How to Configure Ubuntu as Router | Do It Yourself
Ubuntu as a firewall/gateway router | Lazy Geek -:)
How to set up WireGuard VPN server on Ubuntu 20.04 - nixCraft
GitHub - 112358fn/Ubuntu20.04-Router: Ubuntu 20.04 version of "The Ars guide to building a Linux router from scratch": https://arstechnica.com/gadgets/2016/04/the-ars-guide-to-building-a-linux- router-from-scratch/
router on a stick | Lazy Geek -:)
Setting a Static IP Address in Ubuntu 18.04 - Pi My Life Up
How To Configure Linux as a Static Router – devconnected