How to set up WireGuard VPN server on Ubuntu 20.04

WireGuard is a relatively new entrant in the VPN software scene, with a bold promise to dethrone OpenVPN from the top in terms of speed, ease of use, and auditability. Whether or not WireGuard will fullfill its promise will remain to be seen, but so far, it has demonstrated a strong track record of success in growing its popularity. This tutorial how to set up Wireguard VPN server on Ubuntu environment.