Type:
sudo apt-get install varnish
Starting from Varnish Cache 5.0, we’ve simplified our packaging down to two: the main package and a development package.
The official Varnish Cache repository is now hosted at Packagecloud.io. Note that while Packagecloud.io provides Bash Script installs, we recommend using the manual installation procedures.
Instructions for installing the official repository which contains the newest Varnish Cache 6 release are available at:
With the release of 6.0.2, users have to switch to switch repositories to get the latest version. Read more about this on Release 6.0.2.
To use Varnish Cache 4.1 packages from the official varnish-cache.org repos, follow the instructions available at:
Copyright © 2006 Verdens Gang AS
Copyright © 2006–2020 Varnish Software AS
Licensed under the BSD-2-Clause License.
https://varnish-cache.org/docs/6.5/installation/install_debian.html