Citadel is an open-source groupware and collaboration platform that includes email, calendaring, address books, bulletin boards, instant messaging, and more. Installing Citadel on your Elementary OS can be done easily with a few steps.
Before proceeding with the installation process, make sure to have the following requirements:
The installation process of Citadel on Elementary OS involves adding the Citadel Repository, updating the package list, and installing the Citadel.
First, open a terminal by pressing Ctrl+Alt+T. Then add the Citadel Repository key by importing it using the following command:
sudo apt-key adv --recv-keys --keyserver keyserver.ubuntu.com 0CCE922E
Next, add the Citadel Repository to your Elementary OS package manager using the following command:
sudo sh -c 'echo "deb [arch=amd64] http://packages.citadel.org/ubuntu $(lsb_release -sc) citadel" >> /etc/apt/sources.list.d/citadel.list'
After adding the repository, update the package list to incorporate the changes you have made by running the following command:
sudo apt update
Finally, to install Citadel, all that is needed is to run the following command:
sudo apt install citadel-suite
After the installation completes, you can verify that Citadel is running correctly by visiting the following page in your system's web browser:
http://localhost/
You can configure the Citadel server via the web panel, which can be accessed via the same URL. For security reasons, it is recommended to change the default password for the admin account.
Citadel installation on Elementary OS is now complete, and you can now explore its capabilities and services. This groupware provides a variety of helpful features, such as email, instant messaging, calendaring, and more, that will increase your productivity and make collaboration with other team members easier.
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