Install ‘Varnish’
On Debian and Ubuntu
aptitude update && aptitude install varnish
On RHEL, CentOS and Fedora
yum update && yum install varnish
Enter the following command to display the version of Varnish you are running
varnishd -V
Enable it to start on boot
On Debian, Ubuntu
service varnish start service varnish status chkconfig --level 345 varnish on
On CentOS/RHEL 7.x and Fedora 21
systemctl start varnish systemctl status varnish system enable varnish
Source
Install Varnish
Configure and use Varnish
How to Install ‘Varnish’ (HTTP Accelerator) and Perform Load Testing Using Apache Benchmark
