How To Install strongswan on Ubuntu 20.04
Introduction
In this tutorial we learn how to install strongswan on Ubuntu 20.04.
What is strongswan
strongswan is:
The strongSwan VPN suite uses the native IPsec stack in the standard Linux kernel. It supports both the IKEv1 and IKEv2 protocols.
This metapackage installs the packages required to maintain IKEv1 and IKEv2 connections via ipsec.conf or ipsec.secrets.
Package: strongswan Architecture: all Version: 5.8.2-1ubuntu3 Priority: optional Section: net Origin: Ubuntu Maintainer: Ubuntu Developers [email protected] Original-Maintainer: strongSwan Maintainers [email protected] Bugs: https://bugs.launchpad.net/ubuntu/+filebug Installed-Size: 179 Depends: strongswan-charon, strongswan-starter Filename: pool/main/s/strongswan/strongswan_5.8.2-1ubuntu3_all.deb Size: 18168 MD5sum: 53d3fb6168a9bd0f912396cb7f705ffc SHA1: 6667e8a4c632c8061466cec2de45c804161d743b SHA256: 2dd3340f2b809422e290436fec6294bff18dc6e6eda980b3936f7eabf6da494c Homepage: http://www.strongswan.org Description-en: IPsec VPN solution metapackage The strongSwan VPN suite uses the native IPsec stack in the standard Linux kernel. It supports both the IKEv1 and IKEv2 protocols.
This metapackage installs the packages required to maintain IKEv1 and IKEv2 connections via ipsec.conf or ipsec.secrets.
There are three methods to install strongswan 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 strongswan Using apt-get
Update apt database with apt-get using the following command.
sudo apt-get update
After updating apt database, We can install strongswan using apt-get by running the following command:
sudo apt-get -y install strongswan
Install strongswan Using apt
Update apt database with apt using the following command.
sudo apt update
After updating apt database, We can install strongswan using apt by running the following command:
sudo apt -y install strongswan
Install strongswan 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 strongswan using aptitude by running the following command:
sudo aptitude -y install strongswan
How To Uninstall strongswan on Ubuntu 20.04
To uninstall only the strongswan package we can use the following command:
sudo apt-get remove strongswan
Uninstall strongswan And Its Dependencies
To uninstall strongswan and its dependencies that are no longer needed by Ubuntu 20.04, we can use the command below:
sudo apt-get -y autoremove strongswan
Remove strongswan Configurations and Data
To remove strongswan configuration and data from Ubuntu 20.04 we can use the following command:
sudo apt-get -y purge strongswan
Remove strongswan configuration, data, and all of its dependencies
We can use the following command to remove strongswan configurations, data and all of its dependencies, we can use the following command:
sudo apt-get -y autoremove --purge strongswan
References
Summary
In this tutorial we learn how to install strongswan package on Ubuntu 20.04 using different package management tools: apt, apt-get and aptitude.
