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.