How to Install StrongSwan on Clear Linux Latest

StrongSwan is an open-source VPN solution that supports various protocols such as IKEv1, IKEv2, and EAP. This tutorial will guide you through the process of installing StrongSwan on Clear Linux Latest.

Prerequisites

  • A Clear Linux machine with administrator privileges
  • An internet connection

Installation

  1. Open the terminal on your Clear Linux machine

  2. Run the following command to update the package index:

    sudo swupd update

  3. Install the strongswan package using the following command:

    sudo swupd bundle-add strongswan

  4. StrongSwan has been installed on your Clear Linux machine!

    You can check the installation by running the following command:

    sudo ipsec version

    The command should output the version of the StrongSwan installed on your machine.

Configuration

After the installation, you can start configuring StrongSwan.

  1. The configuration file for StrongSwan is located at /etc/strongswan.conf. You can edit the configuration file using any editor.

    For example, using the nano editor, run the following command:

    sudo nano /etc/strongswan.conf

  2. In the configuration file, you can specify the various settings for StrongSwan.

    For example, you can specify the remote network setting using the following configuration:

    conn myvpn
    left=%defaultroute
    leftsubnet=0.0.0.0/0
    leftfirewall=yes
    right=vpn.example.com
    rightsubnet=192.168.1.0/24
    rightfirewall=yes
    auto=start
    ike=aes256-sha256-modp2048,3des-sha1-modp1024
    esp=aes256-sha256,3des-sha1

    This configuration will connect to the remote network vpn.example.com with the leftsubnet and rightsubnet being 0.0.0.0/0 and 192.168.1.0/24 respectively.

  3. Save and close the configuration file using the keyboard shortcut Ctrl+X, Y, then Enter.

  4. Reload StrongSwan using the following command:

    sudo systemctl restart strongswan

    The changes made in the configuration file will take effect.

Congratulations! You have successfully installed and configured StrongSwan on your Clear Linux machine.