Set Up WireGuard on Ubuntu Linux

Summary of Successful Path – path through the maze

• wireguard   –  wireguard comes with Ubuntu installs already
• Install resolvconf:  sudo apt install resolvconf
• Installing the WireGuard Client App on Ubuntu   –  First install did not require.  Second install did this. 
• Use Mulivad VPN site to generate a configuration ( .conf ) file
• Place config file in /etc/wireguard   You will have to create /wireguard
• File must have the .conf extension:  VpnFile.conf
• Server is taken care of by the fact I'm using Mulivad
• Use command   wg-quick up VpnFile    ( note: no .conf extension here! )
• Test with WhatIsMyIP shows IP located in Chicago

Where to go next

• How to add GUI options for Wireguard into Ubuntu 20.04 Desktop

Process Notes – the maze I started with

• resolvconf – was not installed.  Errored out before Wireguard could run
• At first IIRC – I got an error when I tried to use FullFileName.conf ( with extension – ( still do )
• CONF file does not work without the .conf extention
• Works:  wg-quick up wg0
• Does not work:  wg-quick up wg0.conf
• IIRC:  Part of the problem is that I was trying to test with my home wireguard server that now appears to be down

Research Links

• WireGuard.com:  Wireguard overview
• Introduction to WireGuard VPN
•  
• WireGuard Installation
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• How to Set Up a WireGuard Client on Linux with .conf File
• How To Set Up WireGuard on Ubuntu 20.04 – Only used the first part for install of wireguard since I am using Mulivad. This takes the server issue out of the problem
• How to Set Up WireGuard VPN Client on Ubuntu Desktop – Only used the first part for install of wireguard since I am using Mulivad. This takes the server issue out of the problem
•  
• Mulivad:  WireGuard configuration file generator – Used this to generate the .conf file.  Store off with .conf extension.  You call without extension but the file must not have.
•  
• Install wireguard-gui on Ubuntu – installed and got errors – delay till later
•  
• What Is My IP – test to see if IP address of machine has changed to relevant IP address.

Theory

• Conceptual overview
• QuickStart

Other Links

• Connect to a VPN – covers the network interface you can click to from desktop network icon
• Install NetworkManager
• How to configure WireGuard VPN client with NetworkManager GUI  –
• Can't add WireGuard VPN connection to Ubuntu Network Manager

While watching this video I realized that while the configuration file must have the .conf extension you call refer to this file without the extension and I had been trying to test with my home server which had gotten jammed up and needs rebooting.