System & Network Admin

[Nicholas Murray]’s Composite Test Pattern Generator is a beautifully-made, palm-sized tool that uses an ESP32-based development board to output different test patterns in PAL/NTSC. If one is…

Why traditional logging fails and how wide events can fix your observability

So anyway, I built this custom bash prompt and thought of sharing it:https://github.com/nix-tricks/nix-prompt

People are always asking me about the AIOC and where to get them... So I ordered up a set and tested them out. Let's take a look!👉 Make them yourself at Ne...

Learn live coding techniques to make your own music on Strudel.For this tutorial you will need a laptop and the Strudel workshop website.What You Will LearnT...

Learn how to install and use LocalSend for easy, secure file sharing between Linux, Windows, and other devices on your local network.

L2TP (which stands for Layer 2 Tunneling Protocol) is a tunneling protocol designed to support virtual private networks (VPN connections) over the Internet.

In this article, you will learn how to quickly and automatically set up your own IPsec/L2TP VPN server in CentOS/RHEL, Ubuntu, and Debian Linux distributions.

Learn how to schedule tasks on Linux using systemd timers. Explore monotonic, realtime, and transient timers to automate processes.

A guide on installing the Nix packagemanger on Alpine and Debian

Discover the significance of Postgres WAL (Write-Ahead Logging) in maintaining data integrity. Explore their role in robust data backups and crucial WAL configuration concepts.

Master PostgreSQL's Write-Ahead Logging (WAL) replication for robust data synchronization. Setting up and managing Postgres WAL replication.

Unleash the superpower of VS Code with multi-cursor editing. Learn how to do that in this tutotial.

Track system performance, kill tasks, and more with these beautiful resource monitors.

I’ve started using Alpine Linux as a fun experiment. I use Nix heavily, and I don’t feel like it’s very well documented for Alpine Linux. My experience is that it works extremely well and is a nice way to use normal, glibc packages.

In Linux, learning how to use cd, pushd, popd, and zoxide is essential, and these commands remain widely used by both beginners and system administrators.

In this follow-up to our "What Is a Terralith?" article, we shift the focus from describing the problem to providing a detailed migration plan, practical …

Sometimes it makes sense to go with plain old batteries and off-the-shelf PVC pipe. That’s the thinking behind [Bertrand Selva]’s clever LoRaTube project. LoRa is a fantastic solution f…

Explainable AI agents can now troubleshoot Kubernetes using governed tools, observability, and human approval, making automation viable in production environments.

[Michael Lynch] recently decided to delve into the world of off-grid, decentralized communications with MeshCore, because being able to communicate wirelessly with others in a way that does not dep…

In this section you'll find basic information about Lynx and how to install it and use it properly. If you're first time user then you should read this section first.

In this blog post, I’ll be going over deploying Wazuh, a Security Information and Event Management (SIEM) and Extended Detection and Response (XDR) tool, along with Nessus, a vulnerability scanner. This builds upon my previous work of setting up a pfSense firewall, Linux server, Docker environment.

User manual, installation and configuration guides. Learn how to get the most out of the Wazuh platform.

As applications grow, the question quickly shifts from what OTel can do to how we can deploy it effectively at scale. In this post, we’ll explore some deployment patterns for the OTel Collector!

How Prometheus Monitoring work? This deep dive explores monitoring, alerting, TSDB and Gorilla XOR encoding!