How To Install varnish on Debian 10
Introduction
In this tutorial we learn how to install varnish on Debian 10.
What is varnish
varnish is:
Varnish Cache is a state of the art web accelerator written with performance and flexibility in mind.
Varnish Cache stores web pages in memory so web servers don’t have to create the same web page over and over again. Varnish serves pages much faster than any application server; giving the website a significant speed up.
Some of the features include:
- A modern design
- VCL - a very flexible configuration language
- Load balancing with health checking of backends
- Partial support for ESI - Edge Side Includes
- URL rewriting
- Graceful handling of “dead” backends
There are three methods to install varnish on Debian 10. We can use apt-get, apt and aptitude. In the following sections we will describe each method. You can choose one of them.
Install varnish Using apt-get
Update apt database with apt-get using the following command.
sudo apt-get update
After updating apt database, We can install varnish using apt-get by running the following command:
sudo apt-get -y install varnish
Install varnish Using apt
Update apt database with apt using the following command.
sudo apt update
After updating apt database, We can install varnish using apt by running the following command:
sudo apt -y install varnish
Install varnish Using aptitude
If you want to follow this method, you might need to install aptitude first since aptitude is usually not installed by default on Debian. Update apt database with aptitude using the following command.
sudo aptitude update
After updating apt database, We can install varnish using aptitude by running the following command:
sudo aptitude -y install varnish
How To Uninstall varnish on Debian 10
To uninstall only the varnish package we can use the following command:
sudo apt-get remove varnish
Uninstall varnish And Its Dependencies
To uninstall varnish and its dependencies that are no longer needed by Debian 10, we can use the command below:
sudo apt-get -y autoremove varnish
Remove varnish Configurations and Data
To remove varnish configuration and data from Debian 10 we can use the following command:
sudo apt-get -y purge varnish
Remove varnish configuration, data, and all of its dependencies
We can use the following command to remove varnish configurations, data and all of its dependencies, we can use the following command:
sudo apt-get -y autoremove --purge varnish
Dependencies
varnish have the following dependencies:
References
Summary
In this tutorial we learn how to install varnish package on Debian 10 using different package management tools: apt, apt-get and aptitude.