Varnish Cache installation and use instructions for Debian GNU/Linux 11 were published by Howtoforge.
How to Install and Use Varnish Cache on Debian 11
Varnish Cache is an open-source, powerful, and one of the most popular HTTP accelerators used by over 3.4 million websites. It can be used as a reverse caching proxy specially designed for high-traffic dynamic websites. It is used to cache content in front of the web server. It works by caching content in memory. When a user requests a cached page, Varnish serves the cached copy instead of requesting the same page again and again from the backend server. Many VPS hosting providers use it makes as part of their technology stack to improve website performance.
