How to Install Citadel on Ubuntu Server

Citadel is an open source groupware server that provides email, calendaring, address books, bulletin board, instant messaging, and more. In this tutorial, we will show you how to install Citadel on Ubuntu Server.

Prerequisites

  • Ubuntu Server 20.04 LTS or later version
  • Root or sudo user access

Step 1: Update and Upgrade Your System

Before starting the installation process, it is recommended to update and upgrade the Ubuntu server packages to their latest version using the following command:

sudo apt-get update && sudo apt-get upgrade -y

Step 2: Install Dependencies

Citadel requires several dependencies to be installed on the server. Run the following command to install them:

sudo apt-get install gcc make libssl-dev libdb-dev automake autoconf libtool libncurses5-dev libidn11-dev libwrap0-dev libpam0g-dev libgdbm-dev libexpat-dev libdb5.3-dev bison flex libical-dev libical3

Step 3: Download and Install Citadel

Follow the below steps to download and install Citadel on Ubuntu Server:

  1. Download the latest stable release of Citadel from the following link: https://www.citadel.org/doku.php/downloads.

  2. Extract the Citadel archive file:

tar -zxvf citadel-latest.tar.gz
  1. Enter into the extracted directory:
cd citadel
  1. Run the configuration command:
./configure
  1. Run the make command:
make
  1. Run the make install command:
sudo make install

Step 4: Configure and Start Citadel

The next step is to configure and start the Citadel server.

  1. Run the setup script:
sudo /usr/local/citadel/setup

  1. Follow the setup instructions to configure the Citadel server. You will be prompted to enter the domain name and administrator email address.

  2. Start the Citadel server:

sudo systemctl start citadel
  1. Make sure that the Citadel service is running properly:
sudo systemctl status citadel

The output should show "active (running)".

Conclusion

In this tutorial, you learned how to install Citadel on Ubuntu Server. You can now use Citadel to manage your email, calendars, address book, bulletin board, and more.