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Topics related to apache error

Unable to find the User entry – Fix Apache Web Agent Installation Error

This article covers how to fix Unable to find the User entry Apache Web Agent Installation Error.

This arror happens when we fail to set the user and group in the Apache httpd.conf file. Also, You will see "Unable to find the "User" entry in the httpd.conf file, will try APACHE_RUN_USER environment variable" and/or "Unable to find the "Group" entry in the httpd.conf file, will try APACHE_RUN_GROUP environment variable" errors.

To resolve this Apache error:
1. Check whether the user and group are set; you can do this via the httpd.conf file or equivalent file (such as envvars). For example:
a. Review the httpd.conf file and check whether the user and group are set. By default, they are set to apache, for example:

$ cat httpd.conf | grep 'User\|Group'
...
User apache
Group apache
..

If they are not set, you should set them; you can set them to apache or nobody.
b. Review the envvars file to ensure the user and group are set in the APACHE_RUN_USER and APACHE_RUN_GROUP environment variables. For example:

$ cat envvars | grep 'APACHE_RUN_USER\|APACHE_RUN_GROUP'
export APACHE_RUN_USER=apache
export APACHE_RUN_GROUP=apacheIf they are not set, you should set them; you can set them to apache or nobody.

2.     Review the passwd and group files to check whether the user and group match what is set in your httpd.conf file or equivalent. For example:

$ cat /etc/passwd | grep apache
apache:x:48:48:apache:/usr/share/httpd:/sbin/nologin
$ cat /etc/group | grep apache
apache:x:48:


If they are not set, you should set them to match what is in the httpd.conf file or equivalent.

Configure Varnish with Apache - How to do it

This article covers how to configure Varnish #cache on the #Apache server. Varnish is an HTTP accelerator and a useful tool for speeding up a server, especially during a times when there is high traffic to a site. 

It works by redirecting visitors to static pages whenever possible and only drawing on the virtual private server itself if there is a need for an active process.

#Varnish is a caching HTTP reverse proxy. It receives requests from clients and tries to answer them from the cache.


Where is varnish configuration file?

The Varnish configuration file will be located in the /etc/varnish directory in CentOS 7. 

To make Varnish work in front of Apache, you will need to set up some basic configurations. 

By default Varnish listens on port 6081 . 

You will need to change port 6081 to 80 so that website requests access the Varnish cache first.


What is varnish WordPress?

Varnish is a full-page cache and HTTP preprocessor which can be used to speed up requests for a WordPress site. 

Setting up Varnish is a technical task, as it requires installing and configuring a system package on a web server, rather than just installing a plugin.

FreeBSD Apache Jail Connection refused connect to listener failed

This article covers how to fix 'FreeBSD Apache Jail: Connection refused' issue for our customers. 

While running Apache 2 server under FreeBSD jail, you may see a warning error messages in /var/log/httpd-error.log as follows:

[warn] (61)Connection refused: connect to listener on 0.0.0.0:80


To resolve this FreeBSD Apache Jail error:

1. You need to always set your actual, real IP. Open httpd.conf

# vi /usr/local/etc/apache22/httpd.conf

2. Find out Listen directive:

#Listen 12.34.56.78:80

Listen directive allows you to bind Apache to specific IP addresses and/or ports, instead of the default. 

Change this to Listen on specific IP addresses as shown below to prevent Apache from glomming onto all bound IP addresses i.e. 0.0.0.0 which is not available in jail

3. Save and close the file. Restart apache:

# /usr/local/etc/rc.d/apache22 restart

MySQL error log cPanel

This article will guide you on more information about MySQL error logs and methods to resolve its errors. 

You will learn how to fix MySQL errors, crashes and other unexpected behavior from #MySQL. 

To view mysql error logs:

1. edit /etc/my.cnf [mysqld] log=/tmp/mysql.log.

2. restart the computer or the mysqld service service mysqld restart.

3. open phpmyadmin/any application that uses mysql/mysql console and run a query.

4. cat /tmp/mysql.log ( you should see the query ).

To Clear cPanel Error Log:

1. Login to your server using an #SSH client.

2. To clear the #Apache #errors, type the following and press Enter. cat /dev/null> /usr/local/apache/logs/error_log.

3. To delete PHP error_log files, type the following and press Enter. find /home -type f -name error_log -delete.

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.

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).

SSLRandomSeed cannot occur within VirtualHost section

This article will guide you on how to fix SSLRandomSeed cannot occur within VirtualHost section which triggers when the #SSLRandomSeed directive is specified inside the #VirtualHost section. 

How to resolve apache not listening on port 443

This guide will help you to solve Apache not listening on port 443 which occurs as a result of Incorrect configuration settings, firewall restrictions and other factors.

How to fix SSLSessionCache shmcb session cache not supported

SSLSessionCache: 'shmcb' error is usually triggered after upgrading the Apache from 2.2. to 2.4 version.

Solution to invalid command SSLEngine Error in apache

Effective method of fixing Invalid command SSLEngine Error in Apache web server.

Solving Apache error client denied by server configuration

Are you facing "Apache error client denied by server configuration" web server issue? Let us solve it for you!

Resolving Apache error 1066

Solving Apache error 1066 issues by fixing errors in the web server configuration file.

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