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Tutorial on Setting Up a VPN Connection on Ubuntu 26.04
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VPNs are used to create a more secure connection between a client computer and a target network over the internet. This guide will explain how to connect Ubuntu to an L2TP/IPsec VPN server so that Linux devices can securely access the network from different locations.
L2TP/IPsec was chosen because it’s a widely used protocol and compatible with various operating systems, including Linux, Windows, macOS, Android, and iOS. On Ubuntu, L2TP/IPsec connections can be configured using Network Manager with the appropriate supporting packages. IPsec encrypts data traffic between the client and server, making the connection more secure.
Through this tutorial, you will learn the process of installing the necessary components, creating a VPN profile, filling in server information, until Ubuntu successfully connects to the VPN server using L2TP/IPsec.
- Make sure you have the information needed to connect to the VPN. In this tutorial, we’ll use
the VPN server: vpn.testserver.net
Username: user01
Password: comet123
IPSec preshared key: comet12345678
Server in the remote area: 10.1.1.11 - By default Ubuntu 26.04 does not have a utility to connect via L2TP VPN, open a terminal with the shortcut CTRL + ALT + T and install the required packages through the terminal with the following command (make sure you have sudoers access)
sudo apt install network-manager-l2tp network-manager-l2tp-gnome -y
- Once the L2TP package installation is complete, access your network settings by clicking on the active connection, then the Wired Settings menu (adjust if your connection is wireless). This will eventually take you to Network Settings.
Click the Add VPN menu and select L2TP.
- Complete the configuration fields, starting with Profile Name, Gateway (VPN server address), User Auth settings, which in this case are the username and password.
Continue by clicking the IPsec settings menu and Enable IPsec tunnel to L2TP host. Fill in the pre-shared key according to the information you already have.
Finish by clicking Apply and Add.
- In the VPN profile that has been created, click the toggle button to activate the VPN connection.
If the connection is successful, a VPN icon will appear in the top right corner next to the network indicator.
- Test the VPN connection by pinging the remote server 10.1.1.11
