Install Varnish Cache 5.1 for Apache on Debian 9 / Ubuntu 16.04
Varnish Cache (simply called Varnish) is an open source high-performance web (HTTP) accelerator. It sits in front of a web server as a cache agent and serves web pages to visitors in a much faster way. Varnish stores data (cache) in virtual memory for faster loading of frequent web pages when requested by a visitor. […]