the configured limit.

This error can occur when WAF_SECREQUESTBODYNOFILESLIMIT parameter value reached its limit.


Symptoms of ModSecurity File Upload Error:

1. Unable to upload a file to the website hosted in Plesk with the error:

413 Request entity too large

Request Entity Too Large

The requested resource

/upload-a-file/

does not allow request data with POST requests, or the amount of data provided in the request exceeds the capacity limit.

2. ModSecurity component is installed on the server.

3. The following error can be found in /var/www/vhosts/example.com/logs/error_log file:

[:error] [pid 21701] [client 203.0.112.2] ModSecurity: Request body no files data length is larger than the configured limit (1048576).. 

Deny with code (413) [hostname "www.example.com"] [uri "/wp-admin/admin-ajax.php"] [unique_id "Wakfj-fvNMmcLKLp-n8PjQAAAAE"]


Steps to resolve ModSecurity File Upload Error:

1. Log into the server via SSH.

2. Open /etc/asl/config file using the vi text editor.

3. Increase the value for the WAF_SECREQUESTBODYNOFILESLIMIT directive, for example to the value as below:

WAF_SECREQUESTBODYNOFILESLIMIT "10000000"

Note: it is specified in Bytes.

4. Execute the command below to update the rulesets:

for i in daily weekly monthly; do /usr/local/psa/bin/sw-engine-pleskrun /usr/local/psa/admin/plib/DailyMaintainance/script.php -f UpdateModSecurityRuleSet --period "${i}"; done

This way the change will remain persistent after any updates/rulesets changes.

Date Time in Laravel and PHP with Carbon

This article covers how to manage date/time easily in Laravel and PHP with Carbon. Basically, Carbon is a package that helps us to deal with date/time in Laravel and PHP in a much easier and systematic manner.

Working with date and time in PHP is not the easiest or most clear of tasks. We have to deal with strtotime, formatting issues, lots of calculations, and more.


Carbon provides some nice functionality to deal with dates in PHP such as:

1. Dealing with timezones

2. Getting current time easily

3. Converting a datetime into something readable

4. Parse an English phrase into datetime (first day of January 2016)

5. Add and Subtract dates (+ 2 weeks, -6 months)

6. Semantic way of dealing with dates


Carbon is already included in Laravel so there's no need to go and add it with Composer.

Whenever we need to use Carbon, we can import it like so:

<?php

use Carbon\Carbon;

After importing you can do a lot with this great package.

Install Monit monitoring system on CentOS 8 - How to do it

This article covers how to #install Monit on #Centos 8 system. Also, we dealt with how to configure Monit on Centos, adjusting the configuration and setting up alerts to notify the users.

#Monit is a free, open-source process supervision tool for Unix and Linux. With Monit, system status can be viewed directly from the command line, or via the native HTTP(S) web server. Monit is able to do automatic maintenance, repair, and run meaningful causal actions in error situations.


To enable web interface you need to make changes in monit configuration file. 

The main configuration file of monit located at /etc/monit. conf under (RedHat/CentOS/Fedora) and /etc/monit/monitrc file for (Ubuntu/Debian/Linux Mint). 

Monit is very easy to use nearly out of the box. By default, it is set up to check that services are running every 2 minutes and stores its log file in “/var/log/monit.


To Install Monit to monitor your server running CentOS:

1. Install EPEL repository: yum install epel-release yum update.

2. Install Monit: yum install monit.

3. Activate Monit to start automatically during the system boot and start it: systemctl enable monit systemctl start monit.


To #Install #Monit Package on #Ubuntu:

Run the commands given below;

sudo apt update

sudo apt install monit


After installing Monit, the commands below can be used to stop, start and enable Monit service;

sudo systemctl stop monit.service

sudo systemctl start monit.service

sudo systemctl enable monit.service

Adding users to the local admin group in PowerShell

This article covers how to add users to local admin group either via Group Policy Objective or directly via command line. 


To add a user to the local group in PowerShell:

You can add AD groups or users to the local admin group using the below Powershell command.

Add-LocalGroupMember -Group "Administrators" -Member "domain\user or group," "additional users or groups."


To add a user to the local admin group:

1. Right-click the newly created Group, select Properties, navigate to the Members tab, click Add… and enter designated users to the group, e.g. domain\administrator, domain\domain admins, domain\syskitmonitorservice. 

2. Add other users that also need administrative privileges, if necessary. 

3. Click OK to proceed.


To get local admin group members in PowerShell:

To get the local Administrators group members using PowerShell, you need to use the GetLocalGroupMember command. 

This command is available in PowerShell version 5.1 onwards and the module for it is Microsoft. PowerShell. LocalAccounts.


To Create a User Account in Windows 10 with PowerShell:

1. Open PowerShell as Administrator.

2. To create a new user account without a password, type New-LocalUser -Name "user_name" -Description "Description of your new account." -NoPassword .

3. To create a user account that has a password, firstly execute the following line: $Password = Read-Host -AsSecureString .

Advantages of NoSQL Databases - Get to know them now

This article covers the advantages of NoSQL Databases. #SQL databases are vertically scalable, NoSQL databases are horizontally scalable. SQL databases are table based, while NoSQL databases are document, key-value, graph or wide-column stores. 

SQL #databases are better for multi-row transactions, #NoSQL are better for unstructured data like documents or JSON.

#MongoDB, CouchDB, CouchBase, Cassandra, HBase, Redis, Riak, Neo4J are the popular NoSQL databases examples.

The structure of many different forms of data is more easily handled and evolved with a NoSQL database. 

NoSQL databases are often better suited to storing and modeling structured, semi-structured, and unstructured data in one database.


Main purpose of NoSQL?

NoSQL Database is a non-relational Data Management System, that does not require a fixed schema. 

It avoids joins, and is easy to scale. 

The major purpose of using a NoSQL database is for distributed data stores with humongous data storage needs. 

NoSQL is used for Big data and real-time web apps.


Reasons to Use a NoSQL Database includes:

1. Storing large volumes of data without structure. A NoSQL database doesn't limit storable data types.

2. Using cloud computing and storage. Cloud-based storage is a great solution, but it requires data to be easily spread across multiple servers for scaling.

3. Rapid development.


Main types of NoSQL databases?

There are four big NoSQL types: 

1. Key-value store

2. Document store, 

3. Column-oriented database,

4. Graph database. 

Each type solves a problem that can't be solved with relational databases. 

Actual implementations are often combinations of these. 

OrientDB, for example, is a multi-model database, combining NoSQL types.

Benefits of Data Warehouse in Business Organization

This article covers the Advantages of Data Warehouse. 

#Data #warehousing improves the speed and efficiency of accessing different data sets and makes it easier for corporate decision-makers to derive insights that will guide the business and marketing strategies that set them apart from their competitors. Improve their bottom line.

Unlike a database, which is focused on users inputting data, a data warehouse is architected for decision-making, ad hoc queries and analytics. Thus, enabling queries to be performed without any impact to your company's operational database.


A data warehouse is a type of data management system that is designed to enable and support business intelligence (BI) activities, especially analytics. Data warehouses are solely intended to perform queries and analysis and often contain large amounts of historical data.


A data warehouse can help support business needs, such as the ability to consolidate financial results within a complex company that uses different software for different divisions.


Benefits of a Data Warehouse:

1. Delivers enhanced business intelligence.

2. Saves times.

3. Enhances data quality and consistency.

4. Generates a high Return on Investment (ROI).

5. Provides competitive advantage.

6. Improves the decision-making process.

7. Enables organizations to forecast with confidence.

8. Streamlines the flow of information.


The key characteristics of a data warehouse are as follows:

1. Some data is denormalized for simplification and to improve performance.

2. Large amounts of historical data are used.

3. Queries often retrieve large amounts of data.

4. Both planned and ad hoc queries are common.

5. The data load is controlled.


A data warehouse is subject oriented because it provides information around a subject rather than the organization's ongoing operations.


Data warehouses will help you make better, more informed decisions for many reasons, including: 

1. Improved business intelligence

2. When you integrate multiple sources, you make decisions based on ALL of your data. 

3. Timely access to data: Quickly access critical data in one centralized location.

How to set up phpBB Forum on a website through cPanel

This article covers phpBB which is a completely free open-source Forum Software. It has lots of features while maintaining efficiency and ease of use. 

#phpBB, which is an abbreviation for PHP Bulletin Board, is one of the best free and open-source forum scripts for creating a forum. 


There are two ways to install phpBB on a website:

1. You can #install phpBB manually

2. Install phpBB via #cPanel Softaculous Apps Installer


To create a forum in phpBB:

1. Click Forums.

2. Enter the name of the new forum here.

3. Click Create new forum.

4. Enter a description for the new forum here.

5. Click Submit. 

That's it! The forum has been successfully created.


To Create a phpBB Forum:

1. Download and Install phpBB. The first thing you'll need to do is download the phpBB software.

2. Register Your phpBB Forum Administrator Account.

3. Set Up Your phpBB Forum.

4. Start Creating Content.


phpBB’s best features that you can use to help launch your first online forum:

1. Responsive design — supports the latest version of HTML5 and CSS3, thus providing you with a responsive and cross-browser compatible design.

2. Search engine crawler handling — comes with configurations and access control for over 100 crawlers for board optimization.

3. Unread message tracking — notifies users whether or not they have seen new published posts and topics.

4. Private message system — allows users to send direct messages to each other via the forum.

5. COPPA registration — prevents underage users from registering to the forum.

6. OAuth login — allows users to register using Google, Bit.ly, or Facebook accounts.

7. Data management — supports various popular database management tools like MySQL, Oracle Database, and SQLite.


Reasons why you should consider creating an online forum:

1. Encourage discussion and feedback — users can use the available space to exchange ideas and give you insights into the quality of your content for further improvement.

2. Support audience research — lets you observe visitor preferences and browsing habits in a closed environment.

3. Build a community — having great communication and sharing similar interests with other people will give your users a sense of belonging to a community.

Methods to reduce server load

This article covers tips to reduce server load. The load speed of websites mainly depends on the constant load that the server is maintained. 

Load expresses how many processes are waiting in the queue to access the computer processor. This is calculated for a certain period of time, and the smaller the number the better. 


Tips To optimize and speed up your server:

1. Enable caching.

2. Setup a fast reverse proxy.

3. Choose the right application server.

4. Fine tune your web server.

5. Turn on HTTP/2.

6. Defragment your database tables & optimize server settings.

7. Fix your DNS query speed.

8. Trim down your site's critical rendering path.


Why is your Website server slow?

The cause of slow servers usually lays with the web host. 

You could be having a slow site because you are hosted on a free web hosting. 

You are on a low quality hosting service with poor support. 

Or your site needs a higher spec hosting account with more resources eg a VPS.

A large volume of unoptimized images is usually the most common reason behind website slowness. 

High-resolution images can consume lots of bandwidth while loading. 

Uploading larger sized images and then scaling them down can unnecessarily increase the size of your web page – causing your website to load slowly.

MongoDB failed to load list of databases - Fix it now

This article covers how to resolve the error 'MongoDB failed to load the list of databases' can occur due to various reasons that include failed database user/password authentication, outdated Robo 3T version, and so on.

The error 'MongoDB failed to load the list of databases' means that you can't connect if there are no databases to list. 


To fix the error 'MongoDB failed to load the list of databases':

1. You can fix this issue with 1.2 connecting to a new mongo 4.2.

It's fixed when using robo3t version 1.3, which supports newer version of mongo.

2. You can create a database and a collection for it. 

Once you create a database and a collection, it works.

3. You will need to upgrade mongodb to the last version, so you can to connect in your local database.

MongoDB error network is unreachable - Fix it now

This article covers methods to resolve the error 'MongoDB error network is unreachable' which can occur due to many reasons that include network issues, if the mongo server is not started, and so on.

To resolve this #MongoDB #error:
1. On Ubuntu server, to open mongo shell run:

$ mongo

2. Inside mongo shell, type following command to create new a admin user.

> use admin;
> db.createUser({user:"admin", pwd:"password", roles:[{ role: "root", db: "admin" }]});

3. By default mongodb is configured to allow connections only from localhost(IP 127.0.0.1).
We need to allow remote connections from any ip address. The following change should only be done in your development server. Open up etc/mongod.conf file and do the following change.

# network interfaces
net:
port: 27017
bindIp: 0.0.0.0   #default value is 127.0.0.1


Also in the same mongod.conf file uncomment security option and add authorization option as shown below:

security:
authorization: enabled    


4. Save and exit the mongod.conf file and restart mongodb server:

$ sudo servcie mongod restart

Use Nmap to Scan Open Ports - How to

This article covers how to use Nmap to Scan Open Ports. Nmap is the world's leading port security network scanner. The Nmap hosted security tool can help you determine how well your firewall and security configuration is working.

How would you tell Nmap to scan all ports?
By default, Nmap scans the 1,000 most popular ports of each protocol it is asked to scan.
Alternatively, you can specify the -F (fast) option to scan only the 100 most common ports in each protocol or --top-ports to specify an arbitrary number of ports to scan.

The OS and Service scanning options are helpful for scanning a particular port or service to get more information.
If a service is running on a non-default port, it might be by design – or it might suggest there is a security breach.
Ports often have a default usage. Most ports under 1000 are dedicated and assigned to a specific service.

What file does Nmap use to determine which ports to scan?
Nmap needs an nmap-services file with frequency information in order to know which ports are the most common.

Malicious ("black hat") hackers (or crackers) commonly use port scanning software to find which ports are "open" (unfiltered) in a given computer, and whether or not an actual service is listening on that port. They can then attempt to exploit potential vulnerabilities in any services they find.

Website Iframe malware injection

This article covers methods to secure websites from iframe attacks. Iframes Bring Security Risks. If you create an iframe, your site becomes vulnerable to cross-site attacks. You may get a submittable malicious web form, phishing your users' personal data.
One of the most popular online attacks that happens all the time has to do with thousands of legitimate websites being hacked with the “Iframe code injection” attack resulting in Cross Site Scripting (XSS) or silent redirections to malicious websites.
This means that unsuspicious visitors get infected with a malware virus when they visit that legitimate websites.

What happens is that an “Iframe html code” is injected at the end (usually) of “index.php” or “index.html” files of the legitimate websites.
This “iframe” code embeds into the legitimate site a malicious code which installs a virus to the visitor’s PC or tries to steal sensitive information.

Some tips to clean the infection of your site:
1. First of all scan and clean your own computer which you use to connect to your site. The Trojan might be undetectable by some antivirus, so you better format the windows OS and install a fresh copy.
2. Change ALL your passwords and most importantly the FTP passwords and the website control panel passwords.
3. Download all files from your website and store them in a safe place on your PC to further analyze the infection.
4. If you have a recent clean backup of your website, upload the backup files and replace all current files.
5. If you don’t have a backup (shame on you!!) then edit all source code (html or PHP files) and search for <iframe> html commands inside the code. Delete the suspicious <iframe> and re-upload all html, php files to your website.
6. Download an antivirus tool which scans the website for <iframe> content.
If you use WordPress there are some great security plugins which scan your website's source code for infections and also protect the site with a firewall.

Perform Monitoring with PRTG

This article covers how to use #monitoring with PRTG. With PRTG. Today, nearly every business relies on a computer and network infrastructure for internet, internal management, telephone, and email.
Here comes the role of PRTG to ensure that business data flows seamlessly between employees, offices, and customers.


Monitoring availability, bandwidth, and usage of your network is easy when you have PRTG. As a versatile solution, PRTG adapts to your needs and supports you with monitoring your application servers and services as whole and not only separate single aspects of these.
To set up your network monitoring, download the PRTG installer from the Paessler website and follow the steps in the installation wizard, or set up a PRTG Hosted Monitor instance on https://www.paessler.com/prtg-hosted-monitor and install a remote probe in your LAN.
PRTG Network Monitor is Paessler's powerful network monitoring solution.

In #PRTG, you can view Toplists for all xFlow sensors. xFlows are monitoring data pushed from network devices to PRTG.
You can use them to monitor where and how much data is traveling to and from.
This way, they determine which machine, protocol, or user is consuming bandwidth.

Remote probes allow you to monitor different sub-networks that are separated from your PRTG on premises core server by a firewall and to keep an eye on remote locations. You can install one or more remote probes.

The best network monitoring tools:
1. SolarWinds Network Performance Monitor (FREE TRIAL).
2. Datadog Network Performance Monitoring (FREE TRIAL).
3. ManageEngine OpManager (FREE TRIAL).
4. Progress WhatsUp Gold (FREE TRIAL).
5. Site24x7 Network Monitoring (FREE TRIAL).
6. Paessler PRTG Network Monitor (FREE TRIAL).
7. Nagios Core.
8. Zabbix.

Plesk Panel Database issues

This article covers the different #Plesk database errors. The main reason for database issues in Plesk is the misconfiguration of the PSA database.
Plesk employs the native functionality of database management tools for checking and repairing databases.
For example, for #MySQL databases it uses the mysqlcheck utility.

To check and repair a #database:
1. Go to Websites & Domains > Databases > Check and Repair in a database tools pane.
2. If problems are found, click the link See Details and Resolve.
3. The list of tables and corresponding problems will open.
For MySQL databases, you can choose the tables that you would like to repair.
For Microsoft SQL databases, you can repair an entire database only.
Click Repair Selected (for MySQL) or Repair (for Microsoft SQL).

Nginx ingress on DigitalOcean kubernetes using Helm

This article covers how to set up Nginx ingress on DigitalOcean Kubernetes using Helm. To implement this successfully, an Ingress Controller must be present; its role is to implement the rules by accepting traffic (most likely via a Load Balancer) and routing it to the appropriate Services.
Most Ingress Controllers use only one global Load Balancer for all Ingresses, which is more efficient than creating a Load Balancer per every Service you wish to expose.

To install the Nginx Ingress Controller to your cluster, run the following command:
$ helm install nginx-ingress stable/nginx-ingress --set controller.publishService.enabled=true
This command installs the Nginx Ingress Controller from the stable charts repository, names the Helm release nginx-ingress, and sets the publishService parameter to true.

Limit cPanel bandwidth using mod_cband

This article covers how to limit cPanel bandwidth using mod_cband. In order to compile mod_cband, we must have apxs2 installed.
We can achieve that by doing this:
$ apt-get install apache2-prefork-dev

Next we download and install mod_cband like this:
cd /tmp
wget http://cband.linux.pl/download/mod-cband-0.9.7.4.tgz
tar xzvf mod-cband-0.9.7.4.tgz
cd mod-cband-0.9.7.4
./configure
make
make install

The make install command should have added the mod_cband module to /etc/apache2/httpd.conf. Run:
$ vi /etc/apache2/httpd.conf
and check if you find a line like this:
LoadModule cband_module       /usr/lib/apache2/modules/mod_cband.so

Finally restart Apache:
/etc/init.d/apache2 restart
The mod_cband installation is now finished.

Ubuntu error Some index files failed to download

This article covers methods to fix #Ubuntu #error "Some index files failed to download". You can resolve this error by copying the contents of the sources list file from another functional Ubuntu system and paste them into your system's sources list file.

To install community-supported #software packages, proprietary packages, and packages not available under a completely free license, you might consider enabling the following repositories:
1. Universe – Community-maintained free and open-source software.
2. Restricted – Proprietary drivers for devices.
3. Multiverse – Software restricted by copyright or legal issues.

To enable these #repositories, invoke the commands below:
$ sudo add-apt-repository restricted
$ sudo add-apt-repository multiverse
$ sudo add-apt-repository universe

Then update your package lists:
$ sudo apt update

Migrate database from MySQL to PostgreSQL using pgLoader

This article covers how to migrate a database using pgLoader with a single #command.
PostgreSQL, also known as “Postgres,” is an open-source relational database management system (RDBMS).
It has seen a drastic growth in popularity in recent years, with many developers and companies migrating their data to Postgres from other database solutions.
The prospect of migrating a database can be intimidating, especially when migrating from one database management system to another.

Facts about pgLoader:
1. pgLoader is an open-source #database migration tool that aims to simplify the process of migrating to #PostgreSQL.
2. It supports #migrations from several file types and RBDMSs — including #MySQL and SQLite — to PostgreSQL.
3. #pgLoader is a flexible tool that can perform a database migration in a single command.
4. With a few configuration tweaks, it can migrate an entire database from one physical machine to another using a secure SSL/TLS connection.

DirectAdmin error is not a valid username

This article covers tips to resolve DirectAdmin error: is not a valid username which happens if the username length of the account is larger than the value set in the DirectAdmin configuration file.
To fix DirectAdmin Admin Backup/Transfer restore error with no details,  try to restore to a number than 10 characters.
You have to edit directadmin configuration and set this variable.
[root@mx ~]# vi /usr/local/directadmin/conf/directadmin.conf
then edit max_username_length to larger value. I my example 20.
max_username_length=20

DirectAdmin invalid characters in mail autoresponder

This article covers tips to resolve invalid character error in mail-in DirectAdmin.
The reason for this error is that Oracle sees a character that it considers invalid.
If you use a special character in a table or column name, then try putting double quotation-marks around the name.
If you use a special character in a value, put quotation marks around it.
If you look closely, you'll notice a punctuation mark of some sort between "Character" and "Invalid."
This means you have included punctuation marks in the information you typed into that field.
Remove all punctuation marks, symbols, or other special characters and you will be able to proceed.

To fix #DirectAdmin #error: Invalid characters in mail autoresponder:
1. You have to set correct encoding for Directadmin theme that is used. In this case, default “enhanced” theme was used so I edited accordingly:
vi /usr/local/directadmin/data/skins/enhanced/lang/en/lf_standard.html
2. Then find variable “LANG_ENCODING” and correct it to your needs. In my case:
LANG_ENCODING=UTF-8

Docker error while loading shared libraries

This article covers how to fix docker #error while loading shared libraries which happens in the process of building a docker image.
The docker run command creates a container from a given image and starts the container using a given command. It is one of the first commands you should become familiar with when starting to work with #Docker.
Docker containers make it easy to put new versions of software, with new business features, into production quickly—and to quickly roll back to a previous version if you need to.
They also make it easier to implement strategies like blue/green deployments.

To stop all running containers:
1. kill all running #containers with docker kill $(docker ps -q)
2. delete all stopped containers with docker rm $(docker ps -a -q)
3. delete all images with docker rmi $(docker images -q)
4. update and stop a container that is in a crash-loop with docker update --restart=no && docker stop.

Configure AWS load balancer with Cloudformation

This article will guide you on how to create an Application Load balancer and its dependencies using CloudFormation. 

Load balancing is defined as the methodical and efficient distribution of network or application traffic across multiple servers in a server farm. 

Each load balancer sits between client devices and backend servers, receiving and then distributing incoming requests to any available server capable of fulfilling them.

Software load balancers is that hardware load balancers require proprietary, rack-and-stack hardware appliances, while software load balancers are simply installed on standard x86 servers or virtual machines.

Another critical difference between hardware and software load balancers lies in the ability to scale.


Elastic Load Balancing supports the following types of load balancers: 

1. Application Load Balancers, Network Load Balancers, and Classic Load Balancers. 

2. Amazon ECS services can use either type of load balancer. 

3. Application Load Balancers are used to route HTTP/HTTPS (or Layer 7) traffic.

Shadow Redundancy Exchange Server 2016

This article will guide you on the features of Shadow Redundancy #Exchange Server 2016. 

To remove all messages from a particular queue, click the Queues tab. 

Select a queue, right-click, and then select Remove #Messages (with NDR) or Remove Messages (without NDR).

Submission queue. #Mailbox servers and Edge Transport servers. Holds messages that have been accepted by the Transport service, but haven't been processed. Messages in the Submission queue are either waiting to be processed, or are actively being processed.


Advantages and Features of Exchange Server 2016:

1. Improved search experience. Thanks to the asynchronous and decentralized architecture.

2. New cloud-focused architecture that supports mobility.

3. Easier collaboration on SharePoint and OneDrive.

4. Faster failover and failure isolation.

5. Outlook on the web and Outlook app feature enhancement.

Docker error initializing network controller

This article will guide you on tips to resolve the error 'Docker error initializing network controller'. This docker error happens in the process of trying to start the docker service. 

To fix docker failed to start daemon: Error initializing network controller no network available:

Add a docker0 bridge interface;

# ip link add name docker0 type bridge

# ip addr add dev docker0 172.17.0.1/16


Docker originally used Linux Containers (LXC) and was designed for Linux kernel only.

In the case of Windows, Docker uses Hyper-V which is in-built virtualization technology provided by Windows. Docker uses Hypervisor framework in the case of MacOs for virtualization.

Docker is a platform and tool for building, distributing, and running Docker containers.

Kubernetes is a container orchestration system for Docker containers that is more extensive than Docker Swarm and is meant to coordinate clusters of nodes at scale in production in an efficient manner.

Install Azure PowerShell module

This article will guide you on how to install the Azure PowerShell module using the cmdlets method and through offline.

Azure CLI is available on #Windows, Mac, Linux, etc. Azure cloud shell is another option that can be browser-accessible and authenticated. 

Azure cloud shell gives you options to choose from either bash or Powershell. 

The Get-Command cmdlet gets all #commands that are installed on the computer, including cmdlets, aliases, functions, filters, scripts, and applications. 

Get-Command gets the commands from #PowerShell modules and commands that were imported from other sessions.

We can use Windows Powershell for managing Azure resources by installing az module.

To install the Azure PowerShell #module, run the following command. Make sure that the Windows PowerShell ISE is opened in "run as administrator” mode. 

By default, the PowerShell gallery is not configured as a Trusted repository for PowerShellGet. 

Click on “Yes to All” to continue with the installation.


Modules included in Azure PowerShell:

1. Azure PowerShell Az. Automation.

2. Azure PowerShell AzureRM. Automation.

3. Other PowerShell modules.

4. Internal Orchestrator. AssetManagement. Cmdlets module.

5. Python 2 modules.

6. Custom modules that you create.

Phpmyadmin keeps asking for password

This article will guide you on tips to resolve phpMyAdmin error when it keeps asking for a password to login.

This #phpMyAdmin problem can arise due to many different reasons that include browser cache issues, using an incorrect password, drive being full, and so on. 

To fix this problem, you need to reset the cPanel password as follows:

1. Login to WHM at https://<your vps ip>:20871) as user root, using the server's root password.

2. Go to 'Home >> Account Information >> List Accounts'.

3. Click on the + sign near the domain for which you want to change the cPanel password. 4. You can see an option there to change the password.

5. Select the option "Sync #Mysql password with account password" and change password.

KVM hypervisor How it Works

This article will guide you on how the KVM #hypervisor works. Basically, KVM is a type-2 hypervisor (installed on top of another OS, in this case some flavor of #Linux). 

It runs, however, like a type-1 hypervisor and can provide the power and functionality of even the most complex and powerful type-1 hypervisors, depending on the tools that are used with the KVM package itself.

KVM (for Kernel-based Virtual Machine) is a full virtualization solution for Linux on x86 hardware containing virtualization extensions (Intel VT or AMD-V).

Using KVM, one can run multiple virtual machines running unmodified Linux or Windows images.

1. The main difference between Type 1 vs. Type 2 hypervisors is that Type 1 runs on bare metal and Type 2 runs on top of an operating system. 

2. Each hypervisor type also has its own pros and cons and specific use cases.

3. Xen is better than #KVM in terms of virtual storage support, high availability, enhanced security, virtual network support, power management, fault tolerance, real-time support, and virtual CPU scalability.

4. A Type 1 hypervisor takes the place of the host operating system. 

5. Type 1 hypervisors are highly efficient because they have direct access to physical hardware. 

6. This also increases their security, because there is nothing in between them and the CPU that an attacker could compromise.

Build serverless web application with AWS lambda

This article will guide you on how to build serverless Web Application AWS #Lambda. 

1. The application architecture uses #AWS Lambda, Amazon API Gateway, Amazon DynamoDB, Amazon Cognito, and AWS Amplify Console. 

2. Amplify Console provides continuous deployment and hosting of the static web resources including HTML, CSS, JavaScript, and image files which are loaded in the user's browser. 

3. JavaScript executed in the browser sends and receives data from a public backend API built using Lambda and API Gateway. 

4. Amazon Cognito provides user management and authentication functions to secure the backend API. 

5. Finally, #DynamoDB provides a persistence layer where data can be stored by the API's Lambda function.

NTFS partition failed to mount

This article will guide you on methods to resolve NTFS partition failed to mount error. 

Causes of NTFS partition failed to mount error:

1. File system errors

After using #NTFS drive in #Windows you have detached it without removing it safely. Therefore NTFS journal has not been emptied from temporary streams.

To fix the problem:

i. Open Disk Utility under #Mac OS X. 

ii. You will find it in Applications – Utilities.

iii. Choose NTFS partition on the left and find First Aid tab on the right. 

iv. Under this tab you will find Verify Disk option. 

v. Run Verify and then Repair.

Email address rejected by server error in iPhone

This article will guide you on methods to resolve "Email address rejected by server" error which happens in iPhone devices mainly due to wrong mail settings. 

The recipient was rejected by the server because it does not allow relaying. Chances are you need to check your outgoing mail server settings. Go to Settings - Mail, Contacts, Calendar and tap on your email account. Tap on "Account, then go down to the "Outgoing Mail Server" section and tap on "SMTP."

If you can't send email try the following: On your iPhone or iPod Touch screen tap Settings and then Mail, Contacts, Calendars. 

Select your email account from the list, and then select it again on the next screen. 

Scroll down to the bottom and tap on the SMTP field under Outgoing Mail Server.


To fix email rejected by server:

1. Go to Settings > Mail > Accounts and select the account you are having difficulty with.

2. Click on your email address at the top of the screen.

3. Go down to the bottom of the screen where it says SMTP and click on it.

4. Select the Primary Server at the top of the screen.

InnoDB vs MyISAM Performance

This article will guide you on the performance of InnoDB and MyISAM. MyISAM will out-perform InnoDB on large #tables that require vastly more read activity versus write activity. MyISAM's readabilities outshine InnoDB because locking the entire table is quicker than figuring out which rows are locked in the table.

InnoDB is better option while you are dealing with larger #database because it supports transactions, volume while MyISAM is suitable for small project. 

InnoDB and MYISAM , are storage engines for MySQL . 


InnoDB and #MYISAM differ on their locking implementation: 

i. #InnoDB locks the particular row in the table, and MyISAM locks the entire MySQL table.

ii. As InnoDB supports row-level locking which means inserting and updating is much faster as compared with MyISAM.


Which storage engine is best in #MySQL:

1. InnoDB: The default option in MySQL 5.7, InnoDB is a robust storage engine that offers:

2. MyISAM: The functionality that sets MyISAM apart is its capability for:

3. NDB (or NDBCLUSTER): If a clustered environment is where your database will be working, NDB is the storage engine of choice.

Customer Service Strategy Best Methods

This article will guide you on the customer service strategies that we follow to refresh the existing one based on some aspects.

The Purpose of the Service Strategy is to define the perspective, position, plans, and patterns that a service provider needs to be able to execute to meet an organization's #business Outcomes.

There are five major aspects of service design. These are service solutions, management information systems and tools, technology and management architectures and tools, processes and measurement systems.

Winning #Customer #Service #Strategies:

1. Optimize Agent Training. Invest in an agent training program to ensure your agents are empowered and prepared to meet customer needs.

2. Choose the Right Tools..

3. Improve Call Center KPIs..

4. Personalize the Experience..

5. Make Data-Drive Decisions..

6. Optimize Quality Assurance (QA).

7. Offer Omnichannel Support.

WordPress error This site ahead contains harmful programs

This article will guide you on how to tackle this site ahead contains harmful programs error in #WordPress. 

To remove the #deceptive #site notice, you'll have to first remove the malware on your site. 

Then, submit a review request at Google Search Console to delete the notice. In 1-3 days, Google will update the status and remove the deceptive site warning.

You can check Google's Transparency Report to see if a website is blacklisted due to a Copyright or DMCA claim. 

You can also use Google's #Safe #Browsing Site Status tool.

To fix website that is NOT safe for browsing:

1. Scan your own computer with antivirus and malware detection software and remove all threats.

2. Change passwords to your hosting account (cPanel , plesk, webmin etc.)

3. Change FTP passwords.

4. Verify that your website is infected and remove malicious code.

WordPress Upload Failed to Write File to Disk error

This article will guide you on how to resolve 'Upload: Failed to Write File to Disk' Error in WordPress. 

The Upload: Failed to Write File to #Disk WordPress error can occur due to a number of reasons. 

The most typical cause of the error is incorrect folder permissions. 

But besides incorrect permissions, this error can also ocurr due to your website exceeding the quota limit of the hosting service.

To fix this #WordPress #error:

1. Try changing the permissions on the wp-content directory to 766. 

2. If you still have problems, try 767, 775 or 777. 

3. Once your uploads are working, change the permissions on wp-content back to 755 again and check that everything still works OK.

OpenLDAP and phpLDAPadmin on Linux

This article will guide you on how to install #OpenLDAP and phpLDAPadmin on #Ubuntu. Also, we covered the prospective error affacting OpenLDAP and phpLDAPadmin and its solution as well.

#LDAP (Lightweight Directory Access Protocol) is an open and cross platform protocol used for directory services authentication. LDAP provides the communication language that applications use to communicate with other directory services servers.

#Kerberos is used to manage credentials securely (authentication) while LDAP is used for holding authoritative information about the accounts, such as what they're allowed to access (authorization), the user's full name and uid.

To access #phpLDAPadmin:

Point your browser to http://IP_OF_SERVER/phpldapadmin (IP_OF_SERVER is the actual IP address of your LDAP server). 

From the main window, click the login button in the left pane. 

When prompted, you will log into your DN and enter the password for the admin user created during the slapd reconfiguration.

Setup OpenVPN on Windows Server

This article will guide you on how to setup OpenVPN on windows.

OpenVPN is a virtual private #network (#VPN) system that implements techniques to create secure point-to-point or site-to-site connections in routed or bridged configurations and remote access facilities. 

To Configure OpenVPN client as service on Windows:

1. Editing your OpenVPN client configuration.

2. Storing your PrivateVPN.com credentials in a file.

3. Import edited .ovpn file and user.auth file to OpenVPN #config folder.

4. Configuring OpenVPN service to start automatically on boot.

To connect to OpenVPN from Windows Server:

i. Navigate to your #OpenVPN Access Server client web interface.

ii. Login with your credentials.

iii. Select 'OpenVPN Connect for #Windows'.

iv. Wait until the download completes, and then open it (specifics vary depending on your browser).

Reporting services configuration manager

This article will guide you on how to setup reporting services configuration manager. Report Manager is Web based interface that can be used to perform different tasks such as. Administer the Report Server,View the Reports and Manager the Report, and so on. You need to have the URL to access the Report Server by using Report Manager interface.

SQL Server Reporting Services (#SSRS) is a reporting #software that allows you to produce formatted reports with tables in the form of data, #graph, images, and charts. These reports are hosted on a server that can be executed any time using parameters defined by the users.

Report server items are always stored in libraries or in a folder within a library. 

When you access the SharePoint site, you see the Browse page and the Library Tools tab.

In #Reporting Services, URLs are used to access the Report Server Web service and the web portal. A test link of the URL appears on page when you define the URL so that you can immediately confirm that the settings you specified result in a valid connection.

To connect to Reporting Services Configuration Manager:

1. Click Start, then click #Programs, then click #Microsoft #SQL Server, then click Configuration Tools, and then click Report Server Configuration Manager. 

2. The Report Server Installation Instance Selection dialog box appears so that you can select the report server instance you want to configure.

WordPress 403 Forbidden Error

This article will guide you on different methods to fix the 403 #forbidden error in WordPress.

The 403 Forbidden #error means that your server is working, but you no longer have permission to view all or some of your site for some reason.

The two most likely causes of this error are issues with your WordPress site's file permissions or .htaccess file. 

Also, some plugin issues might also cause the #403 Forbidden error.

To Fix 403 Forbidden WordPress Error:

1. Create a Backup. Most of the time, you are not responsible for the errors that occur on your WordPress website hosting server.

2. Check . htaccess File.

3. Deactivate All Plugins. Login to your WordPress admin dashboard and navigate to #Plugins - Installed Plugins.

Memcached DDOS attack

This article will guide you on methods to mitigate Memcached DDOS attacks which occur mostly by accident. To mitigate this attack, you can Disable #UDP, #Firewall #Memcached servers, and so on.

 DoS attack is a denial of service attack where a computer is used to flood a server with TCP and UDP packets. A DDoS attack is where multiple systems target a single system with a DoS attack. The targeted network is then bombarded with packets from multiple locations.

DDoS attacks are illegal under the Computer Fraud and Abuse Act. Starting a DDoS attack against a network without permission is going to cost you up to 10 years in prison and up to a $500,000 fine.

There are three essential security measures that all small businesses should take to protect themselves from #DDoS #attacks: Use a web application firewall (#WAF): The absolute best way to prevent a DDoS attack is through the use of a WAF that blocks bad traffic and prevents DDoS attacks from accessing your web server.

A Denial-of-Service (#DoS) attack is an attack meant to shut down a machine or network, making it inaccessible to its intended users. DoS attacks accomplish this by flooding the target with traffic, or sending it information that triggers a crash.

Different DDoS attack method:

1. UDP flood.

2. ICMP (Ping) flood.

3. SYN flood.

4. Ping of Death.

5. Slowloris.

6. NTP Amplification.

7. HTTP flood.

Install SQL Server 2019 on Linux

This article will guide you the process to install #MSSQL Server 2019 on #CentOS 7 and Ubuntu 16.04.

SQL Server 2019 #Developer is a full-featured free edition, licensed for use as a development and test database in a non-production environment.

SQL Server 2019 allows us to integrate data from structured and unstructured data sources. 

We can now process diverse big data and relational data sources using Transact-SQL from SQL Server using PolyBase. 

We can see below PolyBase support external databases.

SQL Server Express can be used in production (beware of the limitations, like the 10GB cap), but according to this link Express is available for Linux. SQL Server Express is available to use in Production.

Starting with SQL Server 2017, SQL Server runs on Linux. It's the same SQL Server database engine, with many similar features and services regardless of your operating system. It's the same SQL Server database engine, with many similar features and services regardless of your operating system.

To run a SQL script in #Linux terminal:

1. Open Terminal and type mysql -u to Open the MySQL command line.

2. Type the path of your #mysql bin directory and press Enter.

3. Paste your #SQL file inside the bin folder of mysql server.

4. Create a #database in MySQL.

5. Use that particular database where you want to import the SQL file.

Cloudflare 404 Not Found error

This article will guide you on differerent methods to fix Cloudflare 404 Not Found #error which occurs when website content has been removed or moved to another URL. 

There are also other reasons why an error message could appear. 

The URL or its content (such as files or images) was either deleted or moved (without adjusting any internal links accordingly).

To fix #Cloudflare #404 error:

1. Retry the web page by pressing F5, clicking/tapping the refresh/reload button, or trying the URL from the address bar again.

2. Check for errors in the URL.

3. Move up one directory level at a time in the URL until you find something.

4. Search for the page from a popular search engine.

Important factors relating to 404 error:

i. A 404 not found error is an HTTP status code that means that the page you wanted to access a website couldn't be found on their server. 

ii. Did you know that search engines, such as Google and Yahoo, will get a negative impression of a website if it has too many HTTP 404 errors?

iii. A 404 is an HTTP status code that means you're able to communicate with the server but the server can't find the specific page.

Drupal Unexpected Error

This article will guide you on how to fix #drupal unexpected error. Drupal error occurs due to many reasons that include corrupt #database, non-compatible modules installation, cache, #PHP configuration, custom codes, and so on. 

1. An "Internal Server Error" is an #error on the web server that you're trying to access. 2. That server is misconfigured in some way that is preventing it from responding properly to what you're asking for. 

3. An "Internal Server Error" often occurs due to: Misconfigured Drupal core file or folder read and write permissions.

To clear cache in #Drupal:

i. In the Manage administrative menu, navigate to Configuration > Development > Performance (admin/config/development/performance).

ii. Click Clear all caches.

iii. A message saying the cache has been cleared appears at the top of the page.

Benefits of Push notification

This article is about the different benefits of push notifications. Basically, the push #notifications benefits the #website in improving the traffic. 

Push notifications can considerably enhance your customer experience. They're less intrusive than other forms of user engagement and can effectively drive traffic and help users by providing useful information. They allow your users to keep up with the latest updates, promotions, and offers.

Improve sales with customer service

In summary, we saw how to improve sales with reliable customer service. Along with some of the reasons to invest on customer service.

Basically, good customer service will always increase the likelihood of making a sale. It's not always guaranteed, and pressuring customers to buy won't get you anywhere. 

But keeping the human-to-human sentiment in mind will help people feel like they're not just there to make you money.

Providing excellent customer service means going the extra mile in making sure a customer is happy and satisfied with a company's products or services. 

It also involves providing service to a customer in a timely, pleasant manner.

To to deliver great customer service:

1. Know your product.

2. Maintain a positive attitude.

3. Creatively problem-solve.

4. Respond quickly.

5. Personalize your service.

6. Help customers help themselves.

7. Focus support on the customer.

8. Actively listen.

Django 400 bad request

This article will guide you on methods to resolve the #Django 400 bad request which is caused due to many reasons which include incorrect syntax, corrupt extensions, incorrect URL, and so on.

The 400 Bad Request #error is an #HTTP status code that means that the request you sent to the website server, often something simple like a request to load a web page, was somehow incorrect or corrupted and the server couldn't understand it.

To resolve 400 Bad Request:

1. Check for errors in the URL.

2. Clear Browser Cache and cookies.

3. Clear DNS Cache.

4. Check your File upload Size.

5. Deactivate Browser Extensions.


Default PHP settings in OpenLiteSpeed webserver

This article will guide you on the default settings for LSAPI. Basically, by default #OpenLiteSpeed support #PHP with external application and script handler. 

CyberPanel is a web hosting control panel powered by OpenLiteSpeed, which helps you set up sites on your DigitalOcean droplets easily and automatically back them up to DigitalOcean Spaces. Features. Different Level Of users.

To Configure #CyberPanel:

1. Enter admin for the username and 1234567 for the password.

2. Click on the user-menu arrow, next to the name "Cyber Pan".

3. Choose Edit Profile.

4. Select admin in the dropdown menu on the Modify User page.

5. You may now change the first name, last name, email address and password accordingly.

Galera cluster asynchronous replication

This article will guide you on steps to perform Galera cluster asynchronous replication for #MySQL.  Galera Cluster for MySQL is a true Multi-Master Cluster based on synchronous replication. It's an easy-to-use, high-availability solution, which provides high system up-time, no data loss and scalability for future growth.

To do you get a Galera Cluster:

1. Create a #Cloud Server. First, log in to your Cloud Server via an SSH tool such as putty.

2. Install #MariaDB Server on All Servers.

3. Configure Each Server in the #Cluster.

4. Initialize the Galera Cluster.

5. Test Galera Cluster #Replication.

301 redirect dns record

This article will guide you on how to set up 301 redirect DNS record. Basically, we must create the redirects carefully, so that we don't lose the traffic. 

301 redirect #DNS records are the best method that we can implement for achieving a good redirect.

Redirects are not bad for #SEO, but — as with so many things — only if you put them in place correctly. 

1. A bad implementation might cause all kinds of trouble, from loss of PageRank to loss of traffic. 

2. Redirecting pages is a must if you make any changes to your URLs.

3. A 301 redirect is a permanent #redirect that passes full link equity (ranking power) to the redirected page. 301 refers to the HTTP status code for this type of redirect. 

4. In most instances, the 301 redirect is the best method for implementing redirects on a website.

Remote Desktop on Debian Using X2Go

This article will guide you on the steps to set up remote desktop on #Debian. X2Go can be used to access Windows systems through a #proxy. Client packages can be run on #FreeBSD, Linux, #OS X, or #Windows. 

With the desktop sharing function of X2go you can gain full-access to the desktop of another computer, similar to programs such as Remote Desktop, TeamViewer, and LogMeIn. You can see an #X2go session from somebody else, but you can also see a normal desktop. Desktop Sharing functionality requires access to port 22.

To Connect to Linux Remotely Using #SSH in #PuTTY:

1. Select Session > Host Name.

2. Input the #Linux computer's network name, or enter the IP address you noted earlier.

3. Select SSH, then Open.

4. When prompted to accept the certificate for the connection, do so.

5. Enter the username and password to sign into your Linux device.

OpenVPN on Linux

This article will guide you on steps to set up OpenVPN on Linux.

OpenVPN config files (. ovpn) offer an easy way to configure #OpenVPN on your computer to work with our servers. These files contain the correct cipher types, #Certificate Authority, Certificate, and Private Keys. You can use these files on Mac, Linux, #Windows, Android, and iOS.

By default the OpenVPN Access Server comes configured with OpenVPN daemons that listen on port 1194 UDP, and OpenVPN daemons that listen on port 443 TCP. While the best connection for an OpenVPN #tunnel is via the #UDP port, we implement TCP 443 as a fallback method.

To Set up OpenVPN Server on Ubuntu #Linux:

1. Find and note down your public IP address.

2. Download openvpn-install.sh script.

3. Run openvpn-install.sh to install OpenVPN server.

4. Connect an OpenVPN server using iOS/Android/Linux/Windows client.

5. Verify your connectivity.

Directadmin ioncube How to install and fix related errors

This article will guide you on how to set up the Ioncube loader and fix DirectAdmin Ioncube #errors. Incorrect timezone and misconfiguration in the php.ini file cause errors after installing the Ioncube loader in #DirectAdmin.

ionCube and Zend are fine for code protection, and even if some decompilation service produced usable code from an encoded file, this would typically do little if anything to diminish the benefits from encoding and license enforcement, and may even result in increased revenue in the longer term for the software.

To use ionCube #PHP encoder?

To use this PHP function to output the required data complete the following steps:

1. Connect to your server via #SSH.

2. Create a PHP file.

3. Add the phpinfo() function.

4. Save the file inside the root website folder.

5. Display in a browser.

6. Search the document for ionCube references.

7. Delete the file when done.


To enable Ioncube #loader in #cPanel:

1. Login to #WHM (root)

2. Go to Server Configuration -> Tweak Settings -> PHP.

3. Select #ioncube check box for cPanel PHP loader.

4. Click on Save button.

That's it. 

This will enable Ioncube for you in 3rd party PHP binary.

Create user in DirectAdmin

This article will guide you on how we can create a #user in DirectAdmin and fix errors related to it. DirectAdmin provides an easy way to create a user as a reseller. And the errors during its creation are mainly due to home directory unavailability or improper permissions or due to the disk being full. 

#DirectAdmin can be accessed at http://server.ip.address:2222. 

Use the Admin username/password from the output information provided by setup.sh (the same information is specified in the /usr/local/directadmin/scripts/setup.

To install Direct Admin:

1. Set a main #domain name. By default, no web #site is associated with your server.

2. Create nameservers (optional) Add at least one additional IP address to your sever.

3. Set your e-mail address in the control panel.

Common Image Issues in WordPress

This article will help you #fix some of the most common #image issues in #WordPress. 

If your Media Library is loading but not showing images, there are two primary causes: an incompatible plugin, and improper file permissions. 

Testing #plugins follows the same advice as above, and if they're not the cause, file permissions may be.

To fix image size in WordPress:

1. Navigate to your WordPress admin dashboard.

2. Go to Settings - Media.

3. In Media Settings, edit the width and height dimensions to suit your values.

4. Click Save Changes to confirm.

Image Upload Issue in WordPress

This article will guide you on resolve Image Upload #Issue in WordPress. You will also learn its causes and how you can prevent this error in the future.

If your Media Library is loading but not showing images, there are two primary causes: an incompatible plugin, and improper file permissions. Testing plugins follows the same advice as above, and if they're not the cause, file permissions may be.

To Fix Common Image #SEO Issues in #WordPress:

1. #Upload an image in png or JPG format.

2. Align Image to the Left or Right.

3. Caption uploaded images.

4. Display Photos in Columns and Rows.

5. Create Responsive Gallery.

6. Set Features Image.

7. Add Cover Image for WordPress Pages and Posts.

8. Fix Twice Appearing Featured Image.

SPF record cPanel

This article will guide you on how to enable SPF record in #cPanel to reduce the chances of spoofing and thus saves the confidential information from being corrupted.

An #SPF (Sender Policy Framework) record is a type of TXT record in your #DNS zone file.

SPF allows email senders to define which #IP addresses are allowed to send mail for a particular domain.

To enable SPF record in cPanel:

1. Go to Add a record (or edit your #record if you already have one).

2. Name: enter the name of your #domain or subdomain used in your sender e-mail address.

3. TTL: enter 14400.

4. Type: select #TXT.

5. TXT Data: Enter your SPF record (e.g. v=spf1 a mx ~all)

6. Save your modifications.

Install a module in DNN

This article will guide you on how to #install a module in #DNN.

To Install / Update a #DotNetNuke #Module:

1. Log into your site as either HOST or another supersuser level account.

2. Open Settings -> Extensions.

3. Click "install extension".

4. Drag and drop the package into the window, or browse to the desired file to upload it.

5. Click Next, accept the license, continue through the install. When finished click on the Return button.

Disable Password Expiration with PowerShell

This article will guide you on the method to disable password expiration in the #Windows server with PowerShell.

#PowerShell is the shell #framework developed by Microsoft for administration tasks such as configuration management and automation of repetitive jobs. 

The term 'PowerShell' refers to both – the shell used to execute commands and the scripting language that goes along with the framework.

Why did #Microsoft make me change my password?

This is a security feature of all Microsoft accounts which cannot be turned off. 

If the option for 72 days password expiration is enabled in your account then it will automatically ask you to reset password.

To turn off the password feature on Windows 10:

1. Click the Start menu and type "netplwiz." The top result should be a program of the same name — click it to open.

2. In the User Accounts screen that launches, untick the box that says "Users must enter a name and password to use this computer."

3. Hit "Apply."

4. When prompted, re-enter your password to confirm the changes.

WordPress Login Page Refreshing and Redirecting Issue

This article will guide you on methods to resolve WordPress Login Page Refreshing and Redirecting Issue. 

Your login credentials (username/password) are incorrect. You're being blocked by your security plugin. You changed the WordPress login URL. There's a problem with your #WordPress #site (White Screen of Death, 500 Internal Server #Error, and so on.)

To fix redirect #problems in WordPress:

1. Delete cookies on that specific site.

2. Clear WordPress site, server, proxy, and browser cache.

3. Determine nature of redirect loop.

4. Check your HTTPS settings.

5. Check third-party services.

6. Check your WordPress site settings.

7. Temporarily disable WordPress #plugins.

8. Check redirects on your server.

Outsourcing Improves Software Development

In summary, in order to stay at the top, it is vital to respond to the demands and trends of your consumers. This is made easy and possible through Outsourcing. Today, we saw how #Outsourcing Improves #Software #Development.

Outsourcing has the potential to improve your business' efficiency, reduce the time to market of your application, and result in significant cost-savings, but only if it is done correctly. There are significant risks involved in outsourcing development as well.

Advantages of Outsourcing includes:

1. Focus on core tasks.

2. Lower costs.

3. Promote growth.

4. Maintain operational control.

5. Offer staffing flexibility.

6. Provide continuity and risk management.

7. Develop internal staff.

Windows Error Code 17

This article will guide you on different methods to tackle Windows Error Code 17 which causes Windows #program to crash, slow Windows performance and periodic system freeze.

#Windows error code 17 is a standard device driver error. This error can be attributed to either a corrupt driver or an outdated driver. To resolve, Do a search for your device #driver and see if the newest version available was released since you bought your hardware. If it was, you probably need to download the newest version.

To Fix #Spotify Could Not Be Started #Error Code 17:

1. Open the “Firewall & network protection” via Search bar;

2. Click on “Allow an app through firewall”;

3. Press “Change settings”;

4. In the list of programs, find Spotify and check the boxes for it under the Private and Public columns. 

If it's absent here, click on the “Allow another app …” button and add it manually.

HTTP 400 Bad Request error

This article will guide you on different methods to resolve #HTTP 400 Bad Request error which indicates that the request you sent to the #website #server, often something simple like a request to load a web page, was somehow incorrect or corrupted and the server couldn't understand it.

To Fix 400 Bad Request Error:

1. Check the Submitted URL.

2. Clear Browser #Cache.

3. Clear Browser Cookies.

4. File Upload Exceeds Server Limit.

5. Clear #DNS Cache.

6. Deactivate Browser Extensions.

SMTP Error 451

This article will guide you on different methods to resolve #SMTP #error 451 which occurs due to the receiving server rejecting your email. 

This can happen for a number of reasons but most likely is due to the recipients server being overloaded with #messages.

To fix SMTP Error: Failed to connect to server:

1. Modify the #firewall rules on the server to allow outbound connections on #ports like 465.

2. Modify the SMTP restrictions on the server.

3. Edit #PHPMailer settings like Host, Port etc.

4. Correct #DNS resolution for mail server.

Microsoft office Error code 1309

This article will guide you on different methods to resolve #Microsoft office Error code 1309. To avoid this error please right click the downloaded file and select “Extract All,” then choose a destination for the files to be extracted to.

If you encountered a problem while installing Office on a PC, try restarting your computer and then attempting to install Office again. If that didn't help, use this easy fix tool to uninstall #Office completely. After your uninstall is complete, try reinstalling Office.

To fix Another installation is already in progress on Windows 10:

1. Restart the #Windows Installer service.

2. End Windows Installer process.

3. Disable Windows Installer service and restart your #PC.

4. Perform Disk Cleanup.

5. Perform a Clean #Boot.

6. Check your #Registry.

7. Uninstall and reinstall Office.

GlusterFS install CentOS 7

This article will guide you on the steps to install and setup #GlusterFS. 

GlusterFS is a scalable #network filesystem suitable for data-intensive tasks such as cloud storage and media streaming. 

GlusterFS has a client and #server component. Servers are typically deployed as storage bricks, with each server running a glusterfsd daemon to export a local file system as a #volume.

To install GlusterFS:

1. Have at least two nodes. CentOS 7 on two servers named "server1" and "server2".

2. Format and mount the bricks.

3. Installing GlusterFS.

4. #Iptables configuration.

5. Configure the trusted pool.

6. Set up a GlusterFS volume.

7. Testing the GlusterFS volume.

How to set rDNS in Windows Name Servers

This article will guide you on how to set #rDNS records in Windows Name servers. rDNS means mapping the address to a #hostname.

Nslookup is an MS-DOS utility that enables a user to look up the IP address of a domain or host on a network. The #nslookup command can also perform a reverse lookup using an IP address to find the domain or host associated with that IP address.

PTR record ( a pointer record ) is the certain type of DNS record that resolves an IP address to a host name. Getting reverse #DNS going is done by finding the PTR records in use by a DNS server. These PTR records will be managed by the company that is in control of the IP address which was assigned to you.

1. A pointer (PTR) record is a type of Domain Name System (DNS) record that resolves an IP address to a domain or host name, unlike an A record which points a domain name to an IP address. 

2. PTR records are used for the reverse DNS lookup. Using the IP address, you can get the associated domain or host name.

3. An A record should exist for every PTR record. 

4. The usage of a reverse DNS setup for a mail server is a good solution. 

5. While in the domain DNS zone the hostname is pointed to an IP address, using the reverse zone allows to point an IP address to a hostname.

Plesk MSSQL remote connection

This article will guide you on how to enable and resolve #MSSQL related #errors. MSSQL remote connection is disabled in #Plesk servers by default.

To enable remote connections to MS SQL server:

1. Connect to the server via RDP.

2. Press the Start button, go to Microsoft SQL Server XXXX (where XXXX is the MSSQL version) and click the SQL Server XXX Configuration Manager.

3. Open the SQL Server Configuration Manager (Local) > #SQL Server Network Configuration menu and click the Protocols for MSSQLSERVERXXXX (where XXXX is the MSSQL version).

4. Make sure that the TCP/IP protocol has the Enabled status

5. Double-click the TCP/IP protocol, go to the IP Addresses tab and scroll down to the IPAll section.

6. Specify 1433 in the TCP Port field (or another port if 1433 is used by another MS SQL Server) and press the OK button:

Note: the specified port, e.g, 1433, must be opened in the firewall.

PHP header not redirecting error

This article will guide you on ways to fix #PHP #header not #redirecting error which generally occurs mainly due to the absence of ob_start() function, incorrect header formats, and so on. Your target destination server does not allow iframe redirects. Fix: Servers can solely determine if websites hosted on them can be reached via an #iframe redirect. The easiest way to resolve this is to simply change your selection from "Redirect using iframe" to "Redirect URL".

To redirect URL in PHP:

1. You can simply use the PHP header() function to redirect a user to a different page. 

2. The PHP code in the following example will redirect the user from the page in which it is placed to the URL http://www.example.com/another-page.php . 

3. You can also specify relative #URLs.

Server sent passive reply with unroutable address

This article will guide you on ways to resolve #Server sent passive reply with unroutable address which occurs due to bad server settings or when an FTP client is behind #NAT. 

#FileZilla has updated their FTP #client, and FTP over TLS is now used by default. This results in clients being unable to connect to their server from the outside network.

Make sure that you properly set up for FTP over TLS/SSL, explicit and passive ports are allowed on the #firewall and set on Serv-U:

i. Go to the Serv-U settings at: Global Limits & Settings > Settings - Network Settings.

ii. Ensure the Auto-configure firewall through UPnP checkbox is not checked.

iii. Ensure the Packet time-out is set to 300 seconds.

iv. Set #PASV Port Range is 50,000-50,009, and port forward these ports to your router.

This configures the file transfer traffic to be routed through the router and directly to Serv-U through “Port Forwarding”.


If, after this, you are still unable to connect, try disabling the "Block FTP_Bounce and FXP" option - this has been known to cause issues for some clients. To do this, follow the steps below:

1. Navigate to Global > Limits and Settings  > #FTP Settings.

2. Select Global Properties. (If this is not available, first select Use Custom Settings to gain access to it).

3. On the Advanced Options tab, make sure "Block FTP_Bounce and FXP" is unchecked (which it is by default).

Troubleshooting DHCP client issues

This article will guide you on troubleshooting different DHCP #client issues. Whenever a DHCP server gets a request from a client it responds with a DHCP offer containing IP address being offered, #network mask offered, the amount of time that the client can use and keep it, the ip address of the DHCP server making this offer.

To #Troubleshoot DHCP:

1. Check for IP Address Conflicts. #DHCP clients connect to the network using a leased IP address.

2. Check Physical Connectivity.

3. Test connections with other Client using a Static #IP Address.

4. Confirm Switch #Port #Configuration.

5. Verify the source of Clients IP Address.

Optimize Image before Upload Using PHP

This article will guide you on how to #optimize the #image on upload in #PHP. #TinyPNG uses smart lossy compression techniques to reduce the file size of your PNG files. By selectively decreasing the number of colors in the image, fewer bytes are required to store the data. The effect is nearly invisible but it makes a very large difference in file size.

To optimize images for the web:

1. Name your images descriptively and in plain language.

2. Optimize your alt attributes carefully.

3. Choose your image dimensions and product angles wisely.

4. Reduce the file size of your images.

5. Choose the right file type.

6. Optimize your thumbnails.

7. Use image sitemaps.

Install NET framework 4.8 on windows server 2016

This article will guide you on how to #install .NET framework 4.8 on windows server 2016. 

Can't install .NET Framework 3.5 #Windows 10 0x800f0954?

NET Framework 3.5 or Any Optional #Feature. If the error 0x800f0954 occurs installing optional Windows features, it may be because the system is unable to access the Windows Update server. This is especially true in case of domain-joined computers which is configured to downloads updates from a WSUS server.

By using the Windows server 2016, we can install . NET Framework 3.5 which can be easily installed through Server Manager. 

i) Open the 'Server Manager' and navigate to the 'Manage' and then select 'Add Roles and Features'. 

ii) Click next to 'Features' section and select the option '.

To install Microsoft . #NET Framework 3.5. 1 on Windows Server 2012 R2:

1. Open Server Manager and select Features.

2. Select Add roles and features to launch the Add Roles and Features wizard.

3. In the Add Roles and Features wizard, click.

4. In the Confirm Installation Selections dialog box, click Install.

When you try to install the Microsoft . NET Framework 4.7 on a #computer that runs Windows 7 Service Pack 1 (SP1), Windows Server 2008 R2 SP1, or Windows Server 2012, the setup is blocked and cannot continue. 

This issue occurs when the computer does not have the update for D3DComplier (D3DCompiler_47. dll) installed.

PHP cURL 403 forbidden error

This article will guide you on different methods to fix #PHP #curl #error which can occur due to syntax errors, mod_security issues, and also due to incorrect coding issues. A 403 #error indicates that the user cannot access certain web pages. It is a generic error that says: "You do not have permission to view this page". 

The "Access Denied" error appears when your Mozilla Firefox browser uses a different proxy settings or VPN instead of what's really set on your Windows 10 PC. Thus, when a #website detected that there is something wrong with your browser cookies or your network, it blocks you which is why you can't open it.Typically, the error is caused by an issue with the #URL or with cached files within the browser.

To fix 403 #forbidden:

1. What is a 403 Forbidden Error?

2. Refresh the Page.

3. Double Check the Address.

4. Clear Your Browser Cookies and Cache.

5. Check if You Have Permission to Access the URL.

Reset Windows Administrator Password from Hyper-V

This article will guide you on steps to reset the forgotten #Windows Administrator password from Hyper-V using an #ISO file.

Microsoft's Hyper-V virtualization can greatly reduce cost of operations. By purchasing a few very powerful #servers you can virtualize all or most of your entire infrastructure while reducing the cost of #hardware and maintenance.

To Reset Lost Admin Password for Hyper-V Virtual #Machine:

1. Select the administrator account, then click the Reset Password button to reset the password to blank. 

2. Click the Restart button to reboot the virtual machine, you are able to log in to the administrator account with a blank password.

Add User To Group in Linux

This article will guide you on how to add a #user to a #group in #Linux. The group permissions apply only to the group that has been assigned to the file or directory, they will not effect the actions of other users. The others permissions apply to all other users on the system, this is the permission group that you want to watch the most.

Groups can be thought of as levels of #privilege. A person who is part of a group can view or modify files belonging to that group, depending on the permissions of that file. User belonging to a group has privileges of that group, for example - sudo groups lets you run software as super user.

To view all groups present on the system simply open the /etc/group file. Each line in this file represents information for one group. Another option is to use the getent command which displays entries from #databases configured in /etc/nsswitch.


To Create a New Sudo User:

1. Log in to your server as the root user. #ssh root@server_ip_address.

2. Use the adduser command to add a new user to your system. Be sure to replace username with the user that you want to create.

3. Use the usermod command to add the user to the wheel group.

4. Test sudo access on new user account.


To List Users in Linux:

i. Get a List of All Users using the /etc/passwd File.

ii. Get a List of all Users using the getent Command.

iii. Check whether a user exists in the Linux system.

iv. System and Normal Users.

Executing queries from the MySQL Command Line

This article will guide you on how to run queries from the 3MySQL command line. The MySQL #Command Line Tool is a useful way to run #queries from the command line. It’s easy to run select queries and display the results in either a horizontal or vertical format, and the queries run are kept in a history file which you can navigate through. 

If you don't want to run a particular query after all you can use the c command to clear it.

The most common way to get a list of the MySQL #databases is by using the mysql client to connect to the MySQL server and run the SHOW DATABASES command. If you haven't set a password for your MySQL user you can omit the -p switch.

To Connect to a MySQL Database:

1. Click Services tab.

2. Expand the Drivers node from the Database Explorer.

3. Enter User Name and Password.

4. Click OK to accept the credentials.

5. Click OK to accept the default schema.

6. Right-click the MySQL Database #URL in the Services window.

Vestacp 502 bad gateway error

This article will guide you on common causes for #Vestacp #502 bad gateway #error and different methods to fix this error.

A 502 Bad Gateway indicates that the edge server (server acting as a proxy) was not able to get a valid or any response from the origin server (also called upstream server).

Server software timeouts: This error can also occur when a web server takes more time to complete and a caching tool reaches its timeout values that time. Slow queries can also cause this problem too.'

To fix Error 502 Gateway:

1. Refresh the page.

2. Start a new browser session or load the site on a different browser.

3. Restart your computer and networking equipment.

4. Clear your #cache and cookies.

5. Change your #DNS server.

Add domain in PRTG

This article will guide you on how to add a #domain in the #PRTG #monitoring system.

PRTG is a network monitoring system to monitor a #website.

If you are working in more complex environments or those with a desire to reduce the number of authentication mechanisms on their networks, PRTG includes the option to easily integrate with Active Directory (AD).

1. PRTG additionally adds the probe device to the local probe. This is an internal system device with several sensors. It has access to the probe system and monitors the system's health parameters. 

2. PRTG automatically analyzes the devices that you add and recommends appropriate #sensors on the device's Overview tab.

Security certificate does not specify subject alternative names

This article will guide you on steps to fix #Security certificate does not specify subject alternative names. 

Basically, the #error, Security certificate does not specify subject alternative names trigger if the certificate does not have the correct SubjectAlternativeName extension.

Subject Alternative Names or SANs allow you to secure multiple domains from one SAN SSL certificate. SANs are additional domain names added to an SSL certificate.

To add a Subject Alternative Name to a certificate:

1. If you want to add #SAN, most CAs allow you to reissue a certificate with new details, though this will usually revoke your old certificate. 

2. You don't need the old CSR to reissue a certificate, you can instead create a new CSR with the updated details using a new or existing private key.

The Subject Alternative Name (#SAN) is an extension to the X. 509 specification that allows users to specify additional host names for a single SSL certificate. The use of the SAN extension is standard practice for #SSL #certificates, and it's on its way to replacing the use of the common name.

Restore a database in Alwayson Availability Group

This article will guide you on steps to restore a #database in alwayson availability group.

If you receive an #error that the database is in use, try to set the user to single user mode: USE master; GO ALTER DATABASE Database_name SET SINGLE_USER WITH ROLLBACK IMMEDIATE; Then try the restore with #recovery command again. Also, make sure you are on the latest service pack or cumulative update.

Creating a #SQL #Server AlwaysOn Availability Group.

Open SQL Server Management Studio and connect to the SQL Server instance. Expand the AlwaysOn High Availability folder in the Object Explorer. Right-click on the Availability Groups folder and select the New Availability Group Wizard.

To Restore a Database in a SQL Server AlwaysOn Availability Group:

1. Make the secondary server from which the backups were taken the primary server.

2. Remove the database to be restored from the AlwaysOn Availability Group.

3. Restore the database.

4. Add the database back into the Always Availability Group.

RoundCube CONNECTION FAILED Database Error

This article will guide you on the different methods to fix Database Error: Connection Failed error shows up due to database errors or #PHP #errors. 

Establishing a Database Connection #Error basically means that for some reason or another the PHP code was unable to connect to your #MySQL database to retrieve the information it needs to fully build that page. That's why the error is always shown on a blank page because there is no information about your site as it is not connected to your database.

Establishing a Database Connection Error Occur due to:

1. Incorrect Login Credentials.

2. Corrupt #Database

DirectAdmin Skin or Interface Issues

This article will guide you on different methods to fix #DirectAdmin #skin or #interface issues.
To fix DirectAdmin Skin or Interface Issues:
What if the DirectAdmin skin is corrupted? How to fix DirectAdmin Skin or Interface Issues? Here are some steps you can try.
1. Reinstall skin.
cd /usr/local/directadmin/data/skins/
./packskins.sh
2. Recompile PHP using the following commands.
cd /usr/local/directadmin/custombuild
./build update
./build clean
./build php d
These steps will fix almost every issues with DirectAdmin skin.

Database version or build from backup file

This article will guide you on how to determine the database #version or build from a #backup file.
To know what #SQL version a #database is:
The first is by using either Enterprise Manager or SQL Server Management Studio and right clicking on the instance name and selecting Properties. In the general section you will see information such as on the following screenshots. The "Product version" or "Version" gives you a number of the version that is installed.
In order to find the SQL Server version from a bak file:
1. Here is the output returned by the RESTORE HEADERONLY statement. Here you will see a DatabaseVersion column that contains the value.
2. That's how you find out from which version of SQL Server a given backup file came.

Windows update error 0x80240023

This article will guide you on steps to fix #Windows #update #error #0x80240023 which usually triggers while updating the Windows #system.
When you encounter an error #message, reboot your #machine and try to run the updates again. If you haven't run Windows #Update for some time, then you might have to repeat this process several times before all updates have been installed.
To fix errors on Windows 10:
1. Make sure that your #device has enough space.
2. Run Windows Update a few times.
3. Check third-party #drivers and download any updates.
4. Unplug extra #hardware.
5. Check Device #Manager for errors.
6. Remove third-party security #software.
7. Repair hard-drive errors.
8. Do a clean restart into Windows.

Install WebsitePanel on Windows

This article will guide you on steps to #install #WebsitePanel on #Windows. Also, we saw how to fix some common errors of WebsitePanel.
WebsitePanel began as #DotNetPanel, which its creators made only for the Windows web technology platform as a Windows #hosting panel. The initial DotNetPanel developers contributed a great deal to WebsitePanel. And now #Microsoft has added to their legacy by investing in WebsitePanel’s future.
WebsitePanel is a Multi-Tenant, Enterprise Hosting Automation Tool with support for Private #Cloud Servers. It enables you to centralize the management of your hosting infrastructure and share resources across multiple customer accounts.
1. Save time and money spent on system management.
2. Simplify deployment processes.
3. Administer everything from a single interface.

Azure PowerShell context objects How to manage them

This article will guide you on how to manage #Azure #PowerShell #context #objects. Azure PowerShell context objects are to hold subscription and authentication information. 

Azure PowerShell is basically an extension of #Windows PowerShell. It lets Windows PowerShell users control Azure's robust functionality. From the command line, Azure PowerShell programmers use preset scripts called cmdlets to perform complex tasks like provisioning virtual #machines (#VMs) or creating #cloud services.

To select Azure subscription in PowerShell:

1. Enter Login-AzAccount and hit enter, then provide your user id and password.

2. Get-AzureSubscription (this will give you the list of subscription).

3. Select-AzureRmSubscription -SubscriptionId xxxxx-xxxxx-xxxxxx-xxxx (this way you can set which particular subscription you want to use).

Pros and Cons of Outsourcing Customer Service

In this article, you will see the different pros and cons to #outsourcing #customer #service. However, each case is unique. We should know best if outsourcing customer service could be the right way.

Outsourcing to someone who specialises in delivery of that part of your process, and therefore has up-to-date systems, technology and staff, can improve the quality of that service by reducing costs, improving final output quality or freeing up your internal staff for other roles they could be performing.

However, the flexible solutions allow you to consider the best-case scenario. Consider all possibilities and pick a scaleable, high-quality solution that best fits the business profile.

Benefits of outsourcing customer service:

1. Focus on core tasks.

2. Lower costs.

3. Promote growth.

4. Maintain operational control.

5. Offer staffing flexibility.

6. Provide continuity and risk management.

7. Develop internal staff.

Could not load file or assembly Microsoft ReportViewer WebForms

This article will guide you on ways to resolve Could not load #file or #assembly 'Microsoft.ReportViewer.WebForms' #error occurs when #ReportViewer files are missing from the #bin folder.
You need to reference both Microsoft.ReportViewer.WebForms and Microsoft.ReportViewer.Common and set the CopyLocal property to true. This will result in the dll's being copied to our bin #directory (both are necessary).

Yum http error 416 How to fix it

This article will guide you on steps to fix #yum #HTTP #error 416 which occurs while updating, installing, upgrading packages. This is rectified easily via disabling the delta #rpm problem, reinstalling a #package, clear #caching and so on.
To fix this error:
1. yum clean all
2. yum upgrade --exclude=polkit*
3. reboot
4. yum clean all
5. yum upgrade

Disable Password History in DNN websites

This guide will help to disable password history in #DNN by disabling Enable #Password #History option under the Membership Management tab.
To disable Disable Password History in DNN:
In Host > Host Settings > Advanced Settings > Membership Management, you can disable the history by unchecking "Enable password history".

MySQL BLOB Data Type

This article will guide you on how #MySQL #BLOB data type works in storing and displaying images with #PHP on Ubuntu 18.04. A BLOB is a binary large object that can hold a variable amount of data.
A Binary Large OBject (BLOB) is a collection of #binary data stored as a single entity in a database management system. Blobs are typically images, audio or other multimedia objects, though sometimes binary executable code is stored as a blob.
The four BLOB types are #TINYBLOB , #BLOB , #MEDIUMBLOB , and #LONGBLOB . These differ only in the maximum length of the values they can hold. The four TEXT types are TINYTEXT , TEXT , MEDIUMTEXT , and LONGTEXT .
The size of blob in MySQL:
TINYBLOB - Up to 255 bytes - 1 byte
BLOB - Up to 64 Kb - 2 bytes
MEDIUMBLOB - Up to 16 Mb - 3 bytes
LONGBLOB - Up to 4 Gb - 1 Bytes

Add Glance Cloud images to OpenStack

This article will guide you on steps to add #Glance #Cloud images to #OpenStack with different #Linux distributions which enables users to discover, register, and retrieve virtual machine images. 

After images are created they should be registered in Openstack Glance - #image operation service.

Upload Image Into Glance:

1. Replace <NAME> with the name that users will refer to the disk image by. 

2. Replace <IMAGE_FILE> with the local path to the image file to upload.

Lets encrypt new auth status 429 error

This article will guide you on methods to troubleshoot and fix 429 error which occurs due to creation of multiple #SSL #certificates for a #domain. 

1. 429 means you went over the rate #limits. 

2. You issued 5 certificates in the last week.  This is why you get a #429 answer.

3. You need to wait two days to get another one. do you have access to the certificates you issued?

Windows block remote network access for local user accounts

This article will guide you on ways to #restrict remote network access for a local user account.

To restrict local #accounts in #Windows 10,

Open the Settings app, then select Accounts. Select Family & other users. Scroll down to the Other Users section, then choose Add someone else to this PC. If the new user already has a #Microsoft account, enter the associated #email address, then click Next.

To restrict a Windows user:

1. Select Settings.

2. Tap Accounts.

3. Select Family & other users.

4. Tap "Add someone else to this #PC."

5. Select "I don't have this person's sign-in information."

6. Select "Add a user without a Microsoft account."

Directadmin Unable to write users httpd conf configuration

This article will guide you on how to fix the #error, Unable to write user's httpd.conf in Directadmin which occurs when we try to add a #domain in #DirectAdmin. 

The httpd. conf file is the main configuration file for the Apache web server. It's highly recommended to run Apache in standalone type for better performance and speed. ServerRoot "/etc/httpd" The option ServerRoot specifies the directory in which the configuration files of the Apache server lives.

Before you edit httpd.conf, you should first copy the original file to something like httpd.conf-old, for example. 

By creating a #backup, you can recover potential mistakes made while editing the new configuration file.

Ansible for launching AWS EC2 instances

This article will guide you on how to use #Ansible to launch AWS EC2 instances, security group, and RDS.

First, you're limiting the scope of the playbook to the local #hosts #group. It contains localhost and this is the way Ansible will work with #EC2 instances. Behind the scenes, Ansible connects to Python boto on the local machine and use to establish connection with the AWS #API and issue the necessary #commands.

Then we specify the name of the security group that Ansible will create for us. A security group is like a virtual firewall that must be created for your EC2 instances. If you already have one created, you can associate it with the new EC2 instance. In our case, we’ll be creating a new one from scratch.

Managing files with fs Module in Node js

This article will guide you on various functions that can be performed with fs #Module in Node.js such as reading, writing, and deleting files.

#Node . js includes fs module to access physical file system. The #fs module is responsible for all the asynchronous or synchronous file I/O operations.

To use FS in node JS:

The Node. js file system #module allows you to work with the file system on your #computer. To include the File System module, use the require() method: var fs = require('fs'):

1. Read files.

2. Create files.

3. Update files.

4. Delete files.

5. Rename files.

Cant locate LWP UserAgent pm in @INC

This article will guide you on how to get rid of error "Can't locate LWP/UserAgent.pm in @INC" which occurs in the process of installing #applications like CSF in the DirectAdmin server or any other #Linux #distros. 

libwww-perl (also known as LWP) is a collection of #Perl #modules that provide a simple and consistent programming interface (API) to the World-Wide Web.

In order to install and use this #package you will need Perl version

5.8.1 or better:

Some modules within this package depend on other packages that are distributed separately from Perl.  We recommend that you have the following #packages installed before you install

libwww-perl:

i. Digest-MD5

ii. Encode-Locale

iii. HTML-Form

iv. HTML-Parser

v. HTML-Tagset

vi. HTTP-Cookies

vii. HTTP-Date

viii. HTTP-Message

ix. HTTP-Negotiate

x. libnet

xi. LWP-MediaTypes

xii. MIME-Base64

xiii. Net-HTTP

xiv. URI

xv. WWW-RobotRules


If you want to access sites using the https protocol, then you need to

install the LWP::Protocol::https module from CPAN.

Cloudflare error 504 gateway timeout

This article will guide you on different methods to troubleshoot and fix #Cloudflare 504 gateway timeout error.

The #504 #Gateway #Timeout #error is an #HTTP status code means that one server did not receive a timely response from another server that it was accessing while attempting to load the web page. This usually occurs when one of the two servers is down or not working properly.

To Fix 504 Gateway Timeout Errors:

1. Look for server connectivity issues.

2. Check for any #DNS changes.

3. Sift through your #logs.

4. Fix faulty #firewall configurations.

5. Comb through your website's code to find bugs.

Install InfluxDB on CentOS 7

This article will guide you on steps to Install #InfluxDB on #CentOS 7. You can Turn any InfluxData #instance into a production-ready cluster that can run anywhere. Easily create and share a comprehensive monitoring solution.

InfluxDB is similar to a #SQL #database, but different in many ways. Relational databases can handle time series data, but are not optimized for common time series workloads. InfluxDB is designed to #store large volumes of time series data and quickly perform real-time analysis on that data.

The local InfluxDB configuration file is located here: Linux: /etc/influxdb/influxdb. conf. macOS: /usr/local/etc/influxdb.

To Install InfluxDB:

Option 1 : Download the InfluxDB archive via the browser.

Option 2 : Adding the #repositories to your package manager.

i – Start your InfluxDB service.

ii – Configure your InfluxDB instance.

iii – Test your InfluxDB instance.

iv – #Download InfluxDB 2.0 archive from the website.

Using FreeBSD Single-User Mode to recover from File System Corruption

This article will guide you on how to recover from #File #System #Corruption Using FreeBSD's Single-User Mode.

While #filesystem corruption is never a good thing, it doesn't necessarily mean that all of your important data was lost. The success of your #recovery #operations comes down to a number of factors, such as how quickly the filesystem noticed the corruption, how widespread the issue was, and what files were affected.

Corrupted files are computer files that suddenly become inoperable or unusable. There are several reasons why a file may become corrupted. In some cases, it is possible to recover and fix the corrupted file, while at other times it may be necessary to delete the file and replace it with an earlier saved version.

To fix corrupted files in #Windows 10:

1. Use the #SFC tool.

2. Use #DISM tool.

3. Run SFC scan from Safe Mode.

4. Perform SFC scan before Windows 10 starts.

5. Replace the files manually.

6. Use System #Restore.

7. Reset your Windows 10.

OpenLDAP on Ubuntu Steps to install it

This article will guide you on the steps to #install and configure #OpenLDAP on #Ubuntu.

OpenLDAP is a open source implementation of #LDAP in Linux.

If it's your #server, you will know just by looking at the running services. When you are there, run #netstat and probably you will see LDAP listening only on localhost . Remotely, if the server is listening on #localhost , you cannot know just by running nmap , the port will not answer for the public #interface.

To Install and Configure OpenLDAP on #CentOS / #RHEL #Linux:

1. Install OpenLDAP Packages. On CentOS and RedHat, use yum install as shown below, to install the openldap related packages. 

2. LDAP #Config Files. config. 

3. Create olcRootDN Account as Admin. 

4. Create olcRootPW Root Password. 

5. Create olcSuffix #Domain Name. 

6. Verify The #Configuration Files. 

7. Start the LDAP Server. 

8. Verify the LDAP Search.

Windows System error 5 has occurred Access is denied

This article will guide you on different methods to fix #Windows #System #error 5 has occurred Access is denied which is generally caused by #NTFS permissions, but it can also be caused by other issues like a corrupt user profile, encryption on the file or if the file is in use.

A system error refers to an instruction which cannot be recognized by an operating #system or goes against the procedural rules. A system error code refers to the exact error number with which you can track down the details.

To fix Access is denied message on Windows 10:

1. Take ownership of the directory. 

2. Add your account to the #Administrators group. 

3. Enable the hidden Administrator account. 

4. Check your #permissions. 

5. Use Command Prompt to reset permissions. 

6. Set your account as administrator. 

7. Use Reset Permissions #tool.

How to Install OpenNMS on CentOS 8

This article will guide via a step-by-step procedure to #install OpenNMS in #CentOS. 

OpenNMS is a free, Open Source network monitoring system that can be used to #monitor tens of thousands of unlimited devices with a single #instance.

It will discover and monitor the services or nodes automatically in your #network, or you can assign a particular service to monitor by OpenNMS.

To configure #OpenNMS:

1. Install OpenNMS Horizon. Add yum repository and import GPG key. 

2. Initialize and set up #PostgreSQL. Initialization of the PostgreSQL database will start.

3. Initialize and start OpenNMS Horizon. 

4. First Login and change default password.

How to Install Python on Windows

This article will guide you on steps to install #Python and #PIP on #Windows. If you would like to download and install Python on your #computer you can do for free at python.org.

To install Python on Windows:

1. Select Version of Python to #Install. 

2. Download Python Executable #Installer. 

3. Run Executable Installer. 

4. Verify Python Was Installed On Windows. 

5. Verify Pip Was Installed. 

6. Add Python #Path to #Environment Variables which is Optional.

NFS Data ISO and Export Storage Domain to oVirt RHEV

This article will guide you on steps to add Export Storage #Domain & #NFS #Data to an oVirt/RHEV environment. NFS is the most common protocol for sharing #files between #Unix #systems over a #network. NFS servers export directories from their local hard disks to NFS clients, which mount them so that they can be accessed like any other #directory.

To modify etc #exports:

1. Open the /etc/exports file in a text editor on an NFS client that has root access to the storage system.

2. Make your changes.

3. Save the file.

IPSEC protocol for load balancing

This article will guide you on steps to perform load balancing with #IPSEC protocol. The load balance of IPSEC #protocol allows us to fully access the available bandwidth between IPSEC #VPN sites.

VPN load balancing is a mechanism that is used in order to equitably distribute network traffic among the devices in a virtual cluster.

To configure IPSec.

1. Select. #Network. IPSec Tunnels.

2. Select the. Proxy IDs. tab.

3. Select the. IPv4. 

4. Click. Add. and enter the IP.

5. Enter the. Local. IP address or subnet for the VPN #gateway.

6. Enter the. Remote. address for the VPN gateway.

7. Select the. Protocol. from the drop-down.

8. Click. OK. 

How To Install MariaDB on Ubuntu Focal Fossa

This article will guide you on steps to install #MariaDB from the #Ubuntu #repositories and from the official MariaDB repositories. You can install MariaDB in two different ways.

To install MariaDB on Ubuntu, follow these steps:

1. Update #packages index. sudo apt update.

2. Once the packages list is updated, install MariaDB by issuing the following command: sudo apt install mariadb-server.

3. The MariaDB service will start automatically.

The default data directory for the MariaDB database server is /var/lib/mysql. The configuration file of MariaDB database server is /etc/mysql/mariadb. conf. d/50-server.

Pure-ftpd 530 login authentication failed error on Directadmin

This article will guide you how to resolve Pure-ftpd 530 login #authentication failed #error on #DirectAdmin which occurs as a result of incorrect ownership of pureftp.passwd file or password #database corruption.

While trying to connect to your FTP server hosted by #IIS, you may run into “530 User cannot log in, home directory inaccessible” error. This error occurs whether you are using anonymous access or basic authentication. A sample connection log from an FTP #client: 530 User cannot log in, home directory inaccessible.

To Install Pure-FTPd on Ubuntu 20.04 :

1. Create Atlantic.Net Cloud Server. First, log in to your Atlantic.Net Cloud Server. 

2. #Install Pure FTPd. 

3. Create #FTP User. 

4. Create a Self-signed SSL/TLS certificate. 

5. Configure Pure FTPd to use SSL/TLS. 

6. Connect FTP Server from Client.

How to Set Up Multiple SSLs on One IP With Nginx

This article will guide you on how to set up multiple #SSL #certificates on one #IP with #Nginx. 

To set up Multiple SSL Certificates on a Single IP Using Nginx:

1. Domain names should be registered in order to serve the certificates by SNI.

2. Root Privileges to the server.

3. Nginx should already be installed and running on your #VPS. To #install Nginx: # sudo apt-get install nginx.

4. Make sure that #SNI is enabled in the #server.

Create and Manage User Accounts on oVirt and RHEV

This article will guide you on the steps to Create and #Manage #User #Accounts on #oVirt and RHEV using #PowerShell commands. 

ADMINISTERING USER TASKS FROM THE COMMAND LINE:

1. You can use the ovirt-aaa-jdbc-tool tool to manage user accounts on the internal domain. 

2. Changes made using the tool take effect immediately and do not require you to restart the ovirt-engine service. 

3. For a full list of user options, run ovirt-aaa-jdbc-tool user --help. 

Guide to install Red Hat Enterprise Linux 7 3

This article will guide you on the step by step process to install Red Hat Enterprise Linux 7.3. This involves completing the “Installation Summary” window along with the installation of #VMware #Workstation and creation of a virtual machine.

Red Hat® Enterprise Linux® is the world's leading enterprise #Linux platform. * It's an open source operating system (#OS). It's the foundation from which you can scale existing apps—and roll out emerging technologies—across bare-metal, virtual, container, and all types of cloud environments.

Steps to install MySQL in Docker Container

This article will guide you on the steps to install and configure #MySQL in #Docker #container. MySQL is a well-known open-source relational #database management system and one of the most popular web server solutions. It stores and structures data in a meaningful manner, ensuring easy accessibility. Setting up a database in Docker is simply building a container based on a MySQL #image. 

To Set Up & Configure a MySQL Docker Container:

1. Running a MySQL Docker Container.

2. Installing a MySQL Docker Container.

i. Pull the MySQL Docker Image.

ii. Deploy the MySQL Container.

iii. Connect to the MySQL Docker Container.

3. Configure MySQL Container. Manage #Data Storage.

4. Start, Stop, and Restart MySQL Container.

5. Delete MySQL Container.

Update Ubuntu from 16 04 to 18 04 via command line

This article will guide you on steps to #upgrade #Ubuntu #version.

To update Ubuntu using #terminal:

1. Open the terminal application.

2. For remote server use the ssh command to login (e.g. ssh user@server-name )

3. Fetch update software list by running #sudo apt-get update command.

4. Update Ubuntu #software by running sudo apt-get upgrade command.

5. Reboot the Ubuntu box if required by running sudo reboot.

How to Check Server Load on a Windows Server

This article will guide you on how to check server load in windows. Windows #Task Manager allows users to analyze the server load issues on the #Windows servers.

Load expresses how many processes are waiting in the queue to access the computer processor. This is calculated for a certain period of time, and the smaller the number the better. 

Signs of #Server #Overload includes:

The following signs indicate that your web server has possibly become overloaded: 

Displaying error codes. Your server returns an #HTTP #error code, such as 500, 502, 503, 504, 408, and so on. 

Delaying serving requests.

Apache Maven on Ubuntu Steps to install it

This article will guide you on how to #install #Apache #Maven on Ubuntu. Basically, Apache Maven is a popular build management tool for #Java projects. 

To test The Maven Installation in #Ubuntu:

Run the command mvn -version to check if the maven is installed properly. 

You will see the below description on the command prompt. Maven is installed successfully.

Some Maven #Commands:

1. mvn clean. This command cleans the maven project by deleting the target directory. 

2. mvn compiler:compile. This command compiles the java source classes of the maven project. 

3. mvn compiler:testCompile. 

4. mvn package. 

5. mvn install. 

6. mvn deploy. 

7. mvn validate. 

8. mvn dependency:tree.

SQL Server and create a database on Ubuntu How to install

This article will guide you on how to #install MS SQL on #Ubuntu Server 18.04. 

To Install #Microsoft SQL Server 2017:

1. Visit Microsoft's official SQL Server 2017 download page.

2. Select the edition you want to #download. 

3. Click Download now below your selected edition. 

4. The wizard will prompt you to select an installation type. 

5. On the next page, select a directory for the installation folder.

To connect to the SQL Server using #SSMS:

i. From the Connect menu under the Object Explorer, choose the #Database Engine.

ii. Then, enter the information for the Server name (localhost), Authentication (SQL Server Authentication), and password for the sa user.

iii. Click the Connect button to connect to the SQL Server.

VirtualHost cannot occur within virtualhost section in WAMP

This article will guide on steps to fix #VirtualHost cannot occur within virtualhost section in #WAMP which occurs while we try to add VirtualHost #directive and reconfigure #vhost.

Directory directive works only for filesystem objects (e.g. /var/www/mypage, C:\www\mypage), while Location directive works only for URLs (the part after your site #domain name, e.g. www.mypage.com/mylocation).

To Configure name-based virtual #hosts:

1. Install Apache webserver. Make sure you have installed #Apache webserver. 

2. Create web directory for each host. 

3. Create demo web pages for each host. 

4. Create configuration file for each host. 

5. Enable virtual host configuration files. 

6. Test Virtual hosts.

Steps To Install Spark On Ubuntu

This article will guide you on how to install #Apache spark on a single #Ubuntu system. Apache Spark is a distributed open-source, general-purpose framework used in cluster computing environments for analyzing big data. You will be able to perform basic tests before you start configuring a #Spark cluster and performing advanced actions.

Spark is not a #database so it cannot "store data". It processes #data and stores it temporarily in memory, but that's not presistent storage. It can access data that's in: #SQL Databases (Anything that can be connected using JDBC #driver).

Backup MariaDB Databases to Linode Object Storage with Restic

This article will guide you on how to backup #MariaDB Databases to #Linode Object Storage which helps in restoration in the event of a server fault, a user #error, or a hacking or defacing of #website or #applications.

WordPress Posts Returning 404 Error How to fix it

Are your WordPress posts showing a 404 error? Can't get custom permalinks to work? 

This article will guide you on resolve posts returning #404 error in #WordPress. To fix this #error, login to your WordPress Admin dashboard. In the left-hand menu, go to Appearance -> Theme Editor. On the right side of the screen, you should find a 404 template (404. php file) you have to customize as you want.

The most appropriate way to handle 404 errors on your WordPress site, is by creating a custom 404 error page.

Deploying Kohana PHP application on Debian

This article will guide you on how to deploy Kohana on #Debian. Kohana offers powerful event handling, multiple session drivers, simple database abstraction using #SQL helpers, and libraries that transparently handle external APIs. Its generous BSD license lets developers use and modify the framework to build commercial applications.

The #AppDynamics platform provides full, code-level visibility into the performance of your PHP application built on the Kohana framework. With rapid installation and the most scalable #architecture in the industry, AppDynamics solutions help you deploy your #applications more quickly and with more confidence.

Zabbix Single Sign-On SSO Authentication in Active Directory

This article will guide you on how to set #Zabbix : Single Sign-On (#SSO) Authentication in #Active Directory which helps users authenticate the Zabbix frontpage without entering credentials.
Users and resources are added to the directory service for central management and ADDS works with authentication protocols like #NTLM and #Kerberos. Thus, users that belong to ADDS can authenticate from their #machines and get access to others #systems that integrate with ADDS. This is a form of Single Sign-on.

Using Cron to Automate Tasks on CentOS 8

This article will guide you on the steps to set up #Cron job on #CentOS 8 to help automate #tasks. Cron is a #clock daemon, whose name originates from #Chronos, the Greek word for time. It enables users to automate the execution of #commands, scripts (a group of commands) or programs at specified time intervals.
The simplest way to validate that cron tried to run the #job is to simply check the appropriate log file; the log files however can be different from system to system. In order to determine which log file contains the cron #logs we can simply check the occurrence of the word cron in the log files within /var/log .

Custom Component and Shared Module in Ionic

This article will guide you on how to create custom components and shared modules in Ionic App.
#IonicModule is an #NgModule that #bootstraps an #Ionic #App. By passing a root component, IonicModule will make sure that all of the components, directives, and providers from the framework are imported. Any configuration for the app can be passed as the second argument to forRoot .
To create a shared module and include that new shared module as an import for the page modules that need the header:
shared.module.ts

import { NgModule } from '@angular/core';
import {CommonModule} from '@angular/common';
import {HeaderComponent} from './header/header.component';
import {IonicModule} from '@ionic/angular';

@NgModule({
    imports: [
        CommonModule,
        IonicModule
    ],
    declarations: [HeaderComponent],
    exports: [HeaderComponent]
})
export class SharedModule {}

Then for the home.module.ts
@NgModule({
  imports: [
    CommonModule,
    FormsModule,
    IonicModule,
    SharedModule,
    RouterModule.forChild(routes),  
  ],
  declarations: [HomePage]
})
export class HomePageModule {}

Nagios Authentication and Importing Users with AD and LDAP

This article will guide you on how to integrate #Nagios Log Server with Active Directory or #LDAP to allow user authentication and validation with the Nagios Log Server interface.
Currently by default LDAP traffic (without SSL/TLS) is unsigned and unencrypted making it vulnerable to man-in-the-middle attacks and eavesdropping. After the patch or the windows update would be applied, LDAPS must be enabled with Active Directory.
To Set up Active Directory Authentication using LDAP:
1. Enter the LDAP "Server" and "Port" attributes on the Server Overview tab of the LDAP Users page.
2. Enter the proper base for the Active Directory in the "Base DN" attribute.
3. Set the Search Scope.
4. Enter the Username Attribute.
5. Enter the Search Filter.
6. Verify that the settings are correct by clicking the Verify button.

Process to install Docker on Windows

This article will guide you on the steps to install docker on Windows by setting up a Linux virtual #machine to run as a guest in Windows 10 Home.
Docker Desktop is an easy-to-install application for your #Mac or Windows environment that enables you to build and share containerized applications and microservices. Docker Desktop includes Docker #Engine, Docker CLI client, Docker Compose, Notary, #Kubernetes, and Credential Helper.
You can download #Docker #Desktop for Windows from Docker Hub. This relates to installing Docker Desktop on #Windows 10 Pro, Enterprise, and Education.

How to install Metricbeat on CentOS 7 to Gather Infrastructure Metrics

This article will guide you on the steps to install #Metricbeat and configure the Elastic Stack to collect and analyze system metrics. Metricbeat is configured using a #YAML configuration file. On Linux, this file is located at: /etc/metricbeat/metricbeat. yml. On #Docker, you will find it at: /usr/share/metricbeat/metricbeat.
Both #Filebeat and #Logstash can be used to send #logs from a file-based data source to a supported output destination.

Steps to Edit Sudoers File in Linux Process to get it done

This article will guide you on how to edit #Sudoers File in Linux which involves #root privileges, with a special focus on editing the /etc/sudoers file. You can configure who can use #sudo #commands by editing the /etc/sudoers file, or by adding configuration to the /etc/sudoers. To edit the sudoers file, we should always use the #visudo command. This uses your default editor to edit the sudoers configuration.

Process to install node js Windows

This article will guide you on how to install Node.js and verify its installation. Additionally, you will also learn how to uninstall it. #Node . js is a runtime environment that allows software developers to launch both the #frontend and #backend of web apps using #JavaScript. Although JS underpins all the processes for app assembly, as a backend #development #environment, Node. js, differs from the frontend environment.

Secure Wamp Server How to do it effectively

This article will guide you on the different methods to secure #WAMP Server. Basically, WAMP provides support for #MySQL and #PHP. It can be used in production under condition that you install the secure WAMP #distro and it can run on #Internet and not just #intranet.

Download multiple files simultaneously using cURL

This article will guide you on the process to #download multiple files using curl utility. Curl allows downloading files simultaneously from a remote system.

The curl tool lets us fetch a given #URL from the command-line. Sometimes we want to save a web file to our own computer. Other times we might pipe it directly into another program. Either way, #curl has us covered.

This is the basic usage of curl:

curl http://some.url --output some.file

How to create a new host user in DNN

This guide will help you to create a new host user in #DNN by registering the user from the front end and editing the dbo.Users table of the #database.

DNN (formerly #DotNetNuke) is a web content management system and web application framework based on #Microsoft . NET. The DNN Platform Edition is open source. DNN is written in C#, though it existed for many years as a VB.NET project.

Export data into Excel in Ionic Application using XLSX

This article will guide you on the steps to #export data into excel file using #XLSX.

How do I export #data from angular to excel?

Environment setup involves;

Step 1: Downloading the XLSX Module.

Step 2: Downloading the File-Saver Module.

Step 3: Creating a Download #Excel button.

Step 4: Writing exportexcel() method.

Step 5: HTML #Table from which the data will be downloaded.

How to Secure Django Admin

This article will guide you on the methods to secure #Django admin. You can Deploy your site behind #HTTPS.

Best practices for keeping Django admin secure.

Something less sophisticated like a fake Django admin login screen page django-admin-honeypot.

It is always better for security to deploy your site behind HTTPS. Deploy your site behind HTTPS, it's easy to implement and it's free #Certbot, just choose #software and system and you're ready to go.


Install and Configure Free VMware Hypervisor

This article will guide you on the process to Configure Free VMware Hypervisor, to create a virtual #machine, and install a guest operating system.

“VMware vSphere Hypervisor #VMware #vSphere #Hypervisor is a free product that provides a simple and easy way to get started with #virtualization at no cost.

Install and Secure phpMyAdmin on Ubuntu

This article will guide you on the process to #install #PhpMyAdmin on Ubuntu. PHPMyAdmin allows users to interact with #MySQL through a web interface and makes MySQL #database #management easier.

Installation and Configuration of ClamAV

This article will guide you on the steps to install #Clam #AntiVirus which is an open-source #antivirus tool to detect many types of #malicious #software, including #viruses. 

Install Moodle on Windows Server Steps to do it

This article will guide you on the process to #install, secure, and #configure and #backup #moodle. Moodle is a free online learning management system, or #LMS. 

You can download the #software onto your own web server.

How To Connect to a Redis Database Different ways to do it

This article will guide you on the steps to connect to a #Redis #database using different commands like redis-cli using #commands.

Running redis-cli followed by a command name and its arguments will send this command to the Redis instance running on localhost at port 6379. You can change the host and #port used by redis-cli, just try the --help option to check the usage information.

Configure Jenkins with SSL using an Nginx

This article will guide you on how to configure #Jenkins with #SSL using an #Nginx reverse proxy. It is important to secure Jenkins with SSL to protect passwords and sensitive data transmitted through the #web interface.

YUM History command Ways to use it

This article will guide you on #YUM history #command in #Linux which provides a detailed history of YUM #transactions in order to find out information about installed packages and those that where removed/erased from a #system. 

The yum history command allows users to review information about a timeline of Yum transactions, the dates and times they occurred, the number of packages affected, whether transactions succeeded or were aborted, and if the RPM #database was changed between transactions.

Repair EFI GPT Bootloader on Windows 10

This article will guide you on different methods to repair #EFI / #GPT #bootloader on the #Windows server. You can use Use #diskpart #command.

Install Jenkins on Ubuntu 18 04

This article will guide you on the steps to install #Jenkins on #Ubuntu 18.04 which involves installing it from Ubuntu #packages or can download and install its WAR file.

Jenkins is a Java-based open source #automation server that helps to repetitive technical tasks.

Migrate data from Amazon S3 to DigitalOcean Spaces with rclone

This article will guide you on the steps to perform migration of data from #amazon #s3 to #DigitalOcean spaces. #Migration of #data is the primary task which #Website Administrators use for shifting from one object #storage service to another.

ifconfig centos 7

This article will guide you on the steps to #install #ifconfig in #CentOS using the yum #package #manager.

The ifconfig command can tell you a lot about your Unix server's connection to your #network and the role it's playing in both generating and receiving network traffic.

Restrict anonymous login and ban IP address of attacker Windows

This article will guide you on the steps to Restrict anonymous login and ban #IP address of attacker by using Local Group Policy Editor in #Windows which allows us to prevent anonymous login and #IPBan helps to ban IP of #attacker. 

cURL 18 transfer closed with outstanding read data remaining

This article will guide you on the steps to fix cURL error 'cURL 18 transfer closed with outstanding read data remaining' which occurs while retrieving data from a #URL using a #cURL.

This #error can be fixed by correcting the permission of #directory '/var/cache/nginx'

Install Prometheus Network Monitoring Server on CentOS 7

#Prometheus collects metrics from targets by scraping 3metrics #HTTP endpoints. Since Prometheus exposes #data in the same manner about itself, it can also scrape and monitor its own health. 

This article will guide you on the steps to perform #installation of Prometheus on #CentOS 7 along with the method used for the #setup.

Outlook PST file Cannot Be Opened

This article will guide you on the steps to solve #Outlook error "Outlook #PST cannot be opened" by applying different methods.

Steps to Install Pure-FTPD on Ubuntu 18.04 LTS Server

#Pure-FTPd is a fast, production-quality, standard-conformant #FTP (SSL/TLS) server, based upon Troll-FTPd.

This article will guide you through the processes to install Pure-FTPd on your #Ubuntu server.

Implementing Post and Get data with Native HTTP Plugin

This article will guide you on the steps to implement post and get data with the Native HTTP plugin.

Plesk Onyx vs Obsidian

This article will guide you about the idea of upgrading Plesk to Obsidian which is worth it and always better to stay updated.

247 hosting remote support

24/7 hosting support is offered by every web host these days. But very often poorly implemented support operations does more damage then good. Today we’ve seen how you can stand out from the crowd by delivering 24 hour personalized phone support that gives you a powerful marketing edge, and doesn’t cost you a lot of money.

Install ioncube on Directadmin control panel

This article will guide you on the steps to set up the Ioncube loader and fix DirectAdmin Ioncube errors such as incorrect timezone and misconfiguration in the php.ini file which cause errors after installing the Ioncube loader in DirectAdmin.

Instance limit exceeded error in aws Steps to fix it

This article will guide you on the steps to fix instance limit exceeded error in aws which occurs when trying to launch a new instance or restart a stopped instance thereby triggering the InstanceLimitExceeded error. It generally happens when the default limit of instances per region exceeds.

Transfer FSMO roles to another Domain Controller

This article will guide you in the process of transferring and seizing FSMO Roles to Another Domain Controller. 

Outlook error 0x80040600 Steps to fix it

This article will guide you on the steps to run scanpst or Inbox Repair tool to fix corrupt pst file as well as creating a new pst file to get away from the problematic pst permanently.

WordPress Not Sending Email error

If you're experiencing issues with WordPress failing to send emails – for example, sending forms or other communications – it's usually due to problems with your server configuration. 

If your WordPress email is not being sent, switch over to SMTP (Simple Mail Transfer Protocol) instead.

WordPress has several SMTP plugins you can use to force any FROM address you like.

This is important for two major reasons: 

i. It allows you to send email directly through your mail server as opposed to the web server. 

ii. It allows you to send email FROM another email host.

One major reason why this happens is that webhost disable the PHP Mail function because it is very easy to exploit by spammers and hackers.

When WordPress wants to send emails, it calls on the email server in your webhost using the PHP Mail function, but if this function is disabled by your webhost, your requests to send emails will not even get to your mail server.

WordPress fails to send email as a result of the SMTP server on the underlying operating system not being configured properly. 

Proper configuration includes using authentication, configuring the basic SMTP server settings, and following best practices when setting up SPF records, and so on.

This article will guide you on the method to fix WordPress not sending email issue.

WordPress 500 Internal Server Error

This article will guide you on the different methods to fix internal server error 500 in WordPress.

Install Squid Proxy on CentOS 7

This guide will show you the steps to install squid on Centos 7 as well as configure the port and adjusting the access control list.

Install DHCP Server Client on Centos

This article will guide you on the steps to install and configure a DHCP server on CentOS 8.

Working with Docker logs All you need to know

This article will guide you on how to start using docker logs efficiently.

Set up LDAP Client on Ubuntu

This article will guide you on the steps to set up LDAP client on Ubuntu.

How to install PHP on Windows

This tutorial will guide you on the process to install PHP on a Windows server which allows you to build and test a web application safely without affecting the live website data.

Cleanup tasks with Docker How to run it quickly

This tutorial will guide you on how to perform cleanup tasks with Docker which involves keeping the Docker clean to solve the server space issue that is especially important when Docker is running as a virtual machine.

How to access VMFS Datastore from Linux Windows and ESXi

This tutorial will help you on the process to access VMFS datastore from Linux, Windows, and ESXi.

Steps to convert htaccess to NGINX

This tutorial will guide you on how to convert htaccess to nginx directives by keeping the directives within the server block while converting the .htaccess rewrite rules to NGINX rewrite directives.


Configure Postfix as a Send Only SMTP Server

This article will guide you on how to perform configuration of Postfix as a Send Only SMTP Server which involves a series of steps that include installing postfix and modifying the configuration file.

Search message tracking logs on Exchange 2016

This article will guide you on the different ways to search the message tracking logs by using the Get-MessageTrackingLog cmdlet in Exchange 2016.

Nginx 502 bad gateway

This article will help to fix Nginx 502 Bad Gateway which generally occurs when Nginx runs as a reverse proxy, and is unable to connect to backend services due to service crashes, network errors, and configuration issues.

Windows Server error The disk is offline because of a policy set by an administrator

This article will help to fix Windows Server error : The disk is offline because of a policy set by an administrator which relates to SAN Policy

Create and Manage Distribution Lists on Zimbra Mail Server

This article will help to create and manage distribution lists used to send an e-mail to groups of people without having to enter each recipient's individual address.

Setting up Microsoft Outlook for Zimbra

This article will guide you on the steps to configure Microsoft Outlook to connect to the Zimbra email server for sending and receiving emails.

BSOD Error 0x0000007B on Boot on Windows Server 2008 R2 How to fix

This article will guide you on how to fix Windows error 0x0000007B which generally occurs due to a number of reasons like issues with device drivers , viruses, and data corruption.

Secure Password Policy on Zimbra How to configure

In summary, Zimbra does not enforce any strong password requirements for a user account. This poses a risk of the account being compromised and ultimately used for spamming. This article will help to configure Secure Password Policy on Zimbra.

Configuring Static IP and Hostname in FreeBSD 12 Steps to take

This article will guide you on how to configure network settings in FreeBSD by setting static IP addresses and DHCP addresses.

Install Nagios XI in an offline environment

This article will guide you on how to install Nagios XI in an offline environment using powershell.

How to install PgAdmin 4 on Debian 10

This article will guide you on how to install PgAdmin in Debian.

PuTTY Fatal Error Connection timed out

This article will help to fix "PuTTY Fatal Error: Connection timed out" which occurs when the IP address of the host and virtual machine does not belong to the same subnet.

Ways of using SQL with Microsoft Access

This article will guide you on how to Use SQL with Microsoft Access.

PHP-FPM performance tuning for high traffic website

This article will help to solve high load issue due to PHP-FPM service in order to boost web server performance.

HAProxy Network Error cannot bind socket

This article will guide you on how to fix HAProxy Network Error "cannot bind socket" which results from different reasons.

How to fix corrupt Exchange mailbox

Basically, here is a complete guide on how to fix Corruption of Exchange server mailboxes  which occurs when a client incorrectly updates MAPI flags while processing the mailbox folder elements.

phpIPAM installation on CentOS

This article will guide you on how to install phpIPAM on CentOS 8.

PhpMyAdmin installation on Debian

This article will take you through the steps you need to take to install, Configure and Secure phpMyAdmin on your Debian 10 Server.

Splunk Forwarder Installation on Ubuntu

This article will show you the steps to take to install and configure Splunk forwarder on a Linux Machine (Ubuntu , Debian).

MongoDB remote access configuration for Ubuntu

This article will guide you through the steps you can take to configure remote access for MongoDB on Ubuntu 18.04.

How to use ADUC MMC to process queries in Active Directory user and Computers

This article describes how to use saved queries in relation to Active Directory Users and Computers (ADUC) which is a MMC snap-in for managing Active Directory.

How to enable SSH access on DirectAdmin

This article will help you know the best method to enable ssh access for a user in DirectAdmin control panel and also fix common issues encountered while creating a user to use with SSH.

Using phpMyAdmin to manage Databases

With phpMyAdmin, the administration of the database is made easy by its user friendly interface.

ioncube installation in Directadmin control panel

Steps taken to get ioncube loader installed in a Directadmin control panel.

Easy way to fix connection timed out error during http-01 challenge propagation in Kubernetes

Best fix to "Connection timed out" error during http-01 challenge propagation.

How to fix No matching DirectoryIndex Apache Error

Steps to fix  "No matching DirectoryIndex"  Apache web server error.

Solution to unable to write random state openssl error

Best methods to fix "unable to write random state" OpenSSL error.

How to solve exchange server 507 Insufficient storage error

Best Method to fix (507) Insufficient Storage error in Exchange remote server.

Solution to an error has occurred with AWS Config

Easy way to fix an error has occurred with AWS Config.

Solve Apache error AH01276 Cannot serve directory

The solution to Apache server error No matching DirectoryIndex is here in this Article.


Solve 403 Forbidden permission error in Xampp server

We have dealt with server permission related server bugs for numerous customers as part of our Server Support Services.

Solve phpMyAdmin Timeout error 1440 session

We have dealt with numerous cases of MySQL and phpMyAdmin Errors and support request from our customers regarding Databases related errors as part of our Linux Support Services.

Fix SQL Error 1046

Here at IbmiMedia, We continue to see rising cases of clients seeking support on how to solve SQL related errors as part of our Linux Support Services. This error happens when a database is not selected correctly.

Method to fix Cloudflare error 527

When a #connection is interrupted between Cloudflare data center and an origin #Railgun server(rg-listener), thus a #Cloudflare error 527 will occur. This is influenced by loss of #packet data or a #firewall restriction in this situation.

Fix MySQL error code 1054

MySQL error code 1054 occurs when you forget to add single quotes while inserting a varchar value or due to any missing column.

Errors in the database of a website can be very frustrating especially if you have got a high traffic website and it leads to loss of customers and money as your they will turn away from your site since this type of errors affects the whole website in general.

Method to upgrade MySQL in VestaCP

It is very important to upgrade your OS MySQL database to the latest version so as to keep the system more secured and to enjoy the latest features.

Change the IP Address in Ubuntu - Step by step guide ?

This article covers the basic overview of IP addresses, their types, and the contrast between the IPv4 and IPv6 protocols.

Install Remmina Desktop Client on Manjaro Linux - Step by step guide ?

This article covers the installation process of Remmina Desktop Client on Manjaro Linux. In fact, Remmina is a remote desktop client written in GTK+, aiming to be useful for system administrators and travellers, who need to work with lots of remote computers in front of either large monitors or tiny netbooks.

Install Zenity on Linux Mint 20.3 - Step by step guide ?

This article covers the installation procedure of Zenity on Linux Mint 20.3. In fact, zenity is Display dialog boxes from shell scripts.

Install Flameshot on Manjaro Linux 20 - Step by step guide ?

This article covers how to install Flameshot on Manjaro Linux 20.

Install MythTV on Linux Mint 20.3 - Step by step guide ?

This article covers how to easily install MythTV application on a Linux Mint 20.3 system.

Install the ManageEngine OpManager on Ubuntu 20.04 - Step by step guide ?

This article covers the process of installing ManageEngine OpManager on Linux, accessing the OpManager dashboard through browser and starting OpManager as a service. In fact, ManageEngine OpManager is a powerful network monitoring solution that let you manage your network devices and servers through an integrated console.

Adding a Printer to Ubuntu 21.10 system - Step by step guide ?

This article covers how to easily attach a printer to your Ubuntu (Linux OS) to ease the lives of Linux users. In fact, A printer is a hardware device that is commonly used to convert the softcopy of a particular document to a hardcopy. It is now commonly used in offices, schools, and homes. Printers have made many things easier for the average person.

Install Mozilla Thunderbird application on Manjaro Linux 20 - Step by step guide ?

This article covers how to install Thunderbird on our Manjaro Linux system. In fact, Thunderbird is a free and open source email, newsfeed, chat, and calendaring client, that's easy to set up and customize.

Check the IP Address in Ubuntu 21.10 Impish Indri

This article covers the basic overview of IP addresses, their types, and the contrast between the IPv4 and IPv6 protocols.

Format USB in Ubuntu 21.10 Impish Indri

This article covers how to format a USB drive to wipe out its data and fix problems in Ubuntu Linux system. In fact, You can use any method either the command line or the graphical methods (GParted utility or File Manager) for formatting a USB drive.

Python Comparison Operators - Explained with examples

This article covers Python Comparison Operators explained with examples. In fact, Python Comparison Operators compare two operands and return a boolean value based on the comparison made.

Install UNetbootin on Linux Mint 20.3 - Step by step guide ?

This article covers the procedure of installing the Universal Netboot Installer on a Linux Mint 20.3 system. In fact, you will be able to create live USBs of your desired operating systems.

Find the MAC Address in Ubuntu 21.10

This article covers the basic overview of MAC-address and how to find it in Ubuntu. In fact, A MAC address is the unique identifier that is assigned by the manufacturer to a piece of network hardware (like a wireless card or an ethernet card). MAC stands for Media Access Control, and each identifier is intended to be unique to a particular device.

Install Discord on openSUSE Leap 15 - Step by step guide ?

This article covers how to install the Discord application on openSUSE OS via different methods. In fact, Discord is a free voice, video, and text chat app used by tens of millions of people ages 13+ to talk and hang out with their communities and friends.


RAM required to run Linux Mint 20.3 ?

This article cover how to know the RAM requirements for running a Linux Mint 20.3 system. In fact, Linux Mint 20.3 comes with updated software and brings refinements and many new features to make your desktop even more comfortable to use.


Linux Mint 20.3 "Una" MATE System requirements:

  • 2GB RAM (4GB recommended for a comfortable usage).
  • 20GB of disk space (100GB recommended).
  • 1024×768 resolution (on lower resolutions, press ALT to drag windows with the mouse if they don’t fit in the screen).

Install FortiClient VPN on Ubuntu 20.04 LTS - Step by step guide ?

This article covers how to install FortiClient VPN on Ubuntu 20.04 LTS. In fact, FortiClient is a security solution designed to reduce your computer's vulnerability. However, the FortiClient user interface itself only contains the vulnerability scan and a tab in which you can set up a VPN connection for remote access.

Verify Linux Mint 20.3 ISO - How to do it ?

This article covers the procedure of verifying the Linux Mint 20.3 ISO. In fact, It is recommended to download the latest version ISO file to avail benefits of latest features and check the downloaded Linux Mint ISO for errors before installing the OS.

The ISO image File of latest version should always be downloaded from the official website of Linux Mint Operating System https://linuxmint.com. In some cases, it may be possible that the ISO file may be corrupted while downloading or it may have been tampered while the file was being downloaded over network, or it may be possible that you have sourced the ISO file from some other unreliable source. In any case, the user must assure himself that the ISO you are using is error free and authentic i.e. exactly the same copy as provided by Linux Mint.


What is Integrity and Authenticity in Linux Mint?

  • Integrity: Integrity means that the ISO image file was properly downloaded and that the local file is an exact copy of the file present on the download servers. An error during the download could result in a corrupted file and trigger random issues during the installation.
  • Authenticity: Authenticity means that the downloaded ISO image was signed by Linux Mint, and thus it isn’t a modified or malicious copy made by somebody else.

Run Linux Mint 20 in Virtual Box - How to do it ?

This article covers the process of running Linux Mint 20 in a virtual box. In fact, As VirtualBox supports Windows, MAC, and Linux, you can virtualize Linux mint irrespective of the operating system that you have, because you can run VirtualBox and virtualize Linux mint with it. 

Install Google Earth Application on Debian 11 Bullseye system - Step by step guide ?

This article covers how to easily install, launch, configure, and remove the Google Earth on Debian 11. In fact, Google earth is a great tool, providing a 3D representation of our earth primarily using satellite imagery. It basically renders a 3D model map, covering the entire world.


Google Earth main features include:

  • Digital globe.
  • 3D building models.
  • Street view.
  • Zoom below the water surface.

Install LogSeq on Debian 11 Bullseye Using AppImage - Step by step guide ?

This article covers the installation of a portable Linux application on Debian 11 desktop. In fact, Logseq is an application to create notes, knowledge graphs and more. In addition we can use existing Markdown or org mode files to simply edit, write and save any new notes.


Features of Logseq:

  • Markdown Editor.
  • Org-mode File Support.
  • Backlink.
  • Page and block references (link between them).
  • Page and block embed to add quotes/references.
  • Support for adding tasks and to-do lists.
  • Ability to add tasks as per priority or by order A, B, C..
  • Publish pages and access it using localhost or GitHub pages.
  • Advance commands support.
  • Ability to create a template from your existing resource to re-use it.
  • Page alias.
  • PDF highlights.
  • Create cards and quickly review them to memorize things.
  • Excalidraw integration.
  • Zotero integration.
  • Add a custom theme by simply creating a custom.css file. There are available community-made files for quick use as well.
  • Custom keyboard shortcuts.
  • Ability to self-host Logseq.
  • Cross-platform support.

Which Linux Mint Desktop Editions Should I Use ?

This article covers the different flavours of Linux Mint to use. If you wish to experience all the features of Linux Mint 20.3, then you must go for the Cinnamon edition. If you prefer to have a lightweight operating system without compromising on the important features, then, you should download the Mate edition. If you are ready to make a compromise on some of the features of the operating system but want to have a fast and stable release, then, without a doubt you should choose the Xfce edition. However, if you are still confused about which flavor of Linux Mint 20.3 will be best for satisfying your needs, then you should start from the Cinnamon edition and try using all the editions one by one. After that, you can stick to the one that you like the best.

Install Foxit Reader on openSUSE Leap 15.3 - Step by step guide ?

This article covers how to install Foxit Reader on openSUSE. In fact, Foxit Reader Provide authors with comments on documents, be notified when new document versions become available, discuss interesting topics right in the document, or securely open protected documents.

Use Linux Mint 20 - Step by step guide ?

This article covers how to perform basic and important activities on your Linux Mint 20.3 system.


Main Features in Linux Mint 20.3:
  • The Updated Cinnamon 5.2 Desktop: The first thing about Una, which grabs your attention, is the freshly deployed Cinnamon 5.2 desktop.
  • User Interface Enhancements: The new dark mode beautifully pairs the dark headers of each interface with lighter, contrasting windows. You will notice how the window layout and control buttons have more dimensions to provide straightforward navigation.
  • Application-Specific Improvements: Una has a brand new XApp in store for you, called Thingy. It's a PDF reader that comes bundled with Linux Mint as the default document management application. It offers excellent library management facilities and helps track your e-reading progress.
  • Miscellaneous Improvements: Some other worthy features, which are miscellaneous add-ons to the existing repertoire of features, include some pretty nifty improvements for the end-users.

Install Oracle VM VirtualBox on Manjaro 21.2.4 Qonos Linux system - Step by step guide ?

This article covers how to install Oracle VM VirtualBox on Manjaro Linux. In fact, VirtualBox is open-source cross-platform virtualization software for x86 architecture and this software allows you to create and run guest operating systems ("virtual machines") such as Linux and Windows on top of the host operating system.


Main features of VirtualBox Guest Additions includes:

  • Shared folders: These provide an easy way to exchange files between the host and the guest.
  • Mouse pointer integration: Provides seamless mouse support. You’ll no longer need to press the Host key to free the mouse from being captured by the guest OS
  • It provides better video support: The video resolution in the guest will be automatically adjusted, as if you had manually entered an arbitrary resolution in the guest's Display settings
  • Seamless windows: With this feature, the individual windows that are displayed on the desktop of the virtual machine can be mapped on the host's desktop, as if the underlying application was actually running on the host.
  • Time synchronization: With the Guest Additions installed, Oracle VM VirtualBox can ensure that the guest's system time is better synchronized with that of the host.
  • Shared clipboard: With the Guest Additions installed, the clipboard of the guest operating system can optionally be shared with your host operating system
  • Automated logins: The Guest Addition modules enable automated logins on the guest.

How Much Space Does Linux Mint Need ?

This article covers how you will instantly get to know the space requirements for installing Linux Mint 20.3 on your machine. In fact, After making the said space arrangements, you will be good to go with the installation of Linux Mint 20.3 on any of your target machines.

Download Linux Mint 20.3 - Step by step guide ?

This article covers how you can easily download Linux Mint 20.3 on your system. In fact, Linux mint is a favorite Linux distribution used by number of users in the Open Source space, schools and some private institutions.


Install LAMP in Ubuntu 20.04 - Step by step guide ?

This article covers how to install LAMP on Ubuntu 20.04 and run the Apache module of the PHP. In fact, PHP code can be executed via the Apache web server; PHP module of Apache and PHP-FPM.

Different ways of Updating Ubuntu 20.04 / 18.04

This article covers the concept of keeping your Ubuntu system updated. You can either Update Ubuntu via the command line or via the Software Updater GUI tool.

Install Spotify Via Snap Store on Linux Mint 20 - Step by step guide ?

This article covers how to install Spotify on our Linux Mint 20.2 machine.

Display Data from a Text File in Ubuntu Linux

This article covers the different ways of extracting the text from text files and displaying them on the terminal like displaying data from a text file using cat, nl, less, more, head, tail, and misc. In fact, Text files are files that are used to store information. We need to configure text files daily, for this we want to display the content of text files.

Install Python on Linux Mint 20 - Step by step guide ?

This article covers how you can install Python 3.9 on your Linux Mint system. In fact, Python programming language can help in solving your programmatic problems.


Main features of Python includes:

  • It can be used on a server to create web applications.
  • It can be used alongside software to create workflows.
  • It can connect to database systems. It can also read and modify files.
  • It can be used to handle big data and perform complex mathematics.
  • It can be used for rapid prototyping or production-ready software development.

Install Chrome on Debian 11 - Step by step guide ?

This article covers how to install Google Chrome on Debian 11 Bullseye. In fact, Google Chrome is a cross-platform web browser developed by Google. It was first released in 2008 for Microsoft Windows, built with free software components from Apple WebKit and Mozilla Firefox. It was later ported to Linux, macOS, iOS, and Android, where it is the default browser.


How to Update Google Chrome ?

To update Google Chrome, run the APT update command in your terminal:

$ sudo apt update

If one is available, use the upgrade option:

$ sudo apt upgrade google-chrome-stable

Install Microsoft Teams on openSUSE - Step by step guide ?

This article covers the installation of Microsoft Teams on the openSUSE system. In fact, Using either the repository or the snap package manager, you can easily install Microsoft Teams on your openSUSE.


Why use Microsoft Teams?

  • Meetings in groups make this process a lot easier. You may start conversing with the attendees about the agenda as soon as you create the meeting, exchange the files you need them to review, and keep track of the meeting notes and to-dos as soon as you create the meeting.
  • You no longer have all the email-on-email responses, which are often delivered as a Reply All, because discussions are now held in a structured way in your Teams.
  • The call recording is immediately available in the same tab, so you don’t have to look for it if you missed the meeting. It’s right there, along with the meeting minutes and agreed-upon tasks.
  • In Teams, you may use the chat box to have brief conversations with your coworkers.
  • You can access all of your apps and documents right away with the Teams phone app.
  • In Teams, you can create a Word, Excel, or PowerPoint document, share it with your teammates right away, and then co-author it in the single glance.

Upgrade from Ubuntu 20.04 to Ubuntu 22.04 - Step by step guide ?

This article covers how to successfully upgrade from Ubuntu 20.04 Focal Fossa to Ubuntu 22.04 Jammy Jellyfish. In fact, Ubuntu 22.04 LTS Jammy Jellyfish is due to release on April 21, 2022. However, users of Ubuntu 20.04 and Ubuntu 21.10 are able to upgrade to the latest release right now.

Install AnyDesk on openSUSE 15.3 system - Step by step guide ?

This article covers how to install AnyDesk remote desktop application on openSUSE system. In fact,  you can easily set up the AnyDesk remote desktop application on your system.

Install Steam on Linux Mint 20.3 - Step by step guide ?

This article covers how to easily install steam on Linux Mint 20.3. In fact, Once this platform will be installed on your system, you will be able to play thousands of games on the go.

Upgrade from Linux Mint 20.2 to Linux Mint 20.3

This article covers how you can easily upgrade from a Linux Mint 20.2 virtual machine to Linux Mint 20.3.In fact, Linux Mint has dubbed the new 20.3 release with the codename Una, the third major upgrade in the Linux Mint 20 series, which most would know is based on Ubuntu 20.04 LTS Focal Fossa distribution that will be supported until 2025.

One of the more exciting things in this upgrade is dark mode support Celluloid, GNOME Terminal, Hypnotix, Pix, and XViewer applications in Cinnamon and MATE. Still, XFCE will not feature dark mode support Pix and XViewer due to the Xfwm window manager not supporting it.

Install BasKet on Debian 11 - Step by step guide ?

This article covers how to install basket on Debian 11. In fact, BasKet provides as many baskets (drawers) as you wish; Several kinds of objects (texts, URLs, images,…) can be drag-n-drop'd into it.

Install xArchiver on Debian 11 - Step by step guide ?

This article covers how to install the xArchiver application on Debian 11 Linux system. In fact, Xarchiver is a lightweight desktop independent GTK+ frontend for manipulating xz, 7z, lzma, arj, bzip2, gzip, rar, tar, zip, rpm, lz4, compress, zstd, lzip, lrzip, lzop, lha, ar files including the deb format and self-extracting exe files, if they were internally compressed with either 7zip, arj, lha, rar or zip.

Install Ubuntu 22.04 on Virtual Box - Step by step guide ?

This article covers the Step by step installation of the Ubuntu 22.04 server in a virtual box. In fact, Installing Ubuntu on VirtualBox as a Virtual Machine (VM) enjoys many benefits – you can preview and rule out changes to a better VM mode if something goes awry, lend a VM, create a VM to more effective (all VM information is removed as a bunch of documents), or run a VM on most hosting systems supported by VirtualBox. 

Install Scala Compiler on Linux Mint 20.02 - Step by step guide ?

This article covers how to install the Scala compiler on your Linux Mint 20.02 machine. In fact, After installing this compiler, you will be all set to write codes using the Scala programming language. It includes modern language features such as closures, pattern-matching, parametric types, and virtual type members.

Install and Use Nano Editor on Ubuntu 20.04

This article covers how to install and use of the Nano Text Editor on your Ubuntu Linux system. In fact, Nano is a modeless text editor with a lot of useful features. It enables you to generate and modify a variety of files on Linux-based devices and servers. It is thought to be the most user-friendly editing tool. Nano is a text editor that is appropriate for both novice and experienced users.

Install Anaconda on Ubuntu 20.04 - Step by step guide ?

This article covers how to install and use Anaconda on your Ubuntu system. Anaconda is a free and open-source Python and R programming language distribution. The Python interpreter is included, as are several data science and machine learning packages.

Install Pycharm on Debian 11 - Step by step guide ?

This article covers the different ways to install Pycharm on Debian 11 BullsEye. In fact, PyCharm is a dedicated Python graphical IDE (Integrated Development Environment) popular amongst Python developers with its wide range of essential tools such as analyzing code, debugging, and integration. 

Upgrade from Linux Mint 20 to Linux Mint 20.02 - Step by step guide ?

This article covers the process of upgrading from Linux Mint 20 to Linux Mint 20.02. It is now possible to upgrade Linux Mint 20 and 20.1 to version 20.2.

Install TeamViewer on openSUSE Leap 15.3 - Step by step guide ?

This article covers how to install TeamViewer on the openSUSE machine through the .rpm package and also how to run TeamViewer on openSUSE without installation. In fact, TeamViewer is a cross-platform application that enables an user to control remote computers over the internet or network.

Install Nginx on Ubuntu 20.04 LTS Using Source Code - Step by step guide ?

This article covers how you can easily install Nginx on your Ubuntu server. In fact, Nginx is used for security and load-balancing, but can also function independently as a web server. 

It was created on 4 October 2004 by Russian developer Igor Sysoev as he was frustrated with Apache web server and wanted to build a replacement capable of handling 10,000 concurrent connections with a focus on performance, high concurrency, and low memory usages.


How to Enable NGINX on Boot ?

So to enable start-up on boot, run this command:

$ systemctl enable nginx

So we get confirmation of a start-up, symlink being created for this service.

The 7 Best Free and Open-Source Lead Management Software

This article covers the best lead management software which streamlines the processes and stages of leads till closing them and managing for the team speedily and accurately. It includes Pipedrive, Salesflare, Monday.com, SalesRabbit, ExtraaEdge, OneHash and ClinchPad respectively. 

The Best 7 Free and Open-Source Emergency Notification Software

This article covers the 7 best, free, and open-source emergency notification software that empowers companies and guides them in ensuring the security and safety of their employees, teams, and relevant stakeholders. The mentioned platforms are Alert Media, RedFlag, DeskAlerts, Klaxon, Omnigo, Squadcast and Sahana EDEN respectively.

The Best 6 Free and Open-Source Gym Management Software

This article covers the best 6 free and open-source gym management software solutions in this article that empowers and uplifts gym businesses with all the powerful tools and features embedded in the software along with streamlining the daily and routine tasks to deliver the best services to the gym members and stakeholders. They include Glofox, Exercise.com, TeamUp, bsport, PT Distinction and OpenStudio. 

Different methods of Checking MySQL Version in Linux

This article covers the ways to check the MySQL version in Linux. In fact, MySQL (and its drop-in replacement MariaDB) is the most popular open-source relational database management system. There are some important differences between MySQL versions, so knowing which version is running on your server might be important in some situations.


How to Check MySQL Version with V Command ?

The easiest way to find the MySQL version is with the command:

$ mysql -V

The command mysql –V is not OS specific. This command works on Windows, OS X, and Linux distributions including Ubuntu.

Deploy Redis on Rocky Linux 8 - Step by step guide ?

This article covers how to install and configure Redis on Rocky Linux 8. In fact, Redis is a popular and open-source in-memory key-value data store. It supports various data structures such as Hash, Lists, Sets, Strings, and much more. 

Speed up Google Chrome - Step by step guide ?

This article covers how you can easily speed up your Google Chrome browser and hence enhance your browsing experience to the fullest.


How to Turn off or stop unwanted processes on Google Chrome ?

Extensions are small programs you can add to Chrome on your computer that let you do more. If you're not using all your extensions, you can turn them off to speed up Chrome:

  • On your computer, open Chrome.
  • At the top right, click More More and then More tools and then Extensions.
  • Turn off or remove the extension.


How to make Chrome open pages faster ?

You can turn on network action predictions ("page prefetch") to make Google Chrome open webpages faster. When the setting is on, Chrome preloads the links you might open:

  • On your computer, open Chrome.
  • At the top right, click More More and then Settings.
  • Click Privacy and security and then Cookies and other site data.
  • Turn on Preload pages for faster browsing and searching.

Install Microsoft Teams on Debian 11 Bullseye - Step by step guide ?

This article covers how to install Microsoft Teams on Debian 11 Linux system. In fact, Microsoft Teams is a proprietary business communication platform developed by Microsoft and is a collaboration application built for chat, calling, collaboration, and meetings all in one place to make it easier for teams to stay organized and connected easier than using several other communication platforms separately. 


How to Update Microsoft Teams on Debian?

Run the standard update commands for future updates for Teams and any default APT packages:

$ sudo apt update

When updates are available, run the standard upgrade command as you would with any other APT available updates:

$ sudo apt upgrade

Install Skype on openSUSE Leap 15.3 - Step by step guide ?

This article covers how to install Skype on openSUSE Linux System. In fact, you can also look at some alternatives of Skype such as Slack, Microsoft Teams, Zoom, Zimbra, Nextcloud, etc.

openSUSE Linux OS Version - How to find it ?

This article covers the different ways of checking your openSUSE version. 


Steps to to find openSUSE Linux version:

  • Open the terminal application.
  • For remote SUSE server use the ssh command.
  • Now type cat /etc/os-release to display OpenSUSE/SUSE Linux version.
  • You can also use the lsb_release -a to figure out which version of the openSUSE Linux is installed.
  • Another option to list OpenSUSE/SUSE version is to type the hostnamectl command.

Remove the Unwanted Ads from Google Chrome - Fix it

This article covers how to remove all the unwanted ads from Google Chrome.


How To disable pop-ups in Chrome ?

  • In Chrome, navigate to the upper right corner, click on the three dots to open Chrome's menu (it's called the kebab menu. We know, so funny!). Click on Settings.
  • From the panel on the left, select Privacy and security.
  • Scroll down to find Site settings.
  • Select Pop-ups and redirects.
  • Move the toggle to block pop-ups. If it works, the toggle becomes grey.


How to disable pop-ups in Chrome on your mobile device ?

  • Open the Chrome app and, in the upper right corner, tap on the Settings kebab menu.
  • Scroll down to Site settings.
  • Tap Pop-ups and redirects and tap the toggle to block pop-ups. When disabled, the toggle should be grey.

How does sudo apt-get update work in Ubuntu / Debian Linux system ?

This article covers the sudo apt-get update command which is useful for all beginners and Linux users. In fact, To explore more about this command, run the apt-get update or apt update command on your Linux system. 


What does sudo apt-get upgrade command do?

  • The sudo apt-get update command is used to download package information from all configured sources.
  • The sources often defined in /etc/apt/sources.list file and other files located in /etc/apt/sources.list.d/ directory.
  • So when you run update command, it downloads the package information from the Internet. It is useful to get info on an updated version of packages or their dependencies.


How to Run sudo apt-get update command to update package index ?

Simply type apt-get command or apt command:

$ sudo apt update

OR

$ sudo apt-get update

Manage Google Chrome Extensions - How to go about it ?

This article covers how to manage google chrome extensions using the chrome settings. In fact, You can also install an Extension manager  to manage all extensions in your browser.


How to manage your Google Chrome browser extensions ?

1. On your computer, open Google Chrome browser.

2. At the top right, click , select More tools and then Extensions.

3. Here you can manage your extensions:

  • Remove: Deinstall / remove the extension.
  • Details: Get details about the extension.
  • Turn on/off: Turn the extension on or off.
  • Allow incognito: On the extension, click Details. Turn on Allow in incognito.
  • Fix corruptions: Find a corrupted extension and click Repair. Confirm by clicking Repair extension.
  • Allow site access: On the extension, click Details. Next to "Allow this extension to read and change all your data on websites you visit", change the extension's site access to On click, On specific sites, or On all sites.

4. You can also install the Chrome Extension Manager from the Chrome Web Store.


How to Uninstall an extension in Google Chrome browser ?

1. To the right of your address bar, look for the extension's icon. Right-click the icon and select Remove from Chrome.

2. If you don't see the extension's icon:

  • On your computer, open Chrome.
  • At the top right, click More More and then More tools and then Extensions.
  • On to the extension you want to remove, click Remove.
  • Confirm by clicking Remove.

Install and Use MySQL Workbench on Fedora 35 / 34 / 33 / 32 - Step by step guide

This article covers how to easily manage your SQL databases using MySQL workbench on Fedora. In fact, the MySQL Workbench on Fedora or REHL allows the database managers, developers or DB architects to visually design the Database. It features Database Connection & Instance Management, SQL Editor, Visual EXPLAIN, SQL snippets collections, SSH connection tunneling, Unicode support, Data modeling, ER diagramming, Drag n Drop visual modeling, Database administration, Database account management, Performance monitoring, Performance Schema metrics, MySQL instance dashboard, Database migration, and more.

Upgrade .Net SDK on Debian 11 - Step by step guide ?

This article covers how to install both .Net SDK and Runtime on your Debian 11 Linux system. In fact, .NET Core is the modular and high performance implementation of .NET for creating web applications and services that run on Windows, Linux and Mac.

The Best 6 Free and Open-Source Productivity Software

This article covers the best powerful software that enhances the results of companies by boosting the input level on an individual basis that secures maximum productivity. With the assistance of these discussed platforms which are OpenProject, Productive, Trello, Hubstaff, Libre Office and Apache OpenOffice.

Install Teleport on Ubuntu 20.04 - Step by step guide ?

This article covers how to install the teleport on Ubuntu 20.04 server and add the new node. In fact, Running the commands on the added server through the WEB UI of teleport is easy to do.


How to uninstall teleport from Ubuntu ?

To uninstall just teleport package itself from Ubuntu execute on terminal:

$ sudo apt-get remove teleport

Install Psensor Temperature Monitoring Application on Ubuntu 20.04 - Step by step guide ?

This article covers how to install the Psensor Temperature Monitoring Application on the Ubuntu machine through the command line and graphically.


psensor can monitor:

  • the temperature of the motherboard and CPU sensors (using lm-sensors).
  • the temperature of the NVidia GPUs (using XNVCtrl).
  • the temperature of the Hard Disk Drives (using hddtemp or atasmart lib).
  • the rotation speed of the fans (using lm-sensors).
  • the sensors of a remote computer (using psensor-server).


How to Install psensor Using apt on Ubuntu Linux system ?

Update apt database with apt using the following command:

$ sudo apt update

After updating apt database, We can install psensor using apt by running the following command:

$ sudo apt -y install psensor

Install Joomla on Rocky Linux 8 - Step by step guide ?

This article covers how to install Joomla on Rocky Linux 8. In fact, Joomla is an open-source and PHP-based content management system used for creating different types of websites including blogs, eCommerce storefronts, and marketing sites. It is simple, user-friendly, and provides an easy way to build dynamic and powerful websites.

Install Gradle on Debian 10 - Step by step guide ?

This article covers how to install Gradle on a Debian 10 machine. In fact, Gradle is an open-source tool for build automation Java, Groovy, and Scala development. It relies on the concepts of Ant and Maven to automate the building process.


How to Install gradle on Debian Using apt ?

Update apt database with apt using the following command:

$ sudo apt update

After updating apt database, We can install gradle using apt by running the following command:

$ sudo apt -y install gradle


How To Uninstall gradle on Ubuntu 21.10 ?

To uninstall only the gradle package we can use the following command:

$ sudo apt-get remove gradle

We can use the following command to remove gradle configurations, data and all of its dependencies, we can use the following command:

$ sudo apt-get -y autoremove --purge gradle

Update Google Chrome - Step by step guide ?

This article covers how to check for recent chrome updates and how to install them. In fact, Chrome updates happen in the background automatically — keeping you running smoothly and securely with the latest features.

The Best 5 Free and Open-Source Logistics Software

This article covers the best 5 free and open-source logistics software that provides the best delivery services and manage the complete supply chain management. In fact, Businesses invest in such effective and powerful software that empowers them on getting a complete hold on multiple complex activities varying from tracking deliveries, routing along with providing the best delivery services and grabbing the audience with engaging features that equip the businesses to use the insights tactfully according to their needs to stand strong in the cutthroat competition. These includes GoFreight, URBANTZ, Tailwind TMS, Tookan and OpenTCS respectively. 

The Best 5 Free and Open-Source GPS and Vehicle Management Software

This article covers the best, free open-source GPS and Vehicle Management Software that enables companies and empowers businesses to monitor and track the progress of their fleet and to stay ahead in the game to take timely decisions resulting in more positive outcomes and business growth. These include Detrack, GPS Trackit, Onfleet, Track-POD and Odoo respectively.

The Best 6 Free and Open-Source Library Management Software

This article covers the best, powerful and competitive library management software which provides access to the users and provides them with accurate, relevant, and access to vast information on fingertips. They include Koha, Evergreen, OPALS, OpenBiblio, PMB and Invenio respectively. 

Install Python 3.11 on Ubuntu 20.04 - Step by step guide ?

This article covers how to install Python 3.11 on Ubuntu 20.04 LTS Focal Fossa using the PPA by Snakeyes or compiling from source and learning how to create a quick virtual environment.

Install Discord on Rocky Linux 8 - Step by step guide ?

This article covers how to install Discord on Rocky Linux 8. Infact, Discord is available on Windows, macOS, and Linux Distros. It allows Users to communicate with voice calls, video calls, text messaging, media, and files in private chats or as part of communities called "servers". 

Install and Run Vagrant on Ubuntu 20.04

This article covers how to install the Vagrant virtual development environment on your Ubuntu 20.04 LTS Focal Fossa system. In fact, Vagrant is a command-line tool for building and managing virtual machines. To use Vagrant, you must have a virtualization engine like VirtualBox, Hyper-V, or Docker installed on your system. The Vagrant plugin system also provides support for KVM and VMware. 

Install the Erlang Programming Language on Ubuntu 20.04 - Step by step guide ?

This article covers how to install the Erlang programming language on your Ubuntu 20.04 LTS Focal Fossa system. In fact, Erlang is a programming language used to build massively scalable soft real-time systems with requirements on high availability. Some of its uses are in telecoms, banking, e-commerce, computer telephony and instant messaging. Erlang's runtime system has built-in support for concurrency, distribution and fault tolerance.

Install Open Source osTicket on Ubuntu 20.04 - Step by Step guide ?

This article covers how to install the osTicket open source ticket system on Ubuntu 20.04 LTS Focal Fossa system. In fact, OsTicket allows you to manage, organize and archive your support request. It seamlessly routes inquiries created via email, web-forms, and phone calls into a simple, easy-to-use, multi-user, web-based customer support platform.


How to install osTicket with Nginx on Ubuntu ?

1. Update the system

First, log in to your server with sudo privileges and update the system with the latest stable version using the following command:

$ sudo apt update &&  sudo apt upgrade -y


2. Install LEMP Server

OsTicket requires Web server, PHP and Database Server to be installed on your server.

i. Install Nginx Web Server

You can install Nginx web server by the following command:

$ sudo apt install nginx -y

Now let's check Nginx service and To start the service manually, run the following commands:

$ sudo systemctl status nginx
$ sudo systemctl start nginx

Now enable nginx service to start at boot time by running the following command:

$ sudo systemctl enable nginx

ii. Install PHP and PHP-FPM

Next, you need to install PHP, PHP-FPM and some additional PHP modules which are required for OsTicket to run properly:

$ sudo apt install php php-mysql php-cgi php-fpm php-cli php-curl php-gd php-imap php-mbstring php-xml-util php-intl php-apcu php-common php-gettext php-bcmath

Above command will install php-7.2

Now edit php.ini file by running following command in terminal.

$ sudo vim /etc/php/7.2/fpm/php.ini

Uncomment cgi.fix_pathinfo variable and change its value to 0

cgi.fix_pathinfo=0

Now save and close the file.

Next, restart php7.2-fpm service and enable it at startup using the following command:

$ sudo systemctl restart php7.2-fpm
$ sudo systemctl enable php7.2-fpm

iii. Install and Configure MySQL Database server for OsTicket

From your terminal window, issue the following command to install the MySQL database server:

$ sudo apt install mysql-server

Now start MySQL service and enable it to start at boot time then check MySQL service status with the following command:-

$ sudo systemctl start mysql
$ sudo systemctl enable mysql
$ sudo systemctl status mysql

Next, secure MySQL installation with the following command:

$ sudo mysql_secure_installation

Answer all the questions as below:

Set root password? [Y/n] Y
New password:
Re-enter new password:
Remove anonymous users? [Y/n] Y
Disallow root login remotely? [Y/n] Y
Remove test database and access to it? [Y/n] Y
Reload privilege tables now? [Y/n] Y

Next, log in to MySQL console as shown below:

$ sudo mysql -u root -p

Enter your Root password here.

Now you need to create the database for osTicket

run following command:

$ mysql> create database osticket_db;
$ mysql> grant all privileges on osticket_db.* to osticket_user identified by 'OsTicketPassw0rd@19';
$ mysql> flush privileges;


3. Download and Configure osTicket

Create a new directory for osTicket and then go to that directory:

$ sudo mkdir -p /var/www/osticket/
$ cd /var/www/osticket/

Next download latest osTicket setup using wget and Extract it using the following command:-

$ sudo apt-get install wget unzip
$ sudo wget https://github.com/osTicket/osTicket/releases/download/v1.14.1/osTicket-v1.14.1.zip
$ sudo unzip osTicket-v1.14.1.zip

You will get scripts and upload directory after extracting.

Next create an osTicket configuration file from ost-sampleconfig.php file using the following command:

$ sudo su -
$ cd upload/
$ cp ost-sampleconfig.php ost-config.php

Next, you need to change ownership of the osTicket web directory to the 'www-data' user and group.

$ sudo chown -R www-data:www-data /var/www/osticket/


4. Create OsTicket Virtual Host

Now create new virtual host configuration for OsTicket by running following command:

$ sudo vim /etc/nginx/sites-available/osticket.conf

Paste the configuration as below:

server {
listen 80;
server_name 13.52.217.10;   ## change server_name as per your domain name.
root /var/www/osticket/upload;
access_log /var/log/nginx/access.log;
error_log /var/log/nginx/error.log;
index index.php index.html index.htm;

# Enable gzip
gzip on;
gzip_min_length 1000;
gzip_types text/plain application/x-javascript text/xml text/css application/xml;
set $path_info "";
location ~ /include {
deny all;
return 403;
}
if ($request_uri ~ "^/api(/[^\?]+)") {
set $path_info $1;
}
location ~ ^/api/(?:tickets|tasks).*$ {
try_files $uri $uri/ /api/http.php?$query_string;
}
if ($request_uri ~ "^/scp/.*\.php(/[^\?]+)") {
set $path_info $1;
}
location ~ ^/scp/ajax.php/.*$ {
try_files $uri $uri/ /scp/ajax.php?$query_string;
}
location / {
try_files $uri $uri/ index.php;
}
location ~ \.php$ {
fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
include fastcgi_params;
include snippets/fastcgi-php.conf;
fastcgi_pass unix:/run/php/php7.2-fpm.sock;
}
}

Here, You need to change server_name 13.52.217.10 as per your domain name.

Save the Nginx configuration file and exit.

Now activate the virtual host and test the configuration:

$ ln -s /etc/nginx/sites-available/osticket.conf /etc/nginx/sites-enabled/
$ nginx -t

Now restart nginx service:

$ sudo systemctl restart nginx


5. Install and configure osTicket

Now let's enter your domain name to get osTicket UI in any web browser.

Next Click on 'Continue' and you will be redirected to the osTicket configuration section.

Fill all required information and click “Install Now” button.

In the database settings, enter details as dbname, username, and password you have created during mysql setup.

Finally, Click on Install Now button

Next, change the permission of ost-config.php to remove write access by running the following command:

$ cd /var/www/osticket/upload/
$ chmod 0644 include/ost-config.php

For osTicket admin type your IP/domain name in the web browser.

For admin login/agent panel/Admin panel configuration type as following:

  • osTicket admin login - http://yourdomainname/scp/
  • osTicket agent panel - http://yourdomainname/scp/index.php
  • osTicket Admin panel configuration - http://yourdomainname/scp/settings.php

Install Okular on Linux Mint 20 - Step by step guide ?

This article covers how to install Okular on a Linux Mint 20 system. In fact, Okular is a universal document viewer with support for advanced document features, such as annotations, forms, and embedded files.

Install Rundeck on Ubuntu 20.04 - Step by step guide ?

This article covers how to install Rundeck on Ubuntu 20.04 for task automations in the system. In fact, Rundeck is a free open-source software for automation services. With Rundeck, you can create simple to complex tasks on either the local machine or on a remote server.

Install GNU Octave on Ubuntu 20.04 LTS - Step by step guide ?

This article covers the complete installation procedure of GNU Octave on the Ubuntu machine via different methods. In fact, Octave is a scientific application that uses a Matlab-like interpreted high-level language for numerical computations and simulations. Octave offers functions to solve linear and nonlinear problems, can plot the results as graphics and offers capabilities for data manipulation and visualization. Also it provides an interactive command line interface and a GUI interface but can also be used in noninteractive scripts for data processing.

Install VLC Media Player on Fedora 35 - Step by step guide ?

This article covers how to install the VLC Media Player on your Fedora 35 system. In fact, The VLC media player is an open-source, free portable, cross-platform media player software and streaming media server developed by the VideoLAN project.


How to Install VLC on Fedora via Snaps ?

1. Enable snapd

Snap can be installed on Fedora from the command line:

$ sudo dnf install snapd

2. Enable snap support

To enable classic snap support, enter the following to create a symbolic link between /var/lib/snapd/snap and /snap:

$ sudo ln -s /var/lib/snapd/snap /snap

3. Install VLC

To install VLC, simply use the following command:

$ sudo snap install vlc

Install LAMP Stack on AlmaLinux 8 - Step by step guide ?

This article covers how to install LAMP (Apache, MariaDB, and PHP) Stack on your AlmaLinux 8 system. In fact, LAMP compromises a web server ( Apache ), a database server ( MariaDB or MySQL ), and the PHP scripting language which supports dynamic web pages written in PHP. 

Install Octave on Linux Mint 20 - Step by step guide ?

This article covers how to install the Octave programming language on a Linux Mint 20 machine. In fact, Octave is a (mostly MATLAB® compatible) high-level language, primarily intended for numerical computations. It provides a convenient command-line interface for solving linear and nonlinear problems numerically.


How to Install octave on Linux Mint via Snapd ?

1. Enable snapd

On Linux Mint 20, /etc/apt/preferences.d/nosnap.pref needs to be removed before Snap can be installed. This can be accomplished from the command line:

$ sudo rm /etc/apt/preferences.d/nosnap.pref
$ sudo apt update

To install snap from the Software Manager application, search for snapd and click Install.

Alternatively, snapd can be installed from the command line:

$ sudo apt update
$ sudo apt install snapd


2. Install octave

To install octave, simply use the following command:

$ sudo snap install octave

Install Plank on Linux Mint 20 - Step by step guide ?

This article covers the complete installation of Plank on a Linux Mint 20 machine. In fact, Plank is a Linux dock that allows starting pinned applications and manage open windows, for X11 environments (Wayland is not supported). 

Install Anki Learning System on Ubuntu 21.04 LTS - Step by step guide ?

This article covers how to install anki on Ubuntu 21.04. In fact, Anki is a program designed to help you remember facts (such as words and phrases in a foreign language) as easily, quickly and efficiently as possible. To do this, it tracks how well you remember each fact, and uses that information to optimally schedule review times.

Install Mousepad Editor on Ubuntu 20.04 LTS - Step by step guide ?

This article covers how to install mousepad on Ubuntu 20.04. In fact, Mousepad is a graphical text editor for Xfce based on Leafpad.


How to Remove mousepad configuration, data, and all of its dependencies on Ubuntu ?

We can use the following command to remove mousepad configurations, data and all of its dependencies, we can use the following command:

$ sudo apt-get -y autoremove --purge mousepad

Install SC Sheets on Ubuntu Server 20.04 LTS - Step by step guide ?

This article covers how to install and use sc Sheets on Ubuntu 20.04. In fact, you can use it to create amazing spreadsheets using SC Sheets via terminal.


How to Install sc Using apt-get on Ubuntu ?

Update apt database with apt-get using the following command:

$ sudo apt-get update

After updating apt database, We can install sc using apt-get by running the following command:

$ sudo apt-get -y install sc


How to Install sc Using apt on Ubuntu ?

Update apt database with apt using the following command:

$ sudo apt update

After updating apt database, We can install sc using apt by running the following command:

$ sudo apt -y install sc


How to Install sc Using aptitude on Ubuntu ?

If you want to follow this method, you might need to install aptitude first since aptitude is usually not installed by default on Ubuntu. Update apt database with aptitude using the following command:

$ sudo aptitude update

After updating apt database, We can install sc using aptitude by running the following command:

$ sudo aptitude -y install sc

Install Tree Line on Ubuntu 20.04 LTS System - Step by step guide ?

This article covers how to install Tree Line on your Ubuntu 20.04 Linux system. In fact, Tree Line is a versatile piece of software which helps system admins to keep track of their data using various formats.

Install Glom Database Designer on Ubuntu 20.04 LTS System - Step by step guide ?

This article covers how to install glom on Ubuntu 20.04. In fact, Glom is a versatile and powerful database designing application.

Install Geary Email Client on Ubuntu 20.04 - Step by step guide ?

This article covers how to install and configure the Geary email client on Ubuntu 20.04. In fact, Geary is one of the best Email Client apps for Ubuntu. 


Main features of Geary includes:

  • Insert images inline features added when you will compose rich-text messages.
  • Multiple spell-checker Addons added.
  • Provides an Improved interface when you will insert links in rich text messages.
  • Offer message archiving advantages for Yahoo! Mail and Outlook.com.
  • Comes with a very good interface.
  • Easy Saving for remote inline images.
  • Distribution via Flatpak is possible.
  • The user interface, layout, and design were updated.
  • Improved designing when moving and labeling conversations at the same time.
  • It offers to unfold the starred messages when you are in a conversation.
  • The keyboard navigation is awesome.
  • Application keyboard shortcut help (Ctrl + ?) added.
  • Advanced security when displaying any messages.
  • Internal bug fixed.

Install PhotoScape on Linux Mint 20 - Step by step guide ?

This article covers the complete installation procedure of PhotoScape on a Linux Mint 20 machine. In fact, after installing on the system, you can conveniently use it for editing your photos just according to your way. 


Main Features of PhotoScape  includes:

  • Viewer: View photos in your folder, create a slideshow.
  • Editor: resizing, brightness and color adjustment, white balance, backlight correction, frames, balloons, mosaic mode, adding text, drawing pictures, cropping, filters, red eye removal, blooming, paint brush, clone stamp, effect brush
  • Batch editor: Batch edit multiple photos.
  • Page: Merge multiple photos on the page frame to create one final photo.
  • Combine: Attach multiple photos vertically or horizontally to create one final photo.
  • Animated GIF: Use multiple photos to create a final animated photo.
  • Print: Print portrait shots, carte de visites(CDV), passport photos.
  • Splitter: Slice a photo into several pieces.
  • Screen Capture: Capture your screenshot and save it.
  • Color Picker: Zoom in on images, search and pick a color.
  • Rename: Change photo file names in batch mode.
  • Raw Converter: Convert RAW to JPG.
  • Paper Print: Print lined, graph, music and calendar paper.
  • Face Search: Find similar faces on the Internet.

Install Muon / Snowflake Graphical SSH Client on Ubuntu 20.04 LTS - Step by step guide ?

This article covers the different ways of installing Muon/Snowflake on your Ubuntu machine. 


Snowflake's functionalities includes:

  • A simple GUI interface that allows to cut, copy, paste, rename, archive, execute scripts, check directory size, change permissions, etc.
  • Text editor which also supports sudo.
  • Powerful search functionality.
  • Log viewer.
  • Disk space analyzer.
  • Handy network tools (ping, Traceroute, port check, etc).
  • SSH Key management.
  • Terminal emulator.

Install Visual Studio Code on Linux Mint 20 - Step by step guide ?

This article covers the complete installation procedure of VS Code on Linux Mint 20. In fact, Visual Studio Code provides comprehensive code editing, navigation, and understanding support along with lightweight debugging, a rich extensibility model, and lightweight integration with existing tools.

Install Spotify on CentOS 8 / Rocky Linux - Step by step guide ?

This article covers the complete installation procedure of Spotify on Rocky Linux 8. In fact, Spotify allow users to legally stream the latest and old music directly on their smartphone, TV, or PC with help of a dedicated app or browser and internet.

Install Ring Central Phone on Linux Mint 20 - Step by step guide ?

This article covers the complete installation procedure of the Ring Central Phone on a Linux Mint 20 system. In fact, With RingCentral Phone, you can manage your phone system directly from your preferred device and OS and take your business calls, voice messages, SMS texts, and faxes anywhere.

Install BalenaEtcher on Debian 11 - Step by step guide ?

This article covers how you install and create a bootable disk drive using balenaEtcher on Debian 11 bullseye. In fact, balenaEtcher is a free and open-source flashing utility tool famous for writing image files such as .iso and .img files and zipped folders onto storage media to create live SD cards and USB flash drives.


How to Keep balenaEtcher Updated ?

To update balenaEtcher, use the apt-update command just as you would with any APT package or system update check:

$ sudo apt update

If an available update is listed, use the apt-upgrade command to proceed:

$ sudo apt upgrade

Install Komodo Edit on Ubuntu 20.04 LTS - Step by step guide ?

This article covers the process of installing the Komodo Edit on your Ubuntu 20.04 LTS Focal Fossa system. In fact, Komodo Edit is a free multi-language code editor that supports Python, Perl, Ruby, HTML/CSS, JavaScript and so on.


Main features of the Komodo editing free text editor:

  • Komodo Edit is an excellent code editor similar (not the same) to Notepad ++ found in Windows and other operating systems.
  • We will find this program available for Mac, Windows and Gnu / Linux.
  • We can use this application to program using multiple programming languages, like PHP, CSS, Ruby, HTML, SQL, XML, and many more.
  • Supports the fautomatic code completion and syntax highlighting.
  • We will have the possibility to obtain a preview of the web page that we are designing.
  • It is available for operating systems of 32 bit and 64 bit.
  • The free text editor Komodo supports macros.
  • We can download the source code of this application from your github page.

Install LibreNMS on Ubuntu 20.04 LTS using Nginx - Step by step guide ?

This article covers the process of installing LibreNMS on your Ubuntu 20.04 LTS Focal Fossa system. In fact, LibreNms works and supports protocols such as SNMP, LLDP, OSPF, ARP, CDP, BGP and FDP to auto-discover the network.  You can also use LibreNms to monitor many network hardware (such as Cisco, Juniper, Foundry, FreeBSD, Brocade) and even operating systems such as Windows, Linux, and FreeBSD.

Install OBS Studio on Ubuntu 20.04 LTS - Step by step guide ?

This article covers the process of installing OBS studio on your Ubuntu Linux system. In fact, OBS Studio is a free open source software for capturing, compositing, encoding, recording, and streaming video content.


Main features of OBS Studio includes:

  • Live to stream.
  • Video recording.
  • Fully configurable with multiple video sources.
  • Individual audio mixer with per-source supporting filters.
  • Video transitions.
  • Real-time video/audio capturing and mixing.
  • Free and open-source.
  • Export to multiple formats.
  • Drag and drop.

Install nload to Monitor Real Time Network Traffic on Ubuntu 20.04 Linux system - Step by step guide ?

This article covers the different ways to easily install nload on your Ubuntu system. In fact, nload is a command-line utility that can be used to monitor network traffic and bandwidth usage in real time. It visualizes the in-comming and out-going traffic using two graphs and also provides additional information like min/max network usage and total transferred data. 

Install WoeUSB on Linux Mint 20 - Step by step guide ?

This article covers the best procedure to install WoeUSB on your Linux Mint 20 system. In fact, WoeUSB is an open-source tool to create Windows USB bootable installation sticks from an ISO file or DVD on Linux systems. 

Install WildFly on Ubuntu 20.04 - Step by step guide ?

This article covers how to successfully install and configure WildFly on Ubuntu 20.04. Infact, WildFly offers you an administration dashboard to manage single or multiple domains efficiently.

Install OBS Studio on Linux Mint 20 - Step by step guide ?

This article covers the procedure of installing the OBS Studio on a Linux Mint 20 system. In fact, Open Broadcaster Software (OBS) is free, open-source, cross-platform video recording and live streaming software. 

It contains features such as high performance for real-time video/audio capturing, various filters for video sources, an intuitive audio mixer with filters, a streamlined settings panel. OBS is available for Windows, Linux, and Mac.

Install MPV Player on Linux Mint 20 - Step by step guide ?

This article covers the process of installing the MPV player on a Linux Mint 20 system. In fact, Mpv supports a wide variety of video file formats, audio and video codecs, and subtitle types.

Install OrangeScrum on CentOS 8 - Step by step guide ?

This article covers How to Install OrangeScrum on CentOS 8. In fact, Orangescrum is an open-source and collaboration web application for managing projects, teams, documents, tasks, and communicate with the team on important issues.

Install Plex Media Server on Linux Mint 20 - Step by step guide ?

This article covers how to install Plex Media Server on Linux Mint 20. In fact, Plex is a streaming media server which enables one to store all the media content in one server and use a client to access them from another computer or a mobile device. 

Install GlassFish on Ubuntu 20.04 LTS - Step by step guide ?

This article covers the process to install GlassFish on your Ubuntu 20.04 LTS Focal Fossa system. In fact, GlassFish is being maintained and developed through the GlassFish Project. 


How to Manage the GlassFish Service ?

1. To enable GlassFish at boot:

$ sudo systemctl enable glassfish

2. To start GlassFish:

$ sudo systemctl start glassfish

2. Check the service status using this command:

$ sudo systemctl status glassfish

Install Joomla on Debian 10 - Step by step guide ?

This article covers the process to follow to install Joomla CMS on Debian 10 Buster system. In fact, Joomla is a popular and widely used CMS (Content Management System) used for creating websites with little or no knowledge in markup or web programming languages.

Install ADB and Fastboot on Ubuntu 20.04 LTS - Step by step guide ?

This article covers the process to install the ADB and Fastboot on Ubuntu 20.04 LTS Focal Fossa system. In fact, ADB or Android Debug Bridge is a command-line utility that lets us control an android device from the computer itself. Its part of Google Android SDK & can be used to run shell commands or to copy the files to & from the device & also to install or remove the applications from the device.

Fastboot is basically a diagnostics mode that is used to modify the Android file system from the computer when the android device is in bootloader mode. It’s an alternative to recovery mode & is normally used to perform updates or to perform installations.



How to install ADB & Fastboot on Ubuntu systems ?

1. To install both the ADB & Fastboot, execute the following command from the terminal:

$ sudo apt-get install android-tools-adb android-tools-fastboot

2. Once the installation has been finished you can check the ADB version by running the following command:

$ adb version

Install Kubelet on Linux Mint 20 - Step by step guide ?

This article covers how to install Kubelet on a Linux Mint 20 system via the Snap Store. In fact, With the help of this amazing technology, we can easily manage the Kubernetes nodes. 

Best 8 Open-Source Applicant Tracking Software

This article covers the best and free open-source applicant tracking software that helps the companies to build applicant's pipelines, along with reducing the hiring and administrative costs incurred during the process. In fact, Choosing the right candidate is always a crucial matter for any company or organization for its success. 

They include iKrut, HireList, YouCruit, SmartRecruiters, TalentRecruit, HRMantra, Zoho Recruit, and Ejobsitesoftware respectively.

Best 8 Open-Source Web Hosting Software

This article covers the best Open-source website hosting platforms that help you to seamlessly manage your websites, servers, and usage requirements. In fact, Web hosting is the necessity of the website. Without web hosting services, the website cannot go live on the internet. Web hosting service providers leverage the tools & techniques required by the companies and individuals to make their website accessible through the internet. These includes Ajenti, Sentora, ISPConfig, Univention Corporate Server, and TinyCo.

Install SMPlayer on Linux Mint 20 - Step by step guide ?

This article covers the best way of installing the SMPlayer on a Linux Mint 20 machine. In fact, After installing SMPlayer on your system, you can conveniently use it to play your media files. 


How to Install SMPlayer on Linux Mint via snap ?

1. To install snap from the Software Manager application, search for snapd and click Install.

Alternatively, snapd can be installed from the command line:

$ sudo apt update
$ sudo apt install snapd

2. To install SMPlayer, simply use the following command:

$ sudo snap install smplayer

Install MongoDB Compass in Ubuntu 20.04 - Step by step guide ?

This article covers the installation of the MongoDB compass on your Ubuntu 20.04 system. In fact, MongoDB Compass is a graphical tool for MongoDB that helps you to create, delete, read and update the database graphically. It is very similar to phpMyAdmin which allows you to explore your data, run the queries, and interact with the database.

Procinfo Command in Linux Explained with examples

This article covers how to install procinfo software package on your Ubuntu Linux system. In fact, the file /proc/cpuinfo displays what type of processor your system is running including the number of CPUs present. 


How to install the procinfo command ?

You can install it using following command:

$ sudo apt install procinfo		#Debian/Ubuntu
$ sudo yum install procinfo #CentOS/RHEL
$ sudo dnf install procinfo #Fedora 22+


The simplest example is to run procinfo without any arguments:

$ procinfo

Install Terminator on Linux Mint 20 - Step by step guide ?

This article covers the installation method of Terminator on Linux Mint 20. In fact, a Linux terminal environment enables a user to carry out various system functionalities like file management, system update, and applications management through a variety of executable commands.


Main features of Terminator Terminal includes:

  • Multiple plugins support.
  • Simultaneous typing especially when dealing with arbitrarily grouped terminals.
  • Access to numerous keyboard shortcuts.
  • Multiple profiles and layouts support which, through GUI preferences editor, can be saved.
  • Terminals re-ordering through drag-and-drop.
  • Multiple tabs support.
  • Support for grid-like structure terminal arrangement.

Install 7-zip on Ubuntu 20.04 - Step by step guide ?

This article covers how to install 7-zip on Ubuntu 20.04 LTS Focal Fossa system. In fact, 7-Zip is an archive format that is widely used and gives a high compression rate.


How to Use 7Zip in Ubuntu Linux system ?

If you are on Ubuntu run the following commands:

$ sudo add-apt-repository universe
$ sudo apt update

After you have updated all your repositories run the following command to install 7Zip:

$ sudo apt install p7zip-full p7zip-rar

Best 8 Open-Source E-commerce Software

This article covers the market-leading and most competitive eCommerce platforms. In fact, Startups and small budget business can think of having their online presence by taking complete advantage of the free and open source eCommerce software solutions. These includes WooCommerce, OpenCart, PrestaShop Zen Cart, Magento, Drupal Commerce, Spree, and Virtue Mart.

Install Linux kernel 5.15 on Ubuntu 20.04 - Step by step guide ?

This article covers how to install the Linux kernel 5.15 on Ubuntu 20.04 LTS Focal Fossa system. In fact, The Linux kernel is the main component of a Linux operating system (OS) and is the core interface between a computer's hardware and its processes. 


How to check Updates for Kernel 5.15 ?

To keep your kernel 5.15 up to date, you will use the apt update and upgrade commands to pull updates from the PPA repository just like any other package on your Ubuntu system.

To check for updates and upgrade.

$ sudo apt update && sudo apt upgrade

Remember, for any kernel updates, and you will need to reboot your system.

Install Motrix on Linux Mint 20 - Step by step guide ?

This article covers the process of installing the Motrix download manager on a Linux Mint 20 machine. In fact, Motrix is a free and open source download manager for Linux, Windows and MacOS. It is released under MIT License. It supports HTTP, FTP, BitTorrent, Magnet and Baidu Net Disk download protocals. 

Once you have this download manager installed on your target system, you can enjoy its friendly and intuitive user interface while downloading your desired files.

Load testing on your web server using Siege ( Benchmarking Tool )

This article covers how to test load in web servers using siege benchmarking tool. In fact, Siege is an HTTP load testing tool that you can use to send hundreds of concurrent visitors on your website at once to check how it will perform under pressure and how much availability your server can provide.


How to Install Siege on Ubuntu Linux system ?

It is a very easy task to install Siege on our Ubuntu server. Execute the following command to install siege on Ubuntu:

$ sudo apt-get install siege -y

Install and Use Linuxbrew on Ubuntu 20.04 LTS Linux system

This article covers how to install Brew on Ubuntu 20.04 LTS Linux. In fact, Homebrew is one of the popular package managers for Mac OS X but can be installed on Linux as well to download and install various packages. Homebrew Cask extends Homebrew with support for quick installation of applications like Google Chrome, VLC, and more.

Basically, you can use the brew command to install the third-party package that maintains the brew community. 

Install, configure and use Zulip Chat Application on Ubuntu 20.04 LTS - Step by Step guide ?

This article covers how to easily install and configure the zulip chat application on your ubuntu Linux system. In fact, Zulip is a free and open-source chat application used for sharing private and public messages. It is a cross-platform software tool able to handle thousands of concurrent chat sessions. It can be integrated with GitHub, Jira, Stripe, Sentry, and more using third-party plugins. 


Install KeePass Password Manager on Ubuntu 20.04 - Step by step guide ?

This article covers how to install the KeePass Password Manager application on Ubuntu 20.04 system. In fact, KeePass Password Manager offers encryption algorithms AES-256, multiple User Keys, Portable version for Windows 10/7/8; Auto-Type, Global Auto-Type Hot Key, and Drag & Drop of passwords. The user can export saved passwords to TXT, HTML, XML, and CSV Files. If you are using LastPass, Bitwarden, Dashlane, AnyPAssword, Code wallet, and many others, then importing passwords from them is also possible in KeePass.

Install Percona Database Server on Ubuntu 20.04 - Step by step guide ?

This article covers the process of installing Percona Database Server on Ubuntu 20.04. In fact, Percona Server is fully compatible and a replacement for Oracle MySQL. Percona Server is used by thousands of enterprises to provide superior performance, scalability, and instrumentation for their workloads.

Install Android Studio on Debian 10 - Step by step guide ?

This article covers the process of installing the latest version of the Android Studio on the Debian 10 server. In fact, Android Studio is the IDE (Integrated Development Environment) for Android. Built on JetBrains IntelliJ IDEA software and designed for Android development.



How to Add Android studio icon to Desktop ?

  • Open android studio App and click Configure.
  • Here click 'Create Desktop Entry' option.
  • Click 'OK' for adding android studio icon to the desktop.

Install and Configure Nessus Vulnerability Scanner on CentOS 8

This article covers how to install and configure Nessus vulnerability scanner on the CentOS system. Now you can start running scans on your systems to find any vulnerability that can be exploited by attackers. 


How to start Nessus on CentOS 8 ?

Now run the following commands to start the Nessus service, enable that server at startup and check Nessus service status by running the following command:

$ sudo systemctl start nessusd.service
$ sudo systemctl enable nessusd.service
$ sudo systemctl status nessusd.service

At this time Nessus service running on default port 8834 successfully, Before you start post-installation, you need to open up that port in your firewall. To do so run the following command:

$ firewall-cmd --zone=public --add-port=8834/tcp --permanent
$ firewall-cmd --reload

Now go to your browser and enter your server name or IP along with the default port of Nessus:

https://server_name_or_ip:8834/

Install Apache Ant on CentOS 8 - Step by step guide ?

This article covers the process of installing Apache Ant on your CentOS 8 system. In fact, Apache Ant is a Java library and command-line tool that help building software. Ant supplies a number of built-in tasks that allows to compile, assemble, and run Java applications. Its build files are written in XML so it is open standard, portable and easy to understand.

Install Apache Ant on Ubuntu 20.04 LTS - Step by step guide ?

This article covers the process of installing Apache Ant on your Ubuntu 20.04 LTS Focal Fossa system. In fact, Apache Ant is a software tool for automating software build processes especially on Java environments. It is a Java library and command-line tool whose mission is to drive processes described in build files as targets and extension points dependent upon each other. The main known usage of Ant is the build of Java applications.

Upgrade Ubuntu 20.04 to Ubuntu 20.10 - Step by step guide ?

This article covers the process of upgrading Ubuntu from version 20.10 (Focal Fossa to Groovy Gorilla) system. In fact, Being able to upgrade Ubuntu from one version to the next is one of Ubuntu's best features. You benefit from getting the latest software, including new security patches, and all the upgraded technology that comes with a new release without having to resort to reinstalling and reconfiguring your system.

Install Apache JMeter on Ubuntu 20.04 LTS - Step by step guide ?

This article covers the process of installing Apache JMeter on your Ubuntu 20.04 LTS Focal Fossa system. In fact, Apache JMeter is mainly designed for testing web application, but now it is also used for database testing, stress testing, distributed testing, and functional testing.

Install MailSpring on Ubuntu 20.04 LTS - Step by step guide ?

This article covers the complete process of installing MailSpring on Ubuntu 20.04 LTS Focal Fossa system. In fact, Mailspring is a desktop email client with modern features like a unified inbox, snoozing, reminders, templates, offline search, and support for Gmail labels. It even has built-in "dark" and "ubuntu" themes so you can style it to match your desktop.


How to Install Mailspring on Ubuntu through GUI using Ubuntu Software Center ?

1. Click the Ubuntu Software Center icon located on your desktop.

2. Click the search icon to bring up the search box.

3. Type mailspring in the search box and hit Enter. After which, you will see the Mailspring application in the search results. Click the Mailspring application.

4. The Mailspring application installation view will show up on your screen. Click the Install button.

5. Now it will ask you for authentication. Provide the password for authentication. Then click Authenticate button.

6. After authentication, the installation will be started.

7. After the installation is completed, click the Launch button to open the Mailspring application.

8. You can also launch the Mailspring Email client from the Activities menu. Hit the super key to bring up the search bar. Type Mailspring in the search bar. The icon of the Mailspring application will now display on your screen. To open the Mailspring email client, simply click the icon.

Install Cuda on Linux Mint 20 - Step by step guide ?

This article covers the process of installing Cuda on your Linux Mint 20 system. In fact, the Nvidia CUDA toolkit is an extension of the GPU parallel computing platform and programming model.

Install Typora on Linux Mint 20 - Step by step guide ?

This article covers the process of installing typora on a Linux Mint 20 machine. In fact, Typora is a simple and configurable document editor that provides excellent Markdown support. This application is ideal for students and professionals who need to write essays and reports. It might be difficult using Typora for multi-file projects or for website publishing.

Install Debian 11 Bullseye distribution on VirtualBox - Step by step guide ?

This article covers the step by step installation of Debian 11 distribution on Virtualbox.

Install GIMP on Linux Mint 20 - Step by step guide ?

This article covers the procedure of installing the GNU Image Manipulation Program on a Linux Mint 20 machine. In fact, After installing this versatile photo editor, you can create and edit high-quality images on the go.

Install Foxit Reader on CentOS 8 - Step by step guide ?

This article covers how you can install Foxit PDF Reader on the CentOS system. Now you can start using Foxit PDF Reader to read, print, share, and sign PDF files. 

Install HAProxy on CentOS 8 - Step by step guide ?

This article covers the process of installing HAProxy on your CentOS 8 systems. In fact, HAProxy is an open-source software widely used as a high availability load balancer and proxying TCP and HTTP connections.

Install HPLIP on Ubuntu 20.04 LTS - Step by step guide ?

This article covers the process of installing HP's Linux Imaging and Printing software (HPLIP) on Ubuntu 20.04 LTS Focal Fossa system. In fact, HPLIP is an open-source Linux drivers for HP’s inkjet and laser printers. The project is initiated and led by HP Inc. 

Install OwnCloud on Ubuntu 20.04 LTS - step by step guide ?

This article covers the complete process of installing  and configuring OwnCloud on Ubuntu 20.04 LTS Focal Fossa system. In fact, OwnCloud allows you to host a private cloud for data synchronization, file storage, and file sharing. You can use ownCloud as an alternative to commercial services like DropBox or Box. This software is great for secure collaboration across your projects and teams.

Install Icinga on Ubuntu 20.04 LTS - step by step process ?

This article covers the process of installing Icinga 2 on your Ubuntu LTS system. Infact, Icinga is a computer system and network monitoring application that checks the availability of your network and computer resources, notifies system outages, generates performance data of your resources, and provides the high-availability and distributed monitoring setup with the built-in cluster feature. 

Install Adminer on Ubuntu 20.04 LTS - step by step guide ?

This article covers the process of installing Adminer on your Ubuntu 20.04 LTS Focal Fossa system. In fact, Adminer is an alternative to phpMyAdmin that works from a single PHP file and it's easy to install. It supports databases like MySQL, MariaDB, PostgreSQL, SQLite, MS SQL, Oracle, Elasticsearch, MongoDB, SimpleDB (plugin), Firebird (plugin), ClickHouse, and more.


To install Adminer on your Linux system, simply run the below commands:

$ sudo apt update
$ sudo apt upgrade
$ sudo apt install adminer

Install Chromium on CentOS 8 - A step by step guide ?

This article covers the process of installing the Chromium web browser in CentOS 8 system. In fact, The Chromium project covers two utilities such as Chromium and Chromium OS, which are the open source projects of the Google Chrome browser and Google Chrome OS. Chromium has been developed as an open-source browser project whose critical mission is to offer a more secure, faster and more stable way to navigate the web where threats are constant at every minute.

Install Vivaldi Browser on CentOS 8 - A step by step guide ?

This article covers the process of installing Vivaldi Web Browser on CentOS 8 systems. In fact, Vivaldi web browser is created for speed, privacy and secure browsing experience by blocking ads and trackers.

Install Magento on Ubuntu 20.04 LTS - A step by step guide ?

This article covers the process of installing Magento eCommerce in Ubuntu 18.04 LTS system. In fact, Magento is one of the most popular e-commerce systems available, with many online stores based on the platform. It is written in PHP and uses the Zend Framework. Database-wise it uses the MySQL or MariaDB relational database system.

Install Puppet on Ubuntu 20.04 LTS - A step by step guide ?

This article covers the process of installing the Puppet on 20.04 LTS Focal Fossa system. In fact, Puppet is a free and open-source automated administrative engine for Linux, Unix, and Windows operating systems. It is used for deploying, configuring, and managing servers and performs administrative tasks such as adding users, installing packages, and many more.

Furthermore, It helps system admins to free up time and mental space by automating tasks on thousands of physical and virtual machines. It uses a client-server model. Where Puppet master controls configuration information for Puppet agents while Puppet agents talk to and pull down configuration profiles from the Puppet master.

For additional help or useful information, we recommend you to check the official Puppet website.

Install FTP Server on Debian 10 - A step by step guide ?

This article covers the complete process of installing FTP Server on your Debian 10 Buster system. In fact, VSFTPD is used as an FTP server. VSFTPD stands for Very Secure FTP Daemon that is licensed under the GNU General Public License. FTP, short for File Transfer Protocol, is a common network protocol that can be used to upload and download files depending upon the permissions the user is assigned. 

Set Up DHCP Server on CentOS 8 - How to do it ?

This article covers the process of installing DHCP Server on CentOS 7 system. In fact, Dynamic Host Configuration Protocol (DHCP) is a communication protocol that computers use to automatically assign IP addresses to devices connected to a local network or over the internet. 

Install Cacti Monitoring on Debian 10 - A step by step guide ?

This article covers the process of installing Cacti Monitoring on Debian 10 Buster system. In fact, Cacti is a free and open-source, web-based network monitoring, and graphics tool which provides a fast poller with advanced graphic template creation and multiple data collection methods. 

For additional help or useful information, we recommend you check the official Cacti Monitoring website.

Install Microsoft SQL Server on CentOS 8 - A step by step guide ?

This article covers the process of installing Microsoft SQL Server (MS SQL) on your CentOS 8 system. In fact, SQL Server is Microsoft's proprietary relational database management software. It supports various operating systems and installation methods, including Linux distributions like Ubuntu, Red Hat, and CentOS.

For additional help or useful information, we recommend you to check the official Microsoft SQL Server website.

Install Plex Media Server on Debian 10 Buster - A step by step guide ?

This article covers how to install the latest version of the Plex Media Server on Debian 10 Buster. In fact, Plex is a popular free media server that allows you to organize and stream your movies, shows, music, and photos.

For additional help or useful information, we recommend you check the official Plex website .

Install Foxit Reader on Ubuntu 20.04 LTS - A step by step guide ?

This article covers how to install Foxit PDF Reader on Ubuntu 20.04 LTS Focal Fossa system. In fact, Foxit PDF Reader can be used to view, create, edit, organize, sign, scan, and OCR. It can easily export PDF files to office, PDF/A/E/X, and more. Users can collaborate, share, sign, protect, and secure documents using Foxit Reader.

For additional help or useful information, we recommend you to check the official Foxit Reader website .

Install Kotlin Compiler on Ubuntu 20.04 LTS - A step by step guide ?

This article covers how to easily install Kotlin programming language on your Ubuntu 20.04 LTS Focal Fossa. In fact, Kotlin can be used to build front-end, server-side, and Android applications. It is basically designed to interoperate with Java and is fully supported on the Android operating system by Google.

For additional help or useful information, we recommend you check the official Kotlin website.

Install Zabbix on Debian 10 - A step by step guide ?

This article covers the best method of installing Zabbix monitoring software in Debian 10 Buster systems. In fact, Zabbix is 100% free open-source ultimate enterprise-level software designed for monitoring availability and performance of IT infrastructure components. 

For additional help or useful information, we recommend you to check the official Zabbix website.

Install Telegram on Linux Mint 20 - A step by step process ?

This article covers the process of installing Telegram on Linux Mint 20. In fact, Telegram is a free and open-source instant messaging app that values user’s privacy and data encryption, which means as compared to Whatsapp all your messages will be on the company’s secure cloud in an encrypted form rather than on a local device. it is available for every mobile platform, Android, iOS, Windows Phone, Ubuntu Touch. Earlier it was not officially available for Desktop but recently developers have released it for Linux, Windows, and Mac OS desktop.

Install Falkon Browser on Ubuntu 20.04 LTS - A step by step process ?

This article covers how to install Falkon Web Browser in Ubuntu. In fact, Falkon makes use of QT Web Engine and ensures that the users surf the internet safely and it takes less memory and has a smaller footprint on disk storage.

Install Konqueror File Manager on Ubuntu 20.04 LTS - A step by step process ?

This article covers how to Install konqueror software package in Ubuntu. In fact, konqueror software package provides advanced file manager, web browser and document viewer.

You can run the commands given below on the terminal to install konqueror:

$ sudo apt-get update
$ sudo apt-get install konqueror 

Install Franz Messenger on Ubuntu 20.04 LTS - A step by step process ?

This article covers how to install Franz 5 on your Ubuntu Linux system. In fact, You can connect with up to 70 services at the same time using Franz. 

For additional help or useful information, we recommend you check the official Franz website.

Install Rambox Productivity Suite on Ubuntu 20.10 Edition - A step by step process ?

This article covers how to download and perform the installation of the Rambox productivity suite. Rambox is a cross-platform and open-source application that lets you manage messaging and email applications in a single dashboard. The Rambox application is very useful for businesses and private accounts that use multiple messaging services, email accounts, and team management software. 

Install Ferdi Messaging Suite on Ubuntu 20.10 Edition - A step by step process ?

This article covers how to download and install ferdi in Ubuntu 20.04 Focal LTS GNU/Linux. In fact, Ferdi centralizes all of your communication with its powerful servers. It is highly stable and takes less memory on Ubuntu.


Install Min Browser on Ubuntu 20.10 Edition - A step by step process ?

This article covers how to Install Min Web Browser For Linux Ubuntu. In fact, Min is a minimal, simple, fast and cross-platform web browser, developed with CSS and JavaScript using Electron framework for Linux, Window and Mac OSX.

Install Beaker Browser on Ubuntu 21.10 Edition - A step by step process ?

This article covers how to install Beaker browser on your Ubuntu Linux system. In fact, it allows you to browse sites as normal HTTP or HTTPS, and sites, using peer-to-peer connection. When you visit the "peer-to-peer sites" the connection is between the other users using the Beaker Browser. "Peer-to-peer sites" reside on the computers of the users. 

Also, Beaker Browser allows you to publish sites directly from your browser and requires no set up and administer a separate web server. In fact, between the user hosting the "peer-to-peer sites", forming a decentralized network. Similar technology can be compared to the torrent networks.


You can install Beaker Browser via Snap by running the below command:

$ sudo snap install beaker-browser

Best 6 Open-Source Anti-Spam Software

This article covers the best open-source, and cross-platform compatible anti-spam software solutions. All the listed solutions offer a codebase built on advanced machine learning algorithms that allow seamless email filtration. These includes Rspamd, MailCleaner, Apache SpamAssassin, Mozilla Thunderbird, MailScanner, and Scrollout f1. All the anti-spam software discussed here is able to detect spam, malware, threats, and viruses hidden in emails or email attachments.

Best 4 Open-Source Transportation Management Software

This article covers the most Efficient logistics and transportation management software which helps in streamlining the key activities and processes involved in transportation management. They also help in the process of arrival, packaging, sales, product distribution, warehouse, and inventory updating and management, planning the departures and arrivals, vehicle routes planning and vehicle maintenance, etc.

They include OpenTCS, OpenLMIS, Open Door Logistics (ODL), and OpenMAINT.

Best 4 Open-Source Affiliate Software

This article covers the best 4 best affiliate software that ensures seamless affiliate management platforms. In fact, these software solutions are eLitius, OSI Affiliate, Affiliate Pro, and Affiliate Pro Script. All the discussed solutions are open-source and cross-platform compatible. 

Use the Uptime Command on Linux Mint 20

This article covers how to use the Uptime command in Linux Mint 20 via different examples. In fact, Uptime is a command that returns information about how long your system has been running together with the current time, number of users with running sessions, and the system load averages at a specific period of time.

You can run the uptime command without any options like below:

# uptime


What are system load averages? 

system load average is the average number of processes that are in a runnable or uninterruptable state. A process is in a runnable state when it is using the CPU or waiting to use the CPU; while a process is in an uninterruptable state when it is waiting for I/O access like waiting for a disk.

Install Speedy Duplicate Finder on Linux Mint 20

This article covers the process of installing the Speedy Duplicate Finder through the Snap daemon on a Linux Mint 20 system. In fact, With the help of this useful application, you can easily find and remove all the duplicate files existing on your system and hence, you can efficiently utilize your system's storage resources.

Install Discord on Ubuntu 20.04 - Step by step process ?

This article covers the complete discord installation procedure on Ubuntu 20.04 Linux distribution. In fact, Discord has now become the well-known primary voice chat platform among gamers within a very short time period. Its popularity and use are also increasing in non-gamers day by day.

For additional help or useful information, we recommend you check the official Discord website.

tail Command in Linux - With examples

This article covers how to use the tail command in Linux. In fact, The Linux tail command displays data from the end of a file. It can even display updates that are added to a file in real-time. It can also monitor a file and display each new text entry to that file as they occur. This makes it a great tool to monitor log files.

Install Typora on Ubuntu/Debian Distribution - A step by step process ?

This article covers how to install the typora markdown format supportive editor on Ubuntu 20.04. In fact, the Typora markdown editor is an excellent tool to use for writing markdown.


How to install typora on linux ?

1. Run the command:

# sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys BA300B7755AFCFAE
wget -qO - https://typora.io/linux/public-key.asc | sudo apt-key add -


2. Add Typora's repository:

$ sudo add-apt-repository 'deb https://typora.io/linux ./'
$ sudo apt-get update


3. Install typora:

$ sudo apt-get install typora

Install Pyradio on Ubuntu 20.04 - A step by step process ?

This article covers methods to install and use Pyradio on your Ubuntu Linux system as well as in all major Linux distributions. In fact, Pyradio provides an array of radio stations in a wide variety of music genres that will offer a much-needed change from your music collection.

For more information about Pyradio including installation on other computing platforms and command-line controls, visit the Pyradio Github page.

Install PHP 7.4 on CentOS 8

This article covers how to install PHP on CentOS 8. You will also see how to change the default PHP version to the latest available version. After installing the PHP on your system, you can configure it with an Apache webserver or Nginx. 

PHP (PHP: Hypertext Preprocessor) is a server-side scripting language designed for web development but also used as a general-purpose programming language. PHP code is interpreted by a web server with a PHP processor module, which generates the resulting web page: PHP commands can be embedded directly into an HTML source document rather than calling an external file to process data.

Install Dooble Browser on Ubuntu 20.04

This article covers how to install, launch, and remove the Dooble browser for Ubuntu 20.04 LTS terminal. In fact, Dooble is a highly customizable Firefox fork for advanced users.


To install dooble package on Ubuntu, simply run the following command on terminal:

$ sudo apt-get update
$ sudo apt-get install dooble

Install Krita on Ubuntu 20.04 LTS

This article covers how to install Krita on Ubuntu 20.04 LTS. In fact, Krita is a professional painting tool. 



Benefits of Krita ?

Krita is a free and powerful painting software developed by KDE. It offers numerous features that make it ideal for digital painting. Effects and filters for image processing, textures for rendering, vector art support, and support for layer management are only some of the features from the long list that Krita possesses. It is therefore no wonder why Krita has emerged as one of the favorites of many visual creators and 2D/3D Artists.


How to install Krita and remove on Ubuntu 20.04 LTS:

1. Open command terminal on Ubuntu.

2. Run system update command: $ sudo apt update

The above command will make sure all the installed packages are up to date.

3. Now, run the command to install Krita open source painting software on Ubuntu 20.04 or 18.04 LTS:

$ sudo apt install krita

The above single command will install this digital drawing program from the official Ubuntu repository.

4. To run it, go to "Show Applications" and search for Krita.

As it appears, click on its icon to run it.

5. If later you don't want to use the graphics content creation program, then use the command to uninstall it:

$ sudo apt remove krita 

Install TupiTube Desk on Ubuntu 20.04 LTS

This article covers how to install TupiTube Desk on your Ubuntu Linux system. In fact, TupiTube Desk is a desktop application that targets 2D vectors like images (PNG), storyboards (HTML), and animations (OGG, AVI, MPEG, etc.). 

With TupiTube, you will be able to create and share drawings and animations in a simple way. This project is developed and maintained by the Colombian startup MaeFloresta. It is a project that is covered by the terms of the GNU General Public License v2, which means that TupiTube is a free and open source software.


Main features of TupiTube Desk:

  • TupiTube Desk is a software designed to create and export animations using different techniques such as frame by frame, cut-out animation, stop motion, etc.
  • This is a free-to-use tool. We will be able to find it available to be installed in equipment with Windows, Mac and Gnu / Linux.
  • According to its creators, this is a social project from which seeks to offer a simple tool for all those who want to start in the world of animation. According to its website, that is the main reason for its license and that it is free.
  • Its interface has been designed to provide a high-level user experience for artists and non-artists, using as main development resource the Qt framework.
  • By using this software, we will find basic tool stand for vector illustration It includes rectangles and other shapes, ellipsis, fills, lines, text, and polygons.
  • The tool Paint pot We will be able to use it to fill delimited areas of vector objects in a simple way.
  • We will find Gradient tools, a brush editor, or pencil with smoothness support.
  • We can use the option animation module preview.
  • Option to export the animation. Finished animations can be exported to various formats Archives including: Ogg Theora, AVI, MPEG, SWF. Or as a sequence of images in format PNG, JPEG and SVG.
  • Images can be imported and used as static funds or animated assets.
  • Includes basic support for interpolation of positions, colors, rotation, scale, transparency and opacity have been added.
  • The panel of the Library it will allow us to organize and reuse imported media resources.

Install Synfig Studio on Ubuntu 20.04 LTS

This article covers how to install Synfig Studio on your Debian, Ubuntu, and related Linux distributions. In fact, Synfig Studio is a free and open-source 2D animation software, designed as a powerful industrial-strength solution for creating film-quality animation using vector and bitmap artwork. Synfig Studio is available for Windows, Linux, and macOS.

To Install synfig package on Ubuntu is as easy as running the following command on terminal:

$ sudo apt-get update
$ sudo apt-get install synfig


Features of Synfig Studio:

  • Completely reworked UI The user interface was completely reworked for a more intuitive and user-friendly experience. Enjoy the Single-Window mode, powered by the modern GTK3 libraries!
  • Bones Use the full-featured bone system to create cutout animation using bitmap images or control your vector artwork.
  • Advanced image distortion Apply complex deformations to your bitmap artwork using the new Skeleton Distortion layer.
  • Cutout Tool Cut your bitmap images right in the Synfig! The new Cutout Tool provides the non-destructive editing, so you never have to worry about cutting a wrong part.
  • Sound support The new Sound Layer provides basic features for syncing your animation with soundtrack. Linux users can get all benefits of full-featured audio editors through the JACK integration.
  • Dynamics animations Enhance your animation with automatic friction effects using the new Dynamics converter.
  • Bonus Features New SFG file format with the possibility to embed all linked media. Image painting engine with MyPaint brushes. Preliminary support for frame-by-frame animation.

Install Drawing Studio on Ubuntu 20.04 LTS

This article covers how to install Drawing Studio on your Ubuntu Linux system. In fact, Drawing Studio is built on top of Gnome's stack and has a vast user base for your painting needs.

Install Pencil2D Animation on Ubuntu 20.04 LTS

This article covers how to install "pencil2d" Package on Ubuntu. In fact, Pencil2D is an animation/drawing software for Mac OS X, Windows, and Linux. It provides a means to Create hand-drawn animation using both bitmap and vector graphics.

You can install in your Ubuntu by running the commands given below on the terminal:

$ sudo apt-get update
$ sudo apt-get install pencil2d 

Install Pinta on Ubuntu 20.04 LTS

This article covers how to install, launch, and remove pinta on Ubuntu 20.04 LTS. In fact, Pinta is more like a Microsoft Paint and with this your painting made simple.


How to install Pinta on Ubuntu ?

1. Install PPA:

$ sudo add-apt-repository ppa:pinta-maintainers/pinta-stable

2. Update System with Package list:

$ sudo apt-get update

3. Install Pinta:

$ sudo apt-get install pinta

Install MyPaint on Ubuntu 20.04 LTS

This article covers how to install, launch, and remove MyPaint on Ubuntu 20.04 LTS. In fact, MyPaint an open-source, fast painting program that centers around full-screen use, with the idea that the user should focus on the art rather than the interface.


How to install or uninstall mypaint on Ubuntu 20.04 LTS (Focal Fossa)?

1. To install mypaint package, run the below commands:

$ sudo apt update
$ sudo apt install mypaint


2. To Uninstall mypaint package, execute the commands:

$ sudo apt remove mypaint
$ sudo apt autoclean && sudo apt autoremove

Install KeePass on Linux Mint 20

This article covers how you will be able to install the KeePass password manager on your Linux Mint 20 system. In fact, offers encryption algorithms AES-256, multiple User Keys,

Portable version for Windows 10/7/8; Auto-Type, Global Auto-Type Hot Key, and Drag & Drop of passwords. The user can export saved passwords to TXT, HTML, XML, and CSV Files. If you are using LastPass, Bitwarden, Dashlane, AnyPAssword, Code wallet, and many others, then importing passwords from them is also possible in KeePass.

KeePass password manager can also be used very efficiently with the Windows, macOS, iOS, or even Android operating systems.


How to Create Database for Keepass ?

If you already have a password database somewhere else then we can import them to Keepass. For that, click on the File and then Import option. However, if you want to start from scratch then we need to create a database file here on the software:

  • To create a KeePass database, click on the File option in the menu and select "New".
  • You can use the default location to save the Database given by the application or choose the one you want.
  • Give some name to your database.
  • Create a Master password that will use to encrypt the database.
  • And the application is ready to use.
  • After that, you can either add a new Password Entry manually into the database of KeePass to save your login information.

Install Audacity Audio Editor on Ubuntu 20.04

This article covers the different methods to install Audacity audio editor in ubuntu OS. In fact, Audacity is an easy-to-use, multi-track audio editor and recorder for Windows, Mac OS X, GNU/Linux, and other operating systems.


How to Uninstall Audacity audio editor ?

To remove the PPA repository, launch Software & Updates utility and remove relevant line under 'Other Software' tab. Or simply run command in terminal:

$ sudo add-apt-repository --remove ppa:ubuntuhandbook1/audacity

How to remove Audacity audio software from Linux ?

To remove Audacity audio software, either use system package manager or run command in terminal:

$ sudo apt-get remove --autoremove audacity audacity-data

Display Asterisks While Typing Sudo Password in Linux (Ubuntu and CentOS Example)

This article covers how to show an asterisk as visual feedback while typing sudo password. Try once on Ubuntu or Centos by doing small changes on the file on /etc/sudoers file. 

To Show Asterisks While Typing Sudo Password in Linux, simply edit the /etc/sudoers file and add pwfeedback. This makes the asterisks visible when the password is entered. After the file is edited and saved, we type reset command for the effect to take place.

Install Terminator on Ubuntu 20.04

This article covers how to Install and Use Terminator, the Terminal Multiplexer. In fact, The terminator is similar to the built-in terminal with added features. You can arrange Terminals in a grid, Tab, Drag and drop re-ordering the terminal, use keyword shortcuts, create and save profiles. It is inspired by programs such as gnome-multi-term, quad console, and so on.

For more information about Terminator, visit its documentation.


How to Install terminator on your Linux system ?

For kali Linux:

$ sudo apt-get install terminator

For Ubuntu:

$ sudo apt install terminator

For Arch Linux:

$ sudo pacman -S terminator

For CentOS:

$ sudo yum install terminator

Best 5 Open-Source Product Management Software

This article covers the best product lifecycle management (PLM) or simply, the product management software. The listed software are Apache OfBiz, Ofoo, OpenPLM, Aras Innovator, and OpenBOM. The listed offer efficient and most market competitive features and capabilities along with offering free subscriptions, open-source development, and are cross-platform compatible. There are also other famous and efficient PLM software but none of them are equipped with free subscriptions, or are open-source, and cross-platform compatible along with providing state-of-the-art features and capabilities all in one.

Install and Configure Grsync on Linux Mint 20

This article covers how to install and configure as well as its advanced and extra options to create better backups in your Linux Mint system. In fact, Grsync is an open-source simple, great, and easy to use graphical user interface for the popular rsync command-line tool.

To install Grsync on your system, simply run the following command:

$ sudo apt install grsync

The Best Open-Source CRM Software

This article covers the market-leading and highly competitive CRM software mostly adopted by the business and corporate sector organizations and personnel. The listed and discussed software are Bitrix24, Odoo, iDempiere, Apache OFBiz, SuiteCRM, Dolibarr, CiviCRM, OpenCRX, VTiger, and Sangoma FreePBX. Among the listed CRM software all are cross-platform compatible, and open-source.

Best 8 Open-Source free CAD Software for Linux

This article covers the best Open-source free CAD modeling software for your Linux system. In fact, CAD software refers to a type of software program used by engineers and designers to create 2D and 3D physical component models. These applications have an easy-to-use user interface, toolbars, and a large library of 3D models. Many tools also enable you to print on multiple pages. This includes LibreCAD, FreeCAD, OpenSCAD, TinkerCAD, BRL-CAD, Open Cascade and QCAD.


How does CAD Software work ?

  • Initially, a graphics card or a CAD software package will be installed in your computer to enable your typical CAD system work.
  • The graphics kernel is the heart of the CAD software package.
  • GUI is an essential part of the CAD packages. The usage of GUI involves obtaining user input by displaying the CAD geometry.
  • The mouse and the keyboards are mostly used as the input devices. However, digitizer, tracker ball, etc are also used sometimes.

Methods to Install OpenBoard on Linux Mint 20

This article covers how to Install OpenBoard on a Linux Mint 20 system. In fact, OpenBoard is an open source cross-platform teaching software for interactive whiteboard designed primarily for use in schools and universities. It can be used both with interactive whiteboards or in a dual-screen setup with a pen-tablet display and a beamer.

Install Ntopng on Ubuntu 20.04 LTS

This article covers how to install ntopng on Ubuntu OS and access its web interface. In fact, Ntopng is an essential application for monitoring and troubleshooting network problems.


More about Ntopng

Ntopng basically is a network traffic probe that will monitor network usage. It is based on libpcap, a Library written as part of a larger program called TCPDump. Ntopng is based on Redis key value server rather than traditional database, leverages nDPI for protocol discovery, supports host geolocation, and can display real-time flow analysis for connected hosts.


Main Features of Ntopng:

  • Packet capture → Packet capture / transmission using basic hardware with PF_RING. Zero-copy package distribution across threads, applications, and virtual machines. Includes Libpcap support for seamless integration with legacy applications.
  • Traffic recording → Lossless network traffic recording of 10 Gbit and above with n2disk. Industry standard PCAP file format. It allows to quickly retrieve packages using BPF. Accurate traffic reproduction with disk2n.
  • Network probe → nProbe- NetFlow v5 / v9 / IPFIX extensible probe with plug-in support for L7 content inspection.
  • Report on the use of the IP protocol → Even going so far as to classify it by type of protocol.
  • Traffic analysis → High speed web based traffic analysis and flow collection using ntopng. Persistent traffic statistics in RRD format. Layer 7 analysis leveraging nDPI, an open source DPI framework. Even going so far as to classify the traffic according to the source / destination.
  • Geolocate and Overlay Hosts → This will be done on a geographic map.
  • Alert engine → We can capture anomalous and suspicious hosts.
  • Produce network traffic statistics → Using HTML5 / AJAX technology.
  • We will have full support for current network protocols → Including IPv4 and IPv6.

Install Anaconda on CentOS 8

This article covers how you install Anaconda on your CentOS system. In fact, Anaconda manages many pre installed packages and that packages are helpful for data science, Machine Learning and Artificial intelligence applications. Once installed on your system, you can now start building your machine learning projects.

Install LAMP Server on Debian 11

This article covers a step-by-step procedure of how you can install LAMP stack on the Debian 11 Bullseye server. In fact, LAMP is a popular opensource stack that stands for Linux Apache MySQL/MariaDB and PHP. It’s mostly used by front-end and back-end developers to test and host a website. The stack comprises of 3 components. First, we have  Apache, which is a web server. Then we have Mariadb, which is a fork of MySQL and PHP which is a server-side scripting language. All the components are absolutely free and opensource.


How to Install Apache webserver on your Linux system ?

1. To get started, log into your server instance and update the package lists with the below command:

$ sudo apt update

2. Once your packages are up to date, install the Apache webserver with the below command:

$ sudo apt install apache2 apache2-utils

3. Once installed, verify the status of apache to see if it is running, by executing the command:

$ sudo systemctl status apache2

4. If apache is not running, you can start and enable it on boot using the commands:

$ sudo systemctl start apache2
$ sudo systemctl enable apache2

Install SlimJet Browser on Ubuntu 20.04

This article covers how to install, run, and remove a fantastic, graphical user interface-based browser for Ubuntu 20.04 LTS terminal. In fact, SlimJet is a privacy-focused browser and comes with a built-in adblocker. This means that it DOES NOT send any usage statistics back to Google’s server like Google Chrome which is ultimate for privacy. 

To Install Slimjet on Debian, Ubuntu & Mint, run the below commands respectively:

[For 64-bit DEB based systems]

$ wget http://www.slimjet.com/release/archive/8.0.4.0/slimjet_amd64.deb
$ sudo dpkg -i slimjet_amd64.deb

[For 32-bit DEB based systems]

$ wget http://www.slimjet.com/release/archive/8.0.4.0/slimjet_i386.deb
$ sudo dpkg -i slimjet_i386.deb

Install Links Browser on Ubuntu 20.04

This article covers how to install, run, and remove the Links browser for Ubuntu 20.04 LTS terminal. In fact, Links provides a pull-down menu system, renders complex pages, has partial HTML 4.0 support (including tables, frames and support for multiple character sets and UTF-8), supports color and monochrome terminals and allows horizontal scrolling.


How To Install links on Ubuntu ?

1. Update system:

$ sudo apt-get update

2. Install links:

Ater updating the OS run following command to install the package:

$ sudo apt-get install links

Install Elinks on Ubuntu 20.04

This article covers how to install, run, and remove Elinks browser on Ubuntu 20.04 LTS. In fact, Elinks runs in the terminal. Not only it saves bandwidth but also consumes a few system resources. On a server where resources are always constrained, elinks can be the best choice to access the web.


Step by step installation of elinks:

1: Update system:

$ sudo apt-get update

2: Install: elinks

Ater updating the OS run following command to install the package:

$ sudo apt-get install elinks


How to Completely remove elinks with all configuration files from Ubuntu?

Following command should be used with care as it deletes all the configuration files and data:

$ sudo apt-get purge elinks

or you can use following command also:

$ sudo apt-get purge --auto-remove elinks

Above command will remove all the configuration files and data associated with elinks package. You can can't recover the delete data, so, use this command with care.

Install HexChat on Debian - The easiest method ?

This article covers how to install and remove HexChat 10 buster edition. In fact, HexChat is a nice chatting utility to connect with IRC servers.

Installing hexchat package on Ubuntu is as easy as running the following commands on terminal:

$ sudo apt-get update
$ sudo apt-get install hexchat


How to Install HexChat in Linux ?

Run the below command as per your Linux distribution:

$ sudo apt install hexchat [On Debian/Ubuntu & Mint]
$ sudo yum install hexchat [On CentOS/RHEL 7]
$ sudo dnf install hexchat [On CentOS/RHEL 8 & Fedora]
$ sudo yay -S hexchat [On Arch Linux]
$ sudo zypper install hexchat  [On OpenSUSE Linux]
$ sudo pkg install hexchat [On FreeBSD]

Add Multiple Time Zones in Ubuntu Linux - Follow this procedure ?

This article covers how Gnome-clocks can help keep track of time in multiple time zones for you. Now you can keep up with your work meetings and deadlines across the globe with a simple click. You can explore and use Gnome-clocks other features like timer, stopwatch, and Alarms and get a hundred percent performance out of it.

To install GNOME Clocks, simply run the below commands:

$ sudo apt install gnome-clocks

Reading a File with Spaces in Linux - How it Works ?

This article covers how you can read files and also handle directories with filenames that contain spaces in Linux. To to use files with spaces you can either use the escape character or use the double quotes. is called escape character, used to not expansion of space, so now bash read the space as part of file name.


How to Navigate to a directory with spaces in the directory name ?

To navigate to a directory with spaces in its directory name, use the syntax below:

$ cd  directory\ name

To navigate to the directory 'linoxapt files' execute the command below:

$ cd linoxapt\ files

HTTrack Advanced Configurations on Ubuntu 20.04 LTS

This article covers  every aspect of HTTrack settings. In fact, WebHTTrack backs up complete websites for offline access and modifies the links automatically. Despite ubiquitous Internet access, users often have good reason to create offline copies of websites – be it for archiving or to provide the content on your intranet. However, manual mirroring can be time-consuming and cumbersome. Tools like WebHTTrack can help, and they allow convenient updating of the content. Now you are ready to mirror any website using HTTrack on Ubuntu 20.04 Linux distribution. 

Install .Net 5 on Debian 10 - Best Guide Online ?

This article covers how to install .NET version 5 on Debian 10 Linux system distribution. In fact, .NET 5.0 is a Free, Cross-Platform, Open Source Developer Platform for building many different types of Applications. Also, with .NET SDK you can use multiple Languages, Editors, and Libraries to build for Web, Mobile, Desktop, Games, and IoT.


What are the languages supported in the net core?

C#, F#, and VB can be used to write applications and libraries for .Net Core. Because compilers run on .Net Core, it allows you to design and develop wherever .Net Core itself can. This means that you will not use the compilers directly, but will use them indirectly using the SDK tools.

Because the C# Roslyn compiler and .Net Core tools have the ability to integrate with various text editors and IDEs, including Visual Studio, Visual Studio Code, Sublime Text, and Vim, .Net Core has become a suitable platform for developers. To perform their desired coding in their favorite environment and operating system.

Install Pelican on Ubuntu 20.04 - Best Method ?

This article covers how to install Pelican using pip on Ubuntu 20.04 LTS. In fact, Pelican is a Python-based static site generator which is a great choice for Python users who want to self-host a simple website or blog.

To Install pelican package on Ubuntu, simply execute the following command on terminal:

$ sudo apt-get update
$ sudo apt-get install pelican


How to install pelican-foli on Ubuntu via Snaps ? 

1. Enable snapd

snapd can be installed from the command line:

$ sudo apt update
$ sudo apt install snapd

2. Install pelican-foli, simply use the following command:

$ sudo snap install pelican-foli

Install phpMyAdmin on AlmaLinux / CentOS 8 - Follow the steps outlined here ?

This article covers the installation and configuration procedure of phpMyAdmin on CentOS 8 / AlmaLinux 8. It is one of the most popular database administration tools used by hosting companies and system administrators for performing database activities such as creating, deleting, querying tables, columns, relations, indexes, users, permissions, etc. Now, you can create and manage all the databases conveniently without the need of running SQL queries.

Install and Configure Apache Spark on Ubuntu 20.04

This article covers how to install and configure apache spark on ubuntu. In fact, Apache Spark is a framework used in cluster computing environments for analyzing big data. This platform became widely popular due to its ease of use and the improved data processing speeds over Hadoop. Spark basically supports various APIs for streaming, graph processing, SQL, MLLib. It also supports Java, Python, Scala, and R as the preferred languages. Spark is mostly installed in Hadoop clusters but you can also install and configure spark in standalone mode.

Install Yarn on Rocky Linux 8 / AlmaLinux 8 - Best method ?

This article covers the process of installing Yarn on Rocky Linux system. In fact, Yarn is a tool for managing, updating, and sharing your Java code. Yarn works through node.js helping to track libraries, dependencies, and even enables you to share solutions with other developers.

Install Yarn on Linux Mint 20 - A step by step guide ?

This article covers how to install yarn on Linux Mint 20 distribution using the command line method. In fact, Yarn is a JavaScript package and dependency management tool that helps users to automate the tasks of installing, updating, removing, and configuring NPM packages. It is a good dependency package manager that is very helpful for experienced developers as well as for learners. 


How to Remove Yarn from Linux Mint 20 ?

If you no longer require Yarn and want to remove it from your Linux Mint 20 system, then it is very easy and straightforward to remove.

Issue the following command in the terminal to remove Yarn completely from your system:

$ sudo apt remove--autoremove yarn

Install Stacer on Linux Mint 20 - A step by step guide ?

This article covers the best procedure of Installing Stacer on Linux Mint 20. In fact, Stacer is an amazing tool for Linux system monitoring and optimizing. It is a multi utility tool with features that allows you to easily manager your Linux system. Once installed successfully, Stacer can easily be used for system monitoring and improving its performance and efficiency.


How to Install Stacer on Linux ?

If you want the latest version of Stacer then open a new Terminal Window and execute the following command line by line:

$ sudo add-apt-repository ppa:oguzhaninan/stacer
$ sudo apt update
$ sudo apt install stacer

This will add Stacer PPA in your repository and install the latest version of Stacer on your system.

However, if you want to install the most stable release (tested) of stacer, which can be installed from the official repository of your operating system then open terminal and execute the following command:

$ sudo apt install stacer

Top 5 Visual Studio Code Extensions for Linux Users

This article covers a variety of extensions for Linux users. The features that Visual Studio Code includes out-of-the-box are just the start. VS Code extensions let you add languages, debuggers, and tools to your installation to support your development workflow. VS Code's rich extensibility model lets extension authors plug directly into the VS Code UI and contribute functionality through the same APIs used by VS Code.

Install Scribus on Ubuntu 20.04 - A step by Step guide ?

This article covers the installation procedure of Scribus on Ubuntu Linux system. In fact, Scribus is an open-source cross-platform application for designing and publishing brochures, newspapers, magazines, posters, books, and even newsletters.


How to Install Scribus in Ubuntu 20.04 LTS ?

1. Update the system repository:

$ sudo apt update

2. Install Scribus and related dependencies (if any):

$ sudo apt install scribus

Install Stacer System Optimizer & Monitoring Tool on Ubuntu 20.04 - Best Method ?

This article covers the different ways and steps to perform the installation of Stacer on Ubuntu Linux system. In fact, Stacer lets you perform several Linux optimization and monitoring tasks through a single utility. Now you can manage and monitor your system easily and efficiently using a graphical tool.

To install the latest version of Stacer in Debian and Ubuntu-based Linux distributions, use the following PPA y running the commands:

$ sudo add-apt-repository ppa:oguzhaninan/stacer
$ sudo apt-get update
$ sudo apt-get install stacer

Allow Remote Connections to MySQL - Best Method ?

This article covers how to allow remote connections to a MySQL server. Hosting databases and web servers on a separate database server can improve security, hardware performance, and enable you to scale resources quickly.

One of the most frequently observed database bottlenecks encountered by large projects is high MySQL traffic. Sure, we could talk about moving to a bigger cloud instance size, faster cores, and better storage, but that’s too obvious and costly. Instead, we would like to focus on several tips that can reduce traffic with a bit of configuration.


Methods to reduce Internet traffic when connecting to the remote host:

  • Disable and/or optimize the high-load features of your application.
  • Use ProxySQL to enable connection pooling. This will prevent your application from overloading MySQL with a multitude of concurrent connections. Another nice feature of ProxySQL helps cache query results for a certain period of time.
  • Monitor your databases for performance bottlenecks.
  • Identify and optimize queries that cause high load. If you use dbForge Studio for MySQL, you get a specialized tool—Query Profiler—which helps you deal with this task easily.
  • Add missing indexes and eliminate redundant and unused ones.
  • Conduct a thorough check of your background operations. Some of them can be postponed, some may work just as effectively with limited resources (e.g. limited concurrencies for batch jobs), and some may be perfectly running on replicas.

Install VirtualBox Guest Additions on Debian 11 - Best Method ?

This article covers how to successfully install VirtualBox Guest Additions on Debian 11. In fact, Using VirtualBox you can run multiple guest operating system simultaneously. The Guest Additions provides some useful functionalities for guest machines like a mouse pointer integration, full screen view, shared folders, shared clipboard, better and accelerated and much more.

Top 5 Free and Open-Source HR Software

This article covers the best open source HR management software tools for you. They are effective and useful for small and medium businesses to efficiently manage their human resources.

Businesses are struggling to recruit good and qualified personnel, and to retain them in their service over a substantial period, the above HR management software tools can help to ease the burden of HR managers in businesses.

The listed HR software are OrangeHRM, Sentrifugo, IceHRM, Orange HRM and WaypointHR. Software such as WaypointHR and IceHRM will have to be downloaded from third-party software providers, such as SourceForge.

Install Bitwarden on Linux Mint 20 - Follow these steps ?

This article covers the best method to install the Bitwarden password manager on your Linux Mint 20 system. In fact, Bitwarden stores all of your logins in an encrypted vault that syncs across all of your devices. Since it’s fully encrypted before it ever leaves your device, only you have access to your data. Not even the team at Bitwarden can read your data, even if we wanted to.

Upgrade Debian 10 Buster to Debian 11 Bullseye - Step by Step guide ?

This article covers a step by step guide on how to perform upgrade from Debian 10 Buster to Debian 11 Bullseye. Before this upgrade, it is crucial that you make a backup of your data and system configurations. For cloud-based VMs one can quickly backup and restore using snapshots.


The most important things you have to backup are contents of /etc, /var/lib/dpkg, /var/lib/apt/extended_states and the output of dpkg –get-selections "*".


Debian 11 comes with the following features:

  • Newer version of desktop environments such as Gnome 3.38, KDE Plasma 5.20, MATE 1.24, Xfce 4.16, LXDE 11, LXQt 0.16 e.t.c
  • Linux Kernel 5.10LTS
  • ExFAT support
  • Package updates
  • Printer and Scanner improvement
  • Supports many architectures such as 32-bit and 64-bit PC, 64-bit ARM, ARMv7, ARM EABI, little-endian MIPS, 64-bit little-endian PowerPC, 64-bit little-endian MIPS, IBM System z e.t.c thus referred to as a universal operating system


Best tools to backup Linux system data and configurations:

  • Rsync– a commandline utility tool used to backup personal and $ Home directory data
  • Deja Dup– a GUI utility used to backup personal data.
  • Timeshift– a tool used to backup system files and configurations.
  • Restic– a commandline utility toolthat saves multiple revisions of files in an encrypted repository stored on different backends.
  • Rsnapshot– this is a commandline utility tools that creates periodic snapshots for local and remote machines over ssh.
  • Other tools include: Barman, BackupPC, Bup, Lsyncd, Bareos, Bacula, Duplicati, Borg e.t.c

Install Shotcut on Linux Mint 20 - The complete guide ?

This article covers the installation of Shotcut on a Linux Mint 20 system with the help of the Flatpak package manager. In fact, Shotcut is a Free, Open Source, Cross-Platform Video Editor.

Install Bitwarden on Ubuntu 20.04 - A complete guide ?

This article covers how to install and setup free version of Bitwarden for individual use. Now start saving your passwords and other confidential information in your Bitwarden vault. Using Bitwarden you can easily and safely generate, store, and secure unique passwords from any location or device. It is compliant with Privacy Shield, HIPAA, GDPR, CCPA, SOC2 and SOC3 security standards and comes with AES-256 bit encryption, salted hashing, and PBKDF2 SHA-256.


How to Install Bitwarden via Snap ?

1. Open the terminal app (ctrl+alt+t) and run below Bitwarden password manager snap installation command:

$ sudo snap install bitwarden

2. After the installation you can open Bitwarden from the application menu or via this command.

$ bitwarden

3. It also comes with a command-line support. You can install the Bitwarden command-line cli app via the below command.

$ sudo snap install bw

What is Localhost ?

This article covers what localhost is as well as 127.0.0.1/loopback. In fact, Developers use the localhost to test web applications and programs. Network administrators use the loopback to test network connections. Another use for the localhost is the hosts file, where you can use the loopback to block malicious websites. 


Install GlassFish on CentOS 8 - A step by Step guide ?

This article covers how to install the GlassFish application server on CentOS 8. In fact, GlassFish allows developers to create enterprise applications that are portable and scalable, and that integrate with legacy technologies. Also, you will see the best way to define systemd services for running Glassfish server and firewall configurations. 

To Start and enable glassfish services, simply run the below command:

$ systemctl start glassfish.service
$ systemctl enable glassfish.service
To access Glassfish Server on CentOS / RHEL 8, simply browse the below URL to access Glassfish Admin Console, ignore the certificate warning or install it:
https://SERVER-IP-OR-DOMAIN-NAME:4848/

List Loaded Kernel Module Using Lsmod Command - How it works ?

This article covers how to list loaded kernel modules using lsmod command. In fact, lsmod command nicely prints the contents of the /proc/modules. To list the currently loaded kernel modules, execute the below command:

$ lsmod

Deploy Mattermost on Ubuntu 20.04 - A Step by step guide ?

This article covers how to deploy Mattermost on Ubuntu 20.04. Mattermost is an open source collaboration and messaging platform created with security and configurability in mind providing comparable functionality to Discord or Slack. It offers group, threaded and one-to-one messaging, unlimited search history and file sharing capabilities, two-factor authorization and notifications. Mattermost also provides webhooks and bot integration for further customization. It's accessible from every type of modern device due to its responsive web interface and dedicated mobile apps.

Now, you can easily connect with your team on Mattermost using a Desktop client. Even you can add multiple Mattermost servers to single desktop client and collaborate with different team users.

Top 6 Free and Open-Source Data Entry Software

This article covers the best free and open-source data entry software solutions that provide efficient data entry and management capabilities. In fact, Data entry, though a requirement of every organization, is rare if one requires it for free along with access to its source code. The listed data entry software solutions in the article are Form Tools, DKAN, CKAN, and GADS are all completely open-source and free for anyone to access thereby allowing immediate and most efficient access to its users. Many other free data entry tools are quite famous, such as Docparser, Kamisha soft, Moreapp, etc.

Companies can gain business with a proper data management system. The growth of the company depends on its data. Rigorously, the data entry teams are toiling hard to enhance their business operations. 


Features of data entry software:

  • Electronic forms – The data entry software features electronic forms that enable the user to create custom forms to keep the critical data that can be entered into the system. With the help of autofill functionality, the user can effortlessly fill the forms and check the standard errors. The data entered in these forms are converted into more complicated and classified formats by the data entry tool. These formats are used for better storage and analysis.
  • Data extraction – The feature of data extraction in data entry software helps in taking the unstructured data and further classifying and processing data which can be used in the business.
  • Data validation – The process of data validation is performed to ensure that the standard errors should be avoided at the time of data entry so that data gets entirely correct and useful for the users. 
  • Data Cleaning – This feature takes the set of data (like a table, record set, database, etc.). All the data undergo the scanning process to clean the data from the specific specified errors, discrepancies, and blank spots.
  • Data Classification – The data classification feature takes the data entered into the system and converts it into a format to make it more beneficial for future use and analysis.
  • Scanning- This feature allows to scan the images that can be stored with the data. The advanced data entry software can scan in spreadsheets and other types of physical data sets that can be converted and classified into usable data in the system. This feature helps in storing visual information. 

Top 7 Free and Open-Source Statistical Analysis Tools

This article covers the best free and open-source statistical modeling and analysis tools highly adapted by the statistics and data sciences field experts such as R Project, Gretl, GeoDa, MacAnova, PSPP, and Rattle and JASP. In fact, these tools produce highly formatted content and are able to perform analysis and statistics on millions and billions of data records. Also, Statistical software has features to combat the common statistical errors related to categorical data analysis. Marketers, businesses, researchers, and concerned entity can use these statistical analysis software for their statistical requirements.

Install Apache Maven on Rocky Linux / CentOS 8 - Follow the steps here ?

This article covers how to install Apache Maven on Rocky Linux. You can now visit the Apache Maven Documentation page to learn how you can get started with managing Java projects with Apache Maven. In fact, Apache Maven Maven is a build automation tool used primarily for Java-based projects, but can also be used to build and manage projects written in C#, Ruby, Scala, and other languages.

Install Timeshift on Debian 10 - Step by Step Procedure ?

This article covers how to install Timeshift on Debian 10 from its stable repositories. Timeshift brings the System Restore feature in Windows or the Time Machine tool in macOS to Linux.


How to Restore Ubuntu, Debian & Linux Mint from Snapshot using Timeshift ?

  • To revert your system to Snapshot state, select the Snapshot you want to restore to and click the "Restore" tab on the top menu.
  • This will ask you to "Select target device" and options for /boot and /home.
  • Timeshift will Perform Dry run before doing the actual restore.
  • Confirm Actions to initiate Snapshot restore process.
  • Timeshift will start to sync Snapshot files to the root filesystem.
  • The system should reboot after the process is completed.

Install and Configure Redis on CentOS 8 - Step by Step Procedure ?

This article covers the complete Installation guide of Redis on the CentOS 8 system. Redis is an open-source in-memory data structure store. In fact, You can use it as a Memcached alternative to store simple key-value pairs, as a NoSQL database, or even a message broker with the Pub-Sub pattern.

Also, Redis supports data structures such as strings, hashes, lists, sets, sorted sets with range queries, bitmaps, HyperLogLogs and geospatial indexes with radius queries. Redis has built-in replication, Lua scripting, LRU eviction, transactions and different levels of on-disk persistence, and provides high availability via Redis Sentinel and automatic partitioning with Redis Cluster.

Automatic Kernel Updates on Linux - How to Configure it ?

This article covers the procedure on how to set up automatic kernel updates on Linux. In fact, Applying security updates to the Linux kernel is a simple process that can be done with tools like apt, yum, or kexec. 

For organizations with more than a few servers, live patching is the best option. It is an automatic way to fix the Linux kernel while the server is running, making it more efficient and safer than manual methods.

More about Loaded Kernel Modules and How to List their Information on a Linux Mint 20 System

This article covers how loaded kernel modules works in Linux. The kernel of a Linux system is the core that everything else in the operating system relies on. The functionality of the kernel can be extended by adding modules to it. As such, a user can fine tune their kernel settings by enabling or disabling modules. Now, you can list the information of these loaded kernel modules on your system's terminal.

Install NetBeans on Linux Mint 20 - Step by Step Process ?

This article covers the Installation process of NetBeans IDE on a Linux Mint 20 system. In fact, NetBeans is an IDE (Integrated Development Environment) application mainly used by developers to create applications using Java and other programming architectures like PHP and C++.


Features of NetBeans IDE includes:

  • A drag and drop GUI design tool for rapid UI development.
  • A feature-rich code editor with code templates & refactoring tools.
  • Integration tools such as GIT and mercurial.
  • Support for the latest Java technologies.
  • A rich set of community plugins.

Find DHCP Server IP Address in Linux Using CLI - Step by Step guide ?

This article covers the different ways of finding the IP address of your DHCP server in a Linux system. We have already dealth with how to install and configure DHCP server on Linux.


Linux System IP Scanning commands:

Scanning for IP address lets you have better control over your network. With a few commands, you can quickly map out the devices in your network and the IP addresses that they are using.

  • ipconfig: This command displays all network settings assigned to one or all adapters in the computer. You can find information such as your own IP, subnet, and Gateway. For Linux and MacOS is "ifconfig".
  • arp -a: When you issue the "arp -a", you’ll get IP-address-to-mac conversion and the allocation type (whether dynamic or static) of all devices in your network.
  • Ping: It helps determine connectivity between two hosts and find the IP address of a hostname.

Install CUDA on Ubuntu 20.04 - Step by Step Process ?

This article covers how to install CUDA on Ubuntu 20.04.

To install CUDA on Ubuntu,  execute the following commands:

$ sudo apt update
$ sudo apt install nvidia-cuda-toolkit

To Check your CUDA version, run the below command:

$ nvcc --version

Install Inkscape on Linux Mint 20 - Step by Step Process ?

This article covers Inkscape is an open source cross-platform vector graphics editor for Linux, Windows and Mac OS X. Inkscape basically supports SVG file generation and editing and supports PNG, OpenDocument Drawing, DXF, sk1, PDF, EPS and PostScript export formats. It comes with Color selector, Color picker, gradient editor, Pattern fills, Dashed strokes and Path markers.


How to Install Inkscape vector graphics editor on Ubuntu ?

1. You can download and Inkscape from the ubuntu software center or install it from the command line by adding its PPA. To install Inkscape via command line, open the terminal app and type and enter the below command:

$ sudo add-apt-repository ppa:inkscape.dev/stable

2. Then run the below command to update your system:

$ sudo apt-get update

3. Now, run the below command to install Inkscape on Ubuntu:

$ sudo apt-get install inkscape

Install MariaDB on Rocky Linux 8 - Step by Step Process ?

This article covers step-by-step installation procedure of the MariaDB server on Rocky Linux 8. In fact, MariaDB was developed as a "drop-in" replacement for MySQL. As such, both software packages are functionally equivalent and interchangeable.

To enable MariaDB service to start on boot time and start the service using the following commands:

$ sudo systemctl enable mariadb
$ sudo systemctl start mariadb

To verify the running status of MariaDB, run the below command:

$ sudo systemctl status mariadb

Install Cacti on Ubuntu 20.04 LTS - Step by Step Process ?

This article covers step by step procedure for installing the Cacti monitoring tool on Ubuntu 20.04 LTS. In fact, Cacti is a free and open-source RRD tool-based network monitoring tool that monitors network devices such as servers, routers, and switches. Cacti uses the SNMP protocol to gather data from remote systems. Data gathered is then stored in a MySQL database. 

One of the most essential tasks that any IT operation team has to keep in mind is continuous monitoring of their IT infrastructure. The concept of monitoring ensures that systems such as servers are functioning and working as desired.

Route Command in Linux with examples

This article covers how to use the route command in a Linux system with examples. Linux provides the ip route command in order to manage the routing table. The routing table is used to set routes for different destination IP addresses. Even there is a default route in most of the cases which are used to sent IP packets to the other networks we may need to add new routes via the command-line interface by using the ip route add command.


Important Linux commands:

  • arp — Manipulate the system ARP cache.
  • ifconfig — View or modify the configuration of network interfaces.
  • ip — Display and manipulate information about routing, devices, policy routing and tunnels.
  • netstat — Print information about network connections, routing tables, interface statistics, masquerade connections, and multicast memberships.

Fix the Error "Unable to Launch Cinnamon-Session-Cinnamon" in Linux Mint 20

This article covers steps to resolve the "cinnamon not found" error on a Linux Mint 20 machine. 

To fix this error, simply do the following:

1. Boot to the Linux mint version.

2. Wait for the login screen and login.

3. Get the error? Click ok.

4. Get the black screen? Type CTRL-Alt F1

5. Get the prompt?

6. Login with your name and password.

7. Install cinnamon by running the following commands:

$ sudo apt-get update
$ sudo apt-get install nemo
$ sudo apt-get install cinnamon
$ reboot

Top 11 Free and Open-Source Linux Distributions for Hacking

This article covers the best free and open-source Linux distributions that provide the most efficient and capable platform to learn and perform ethical hacking tasks such as BackBox, Kali Linux, Fedora Security Lab, Parrot OS, BlackArch Linux, and Dracos Linux. Choosing the best OS for Hacking & penetration testing is a good sign to learn ethical hacking and Penetration testing concepts to enhance your skills and protecting the enterprise assets from cybercriminals.

Install LAMP Stack on CentOS 8 - Step by Step Process ?

This article covers how to install the LAMP stack on the CentOS system. If are using another Linux distribution, visit how to install LAMP stack on Debian, Ubuntu, Red Hat, and Rocky Linux. Basically, A LAMP stack is a collection of open-source software that you can use as a platform to create websites and web applications. The term LAMP is an acronym standing for Linux operating system, the Apache HTTP Server, the MySQL database system, and the PHP programming language.


In LAMP:

  • Linux serves as the server's operating system that handles all the commands on the machine.
  • Apache is a web server software that manages HTTP requests to deliver your website's content.
  • MySQL is a relational database management system (RDBMS) whose function is to maintain user's data on a server.
  • PHP is a scripting language for server-side communication.

Install UTorrent in Ubuntu 20.04 - Step by Step Process ?

This article covers how to install uTorrent via the command line on Ubuntu 20.04 system. µTorrent provides clients for Windows and macOS X, however it is installed as a server in Ubuntu Linux and provides a web UI for managing downloads.

Install Eclipse IDE on Linux Mint 20 - Step by Step Process ?

This article covers steps to install Eclipse IDE on your LinuxMint 20 system. Eclipse is a well-known, widely used IDE (Integrated Development Environment) for developing Java applications and also developing applications in COBOL, Ada, C, C++, Perl, PHP, Python, R, Ruby, Clojure, Scala, Groovy, and Scheme. 

To launch eclipse from the terminal use the command :

$ eclipse

Install PgAdmin 4 on Rocky Linux 8 - Step by Step Process ?

This article covers how you can Install and easily get started with PgAdmin4 for your Linux system. pgAdmin is an advanced, open-source, full-featured, and web-based administration and management tool for the PostgreSQL database server.

Install AnyDesk on Linux Mint 20 - Step by Step guide ?

This article covers how to install AnyDesk on your Linux system which can be used as a remote desktop application for interacting with different devices and controlling them remotely. Anydesk application can be installed on Windows, Linux and macOS.

Top 9 Free and Open-Source Diagramming Tools

This article covers the best free and open-source diagramming tools that are widely adopted and adapted by individuals, companies, enterprises, and different institutes such as Diagrams.net, Dia, Calligra Flow, LibreOffice Draw, Apache OpenOffice Draw, Inkscape, Diagramo, and Pencil. 

The diagram app is quite helpful and valuable. You can build and visually shape your ideas to the audience by employing intuitive diagramming tools. The users can make beautiful diagrams from scratch with the help of diagram software technique. 

Top 6 Free and Best Open-Source GIS Software

This article covers top-performing free and open-source GIS software such as GRASS, OpenJump, gvSIG, QGIS, SPRING, and uDig. GIS software solutions demand has seen a growth in the past few years. The adoption of such software solutions is not limited to only the government organizations, space agencies, and forestry management companies anymore, rather many businesses are adopting such solutions to improve their businesses and ensure growth by performing location and area analysis and monitoring.

Install the Brackets Code Editor on Ubuntu 20.04 - Step by Step Guide ?

This article covers how you can install Brackets code editor on Ubuntu OS via either the command line or the GUI. Brackets is a powerful text editor focused on web development and especially on the frontend.


Features of Brackets code editor:
  • Cross-platform: It has binaries for Windows, Linux, and macOS. This makes the transition to Linux easy if you come from another system.
  • Open Source: With an open code, you can examine it. And above all, you will not have license problems.
  • Support extensions: Supports many different extensions that help even more with the functionality of the program.
  • Preprocessor Support: Work with preprocessors (LESS and SCSS) in a whole new way.
  • Live Preview: Get a real-time connection to your browser.
  • Inline Editors: Instead of jumping between file tabs, Brackets lets you Open a window into the code you care about most.

Install Timeshift on Linux Mint 20 - Step by Step Procedure ?

This article covers how to install Timeshift utility on Linux Mint system. Timeshift help in creating the backups of your precious data. Also,it is a fabulous tool that is used for the backup & restoration of the Linux operating system, it takes incremental backup after the first initial complete backup. TImeshit creates filesystem snapshots using Rsync or BTRFS. It has a nice GUI as well as support for CLI.

Install and Play Tetris on Ubuntu Linux System

This article covers different ways to Install Tetris on any Linux distribution.

To Install Tetris on your Ubuntu / Debian System:

1. Get your System updated and Ready for Installing Tetris clone Tint on it:

$ sudo apt update

2. Install the Available Variation of Tetris on your System:

$ sudo apt install tint

3. Launch Tint - Tetris like game - within your System's Terminal:

$ tint

Linux IP Command with Examples - An overview ?

This article covers the practical use cases of the Linux IP command. IP stands for Internet Protocol. IP command is used to show or manipulate routing, devices, and tunnels. It is similar to ifconfig command but it is much more powerful with more functions and facilities attached to it. It can perform several other tasks like configuring and modifying the default and static routing, setting up tunnel over IP, listing IP addresses and property information, modifying the status of the interface, assigning, deleting and setting up IP addresses and routes.


Linux system commands:

  • arp — Manipulate the system ARP cache.
  • ifconfig — View or modify the configuration of network interfaces.
  • netstat — Print information about network connections, routing tables, interface statistics, masquerade connections, and multicast memberships.
  • route — Display and manipulate the IP routing table.
  • tcpdump — Capture raw network traffic.

Install and Use Logwatch on Ubuntu 20.04 - Step by Step Guide ?

This article covers how to install and use Logwatch on Ubuntu Linux System. Logwatch is a system log analyzer and send that report to email. It generates a summarized log report which contains sshd - authentication failures, sudo - sessions opened, vsftp failures, postfix, failed logins, disk space and more. To find more information, visit the Logwatch man page.

Logwatch can be installed simply from the Ubuntu repository. First update the system.

$ sudo apt-get update

To install Logwatch, execute the command:

$ apt-get install logwatch

Install Zoom Client on AlmaLinux / Rocky Linux 8 - Step by Step guide ?

This article covers Zoom client's installation procedure. You can now proceed and start or join meetings with the security and reliability that Zoom provides.

Add and Remove Users in Debian 10 system - Step by Step Process ?

This article covers how you can easily remove or add a new user to your Debian 10 system. One of the most basic tasks that you should know how to do on a fresh Linux server is add and remove users. 

In order to add and delete users on Debian, you need to have sudo rights, or to belong to the sudo group.

To check your sudo rights, run the following command:

$ sudo -v

If no error messages appear, you are good to go, otherwise ask your system administrator to provide you with sudo rights.


How to add a user using useradd ?

Run the following command:

$ sudo useradd <username>

To assign a password to the user, you can use the -p flag but it is not recommended as other users will be able to see the password.

To assign a password to a user, use the passwd command:

$ sudo passwd <username>

Install Eclipse IDE on Ubuntu 20.04 - Step by Step Process ?

This article covers how you can either use the direct download or the snap method to install Eclipse IDE on your Ubuntu system. Eclipse is a really powerful IDE that supports many programming languages. It provides numerous plugins and extensions for enhancing the functionality of your Eclipse such as source code version control (git, svn), class diagram generator, GUI builder.


How to install JRE (Java Runtime Environment) on your Ubuntu machine ?

In order to install JRE (Java Runtime Environment) on your Ubuntu machine, run the commands:

$ sudo apt update
$ sudo apt install openjdk-14-jre

To verify that Java was successfully installed, let's run:

$ java --version

Df Command in Linux - How is works ?

This article covers how to use the df command in Linux. You can use the df command when you need to know how much space is available on a particular file system or to see an overview of mounted files systems.

If you want to display all the file system, use -a option:

df -a


Options for df command includes:

  • -a, –all : includes pseudo, duplicate and inaccessible file systems.
  • -B, –block-size=SIZE : scales sizes by SIZE before printing them.
  • -h, –human-readable : print sizes in power of 1024.
  • -H, –si: print sizes in power of 1000.
  • -i, –inodes : list inode information instead of block usage.
  • -l, –local : limit listing to local file systems.
  • -P, –portability : use POSIX output format.
  • –sync : invoke sync before getting usage info.
  • –total : elide all entries insignificant to available space, and produce grand total.
  • -t, –type=TYPE : limit listing to file systems of type TYPE.
  • -T, –print-type : print file system type.

Install Siege Benchmarking Tool on Ubuntu 20.04 - Step by Step Process ?

This article covers how to install Siege benchmarking tool on Ubuntu Linux System using two methods: using the APT and the tar.gz package. Siege allows you to test a web server with n number of users t number of times. Siege offers three modes of operation: Regression, internet simulation, and brute force.

Once the Siege is installed, you can verify the installed version of Siege using the following command:

$ siege --version

Install Adobe Acrobat Reader in Ubuntu 20.04 - Step by Step Process ?

This article covers how to install and use Adobe acrobat reader to view PDF files on your Ubuntu 20.04 system.

Set Up OpenVPN on Ubuntu 20.04 - Step by Step Process ?

This article covers method to set up OpenVPN on Ubuntu 20.04. OpenVPN is a full featured, open-source Transport Layer Security (TLS) VPN solution that accommodates a wide range of configurations. OpenVPN is an open-source, fast, popular program for creating a VPN (Virtual Private Network). It uses both the TCP and UDP transmission protocols, and VPN tunnels are secured with OpenVPN protocol with SSL/TLS authentication, certificates, credentials, and optionally MAC address lock as well as multi-factor authentication.

Here, you will set up OpenVPN on an Ubuntu 20.04 server, and then configure it to be accessible from a client machine.

To confirm that the OpenVPN service is up and running by checking its status using the following systemctl command:

$ sudo systemctl status openvpn

Install uTorrent on Linux Mint 20 - Step by Step Process ?

This article covers how to Install uTorrent on a Linux Mint 20 system. The µTorrent is designed to use minimal computer resources while offering functionality comparable to larger BitTorrent clients such as Vuze or BitComet and also it provides performance, stability, and support for older hardware and versions of the operating system.

uTorrent server will start on port 8080 on the local system.

Open a web browser and connect to your system on port 8080 as below URL:

http://localhost:8080/gui/
Username: admin
Password: <keep it empty>

Install Siege on Linux Mint 20 - Step by Step Process ?

This article covers how to quickly install the Siege tool on your Linux system and use it to test any specific web server. Siege is an open-source multi-threaded regression test and benchmark utility with a primary focus on load testing and benchmarking. It can stress test a single URL with a user-defined number of simulated users or read many URLs into memory and stress them simultaneously. The program reports the total number of hits recorded, bytes transferred, response time, concurrency, and return status.


To Install Siege Benchmarking Tool on Ubuntu / Debian,

1. Check and update your Ubuntu 20.04 operating system:

$ sudo apt update && sudo apt upgrade -y

2. Install Siege execute the following command:

$ sudo apt install siege -y

3. Confirm the siege version to make sure it's installed and to compare it to the current version from Siege's official website:

$ siege --version

Install and Use Logwatch on Linux Mint 20 - Step by Step Process ?

This article covers how to install the Logwatch utility on your Linux server. With Logwatch, you will be able to keep an eye on your server logs and hence, you can quickly figure out any possible issues.

You can easily customize Logwatch to your preference by modifying the parameters in the /etc/logwatch/conf path. It also provides something extra in the way of pre-written PERL scripts for making log parsing easier.

All the default settings are defined in the /usr/share/logwatch/default.conf/logwatch.conf file. The recommended practice is to leave this file intact and instead create your own configuration file at the /etc/logwatch/conf/ path by copying the original config file and then define your custom settings.


Logwatch comes with a tiered approach and there are 3 main locations where configuration details are defined:

  • /usr/share/logwatch/default.conf/*
  • /etc/logwatch/conf/dist.conf/*
  • /etc/logwatch/conf/*


To install Logwatch on your server.

On Ubuntu:

$ sudo apt-get install logwatch

On Debian:

$ apt-get install logwatch

Install Grafana on Ubuntu 20.04 - Step by Step Process ?

This article covers how to install Grafana on Ubuntu OS using two methods: using the APT repository and the .deb package. Grafana is multi-platform open-source analytics and interactive visualization web application that integrates with complex data from sources like Prometheus, InfluxDB, Graphite, and ElasticSearch. It provides charts, graphs, and alerts for the web when connected to supported data sources. It is expandable through a plug-in system.