How To Install Varnish 4 on CentOS 7

Varnish is a proxy and cache, or HTTP accelerator, designed to improve performance for busy, dynamic web sites. By redirecting traffic to static pages whenever possible, varnish reduces the number of dynamic page calls, thus reducing load.

Step 1: Add the EPEL Repository

Varnish is part of Extra Packages for Enterprise Linux (EPEL), which is a community repository of non-standard packages for the RHEL distribution. First, we’ll install the EPEL repository:

rpm -iUvh

Step 2: Install Varnish

First, you’ll follow a simple best practice: ensuring the list of available packages is up to date before installing anything new.

yum -y update

At this point, installing Varnish is as simple as running just one command:

yum -y install varnish

Step 3: Start Varnish

To configure varnish to start at boot, run the following command:

systemctl enable varnish

To start varnish, run the following command as root:

systemctl start varnish

To check the status of varnish, run the following command as root:

systemctl status varnish

Check the version of Varnish that is running:

varnishd -V

Varnish is configured to listen on port 6081 by default. It expects your web server to be local, or on the same serve,r and listening on port 8080.

Step 4: Configuration File Locations

A basic and default configuration file can be found at:


An example configuration can be found in example.vcl:


To view or edit example.vcl:

vim /usr/share/doc/varnish-4.0.1/example.vcl

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