How To Install citadel-server on Ubuntu 20.04
Introduction
In this tutorial we learn how to install citadel-server on Ubuntu 20.04.
What is citadel-server
citadel-server is:
Citadel is a complete and feature-rich open source groupware platform.
- Email, calendaring/scheduling, address books
- Bulletin boards, mailing list server, instant messaging
- Multiple domain support
- An intuitive, attractive AJAX-style web interface
The Citadel system is extremely versatile. It provides numerous front ends to present to users, such as a text-based interface, an AJAX-style web interface, and many popular PIM clients using SMTP/POP/IMAP. All of these can be used simultaneously.
It’s also extremely scalable. Not only can a well-equipped Citadel server support a large number of concurrent users, but you can also build a distributed network of Citadel nodes that share rooms and their content.
There are three methods to install citadel-server on Ubuntu 20.04. We can use apt-get, apt and aptitude. In the following sections we will describe each method. You can choose one of them.
Install citadel-server Using apt-get
Update apt database with apt-get using the following command.
sudo apt-get update
After updating apt database, We can install citadel-server using apt-get by running the following command:
sudo apt-get -y install citadel-server
Install citadel-server Using apt
Update apt database with apt using the following command.
sudo apt update
After updating apt database, We can install citadel-server using apt by running the following command:
sudo apt -y install citadel-server
Install citadel-server 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 Ubuntu. Update apt database with aptitude using the following command.
sudo aptitude update
After updating apt database, We can install citadel-server using aptitude by running the following command:
sudo aptitude -y install citadel-server
How To Uninstall citadel-server on Ubuntu 20.04
To uninstall only the citadel-server package we can use the following command:
sudo apt-get remove citadel-server
Uninstall citadel-server And Its Dependencies
To uninstall citadel-server and its dependencies that are no longer needed by Ubuntu 20.04, we can use the command below:
sudo apt-get -y autoremove citadel-server
Remove citadel-server Configurations and Data
To remove citadel-server configuration and data from Ubuntu 20.04 we can use the following command:
sudo apt-get -y purge citadel-server
Remove citadel-server configuration, data, and all of its dependencies
We can use the following command to remove citadel-server configurations, data and all of its dependencies, we can use the following command:
sudo apt-get -y autoremove --purge citadel-server
References
Summary
In this tutorial we learn how to install citadel-server package on Ubuntu 20.04 using different package management tools: apt, apt-get and aptitude.
