Persistently modifying an operating system image

Images provided by manufacturers don’t always hit the spot: they just need a bit of pizzazz!

April 26, 2022 · 9 min · 1891 words · Pablo Collado Soto

Controlling access through a WireGuard VPN

WireGuard exposes a network model we can toy with. This post covers how to enforce access control based on a WireGuard VPN alone!

March 13, 2022 · 15 min · 3008 words · Pablo Collado Soto

Setting up a WireGuard VPN

Just drop OpenVPN: the cool kids are all using WireGuard now…

March 12, 2022 · 15 min · 3097 words · Pablo Collado Soto

An introduction to subnetting in IP networks

Even though we hope IPv4 goes away at some points, you can’t ride the net without knowing what subnetting’s all about…

December 16, 2021 · 24 min · 5086 words · Pablo Collado Soto

Cross Compiling stuff with Docker

Cross-compiling can be quite a pain if not on Linux, but Docker can lend a hand! Let’s see how…

November 14, 2021 · 16 min · 3407 words · Pablo Collado Soto