How To Install ocserv on Ubuntu 22.04
Introduction
In this tutorial we learn how to install ocserv on Ubuntu 22.04.
What is ocserv
ocserv is:
OpenConnect server (ocserv) is an SSL VPN server. Its purpose is to be a secure, small, fast and configurable VPN server. It implements the OpenConnect SSL VPN protocol, and has also (currently experimental) compatibility with clients using the AnyConnect SSL VPN protocol. The OpenConnect VPN protocol uses the standard IETF security protocols such as TLS 1.2, and Datagram TLS to provide the secure VPN service. The server is implemented primarily for the GNU/Linux platform but its code is designed to be portable to other UNIX variants as well.
Ocserv’s main feature is isolation of the VPN users from the main VPN server process. Each authenticated user is assigned an unprivileged worker process, and a networking (tun) device. That not only eases the control of the resources of each user or group of users, but also prevents privilege escalation due to any bug on the VPN handling (worker) server. Each VPN user can be authenticated using password, PAM, public key (in a smart card or not) or any combination of methods.
There are three methods to install ocserv on Ubuntu 22.04. We can use apt-get, apt and aptitude. In the following sections we will describe each method. You can choose one of them.
Install ocserv Using apt-get
Update apt database with apt-get using the following command.
sudo apt-get update
After updating apt database, We can install ocserv using apt-get by running the following command:
sudo apt-get -y install ocserv
Install ocserv Using apt
Update apt database with apt using the following command.
sudo apt update
After updating apt database, We can install ocserv using apt by running the following command:
sudo apt -y install ocserv
Install ocserv 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 ocserv using aptitude by running the following command:
sudo aptitude -y install ocserv
How To Uninstall ocserv on Ubuntu 22.04
To uninstall only the ocserv package we can use the following command:
sudo apt-get remove ocserv
Uninstall ocserv And Its Dependencies
To uninstall ocserv and its dependencies that are no longer needed by Ubuntu 22.04, we can use the command below:
sudo apt-get -y autoremove ocserv
Remove ocserv Configurations and Data
To remove ocserv configuration and data from Ubuntu 22.04 we can use the following command:
sudo apt-get -y purge ocserv
Remove ocserv configuration, data, and all of its dependencies
We can use the following command to remove ocserv configurations, data and all of its dependencies, we can use the following command:
sudo apt-get -y autoremove --purge ocserv
References
Summary
In this tutorial we learn how to install ocserv package on Ubuntu 22.04 using different package management tools: apt, apt-get and aptitude.
