Install Varnish 5 With Nginx on FreeBSD 11

Varnish is an open source cache server which stores content from a web server. It is installed in front of a web server such as Apache or Nginx. The caching mechanism offered by Varnish allows content delivery with high performance.

In this tutorial, you will learn how to install Varnish cache 5 as a front end to the Nginx web server on FreeBSD 11.

Prerequisites

• A Vultr 64-bit FreeBSD 11 server instance.

• A sudo user.

Step 1: Perform a system update

Before installing any packages on the FreeBSD server instance, it is recommended to update the system. Log in using the sudo user and run the following commands to update the system.

sudo pkg update

sudo pkg upgrade

Step 2: Install Nginx

As we are going to install Varnish in front of Nginx, start by installing the Nginx web server.

sudo pkg install nginx

The above command will install the most recent stable port of Nginx available from the default repository of FreeBSD.

To enable Nginx to automatically start at boot time, run the following command.

sudo sysrc nginx_enable=yes

Start Nginx by running the following command.

sudo service nginx start

You will see the following output when Nginx starts.

$ sudo service nginx start

Performing sanity check on nginx configuration:

nginx: the configuration file /usr/local/etc/nginx/nginx.conf syntax is ok

nginx: configuration file /usr/local/etc/nginx/nginx.conf test is successful

Starting nginx.

Try to visit the default web page of Nginx by visiting http://Vultr_Server_IP to verify your installation.

Step 3: Configure Nginx

By default, Nginx listens to port 80, which is the default port for HTTP. As we plan to run Nginx behind Varnish, we will need to change the port of Nginx. Open the default Nginx configuration file using your favorite editor.

sudo nano /usr/local/etc/nginx/nginx.conf

Run sudo pkg install nano if you wish to install nano. Find the lines:

 server {

        listen       80;

        server_name  localhost;

Change the "listen" port from 80 to 8080.

Restart the Nginx server.

sudo service nginx restart

Step 4: Install and configure Varnish

Now that we have configured Nginx, install Varnish 5 by typing:

sudo pkg install varnish5

Once installed, add Varnish cache to the system's rc.conf file by running the following commands:

sudo sysrc varnishd_enable=YES

sudo sysrc varnishd_listen=":80"

sudo sysrc varnishd_backend="localhost:8080"

sudo sysrc varnishd_storage="malloc,512M"

sudo sysrc varnishd_admin=":8081"

The above commands will create few entries in the rc.conf file. varnishd_listen specifies that the Varnish cache server will listen to port '80'. It will enable Varnish cache to automatically start at boot time. varnishd_backend specifies the server running on the backend. In our case, it is Nginx web server running on port 8080. varnishd_storage specifies the cache storage method. You can use malloc or file method. malloc is fast as it uses memory to store the cache. Here, you can specify the amount of RAM varnish can use to store its cache.

Finally, start the server by running:

/usr/local/etc/rc.d/varnishd start

You can now check if varnish is running successfully by browsing to: http://Vultr_Server_IP.

You can stop the server by running:

/usr/local/etc/rc.d/varnishd stop

Varnish cache 5 with Nginx as the backend server is now installed on your FreeBSD 11 server.