Ubuntu Install Tinc and Set Up a Basic VPN

Tinc is a virtual private network (VPN) software that is used to create a secure network connection between multiple computers. You can use Tinc to set up a basic VPN on Ubuntu Linux.

To install Tinc and set up a basic VPN on Ubuntu, you can use the following steps:

1. Install the Tinc package by running the following command:

sudo apt-get install tinc

2. Create a directory for the VPN configuration by running the following command:

sudo mkdir /etc/tinc/myvpn

Replace myvpn with the desired name of your VPN.

3. Change to the VPN configuration directory:

cd /etc/tinc/myvpn

4. Generate a private/public key pair for the VPN by running the following command:

tincd -n myvpn -K

Replace myvpn with the name of your VPN. This will generate a private/public key pair and store it in the /etc/tinc/myvpn directory.

5. Create a tinc.conf file in the VPN configuration directory with the following contents:

Name = hostname
Device = /dev/net/tun
Mode = switch

Replace hostname with the hostname of the machine. This will configure Tinc to use the tun device and operate in switch mode.

6. Create a tinc-up script in the VPN configuration directory with the following contents:

#!/bin/bash
ifconfig $INTERFACE 10.0.0.1 netmask 255.255.255.0

This script will configure the VPN interface with the IP address 10.0.0.1 and a netmask of 255.255.255.0.

7. Make the tinc-up script executable by running the following command:

chmod +x tinc-up

8. Start the Tinc daemon by running the following command:

tincd -n myvpn

Replace myvpn with the name of your VPN.

That's it! Tinc should now be installed and configured on your Ubuntu system, and the VPN should be up and running. To connect to the VPN from other computers, you will need to configure them with the VPN's public key and the tinc.conf and tinc-up scripts.

Keep in mind that this is a basic VPN setup. You can customize the VPN configuration by modifying the tinc.conf and tinc-up scripts and adding additional configuration files. For more information on configuring Tinc, you can refer to the Tinc documentation.