How to switch from “docker-compose” to “docker compose”

The CLI API for docker compose has changed recently. It used to be a single-word command with the two words separated by a hyphen. Since docker compose became available as a docker plugin, you could also run it by calling the docker command followed by the word compose. You might run into issues if you […]

How To Set Up A DNS For Wireguard

In this post I explain how to set up a DNS server that you can use inside your Wireguard VPN network. My main Wireguard node is an Ubuntu Server 22.04 machine and I choose to use bind9 as my DNS server. You can find a description of my Wireguard setup here. Installing and configuring bind9 […]

The Current Architecture Of The Engineering Blog

An Overview Of The Architecture Of My Engineering Blog

In this post I will introduce the architecture of the Engineering blog. As most of you will notice, the blog is powered by WordPress. It’s an on-premise solution that is currently served from two Raspberry Pi 4B computers. The system is exposed to the public internet through a tunnel to a lightweight VPS hosted in […]

Wireguard: A simple, powerful VPN for my Raspberry Pis

This post talks about Virtual Private Networks. It is a common feature of cloud networking. I currently use Wireguard. It serves to connect all my Raspberry Pi machines together and with my public entry point in the cloud. In addition, I have machines scattered across multiple locations. This way I can connect securely to those […]

The Bourne-Again Shell

I made a simple, cheap NVR with BASH and FFMPEG

Introduction I started studying IP cameras and surveillance as a survival skill a few years ago. My family has some nice homes that we want to protect. The houses are far apart from each other. I also wanted to see the different environments and climates so that I could get that feeling of being there. […]

Path Variable Engineering Blog Open Source Projects

Go-posix-time and onvif-cam-poll

Here is a short text about how I got started with using Go and ONVIF for my camera projects. I started working with the Go programming language about a year and a half ago. I was intrigued by how easy it was to create a simple script or small application and deploy it. The style […]