• June 10, 2026

  Using sudoedit in Ansible

  Imagine you are at work. After years of arguing you finally get people to use systemd to start services at boot instead of simply hoping the servers never go …
• June 6, 2026

  What to request when you're requesting (reverse DNS)

  This is a story about requesting reverse DNS. Put yourself in my shoes; imagine your ISP gave you a static IPv4 address (meaning a /32 “range”) and a …
• October 23, 2024

  100 Days of SERVFAIL

  Hey folks, today marks 100 days of Project Servfail, our self-hosted, globally distrubuted authoritative DNS network that started because a few Fedi friends and …
• August 18, 2024

  Embracing the e.V.

  This post is not about electric vehicles. Big providers are going downhill. At first they started to sell your data (duh), then there was cramming blockchain …
• March 24, 2024

  Finding NetBSD Kernel Bugs through LockDoc

  This post will be my attempt to package up my master’s thesis in a format that can be read comfortably. I’ve spent the last 15 months mostly on this …
• July 23, 2023

  Homelab v5: Going Down The Network Stack

  Post by @ruhrscholz@kif.rocks View on Mastodon The Old Setup To properly appreciate the upcoming network shenanigans I’ll have to give you a bit of …
• May 1, 2023

  Fighting NetBSD's serial console management

  Listen to me rant about a bug I faced over the last weeks. Context I’m (still) working on a project where I have to emulate NetBSD (9.3) in Bochs. You may …
• February 2, 2023

  Clearing up Plex networking internals

  Plex annoys me. Yet I have to admit it is by far the easiest thing to use for the end user. If it weren’t for that I would’ve switched to Jellyfin …
• February 1, 2023

  IPv6, dynamic prefixes, and MikroTik: The proper way

  This is an update to IPv6, FRITZ!Box, and MikroTik. I finally figured everything1 out. TL;DR: SLAAC. Long version: A quick flashback to the last post where I was …
• January 3, 2023

  Homelab v4.3: Status Update

  New year, new post, this is a quick status update of what has been going in the lab in the past few months. But first of all… Mastodon Since Twitter went …
• November 16, 2022

  The Quest to run NetBSD on Bochs

  Running NetBSD on Bochs. Sounds trivial. Point Bochs to the right .iso and start it. Right? Wrong. I have to run NetBSD on a forked Bochs version as a …
• October 31, 2022

  Homelab v4.2: Becoming My Own Cloudflare

  Yes, I know, the title is clickbait, but that’s okay. I have always hosted some things trough my own internet connection, like Nextcloud, Plex, you get the …
• October 8, 2022

  Organizing Photos

  Warning: Another rambling stream of thoughts. The Cruft I currently have around 500GB of (digital) family photos sorted into folders labeled by date and …
• September 8, 2022

  Homelab v4.1: Old School Unix Administration

  This will be a rant and/or raw stream of thoughts. The story so far I’m returning to old school Unix administration (for now). Over the years I’ve …
• September 2, 2022

  IPv6, FRITZ!Box, and MikroTik

  Today I took the time to finally configure IPv6 in my lab network. Sounds easy, right? Wrong. Very wrong. See, my lab network uses a MikroTik RB4011 behind a …
• June 2, 2022

  Gaming in a Proxmox VM - Nvidia Edition

  I recently got a spare Nvidia GPU, a wonderful GTX 1650. Not very powerful, but it doesn’t need any additional power connectors - perfect for throwing it …
• May 5, 2022

  Using Mullvad VPN as a second WAN on MikroTik's RouterOS

  Today I spent a few hours getting a VLAN to work that routes via Mullvad to the Internet. My use case are a special guest WiFi for clients I don’t trust as …
• April 9, 2022

  Automatically keeping Plex (or anything) up-to-date on NixOS

  This week I’m rebuilding my homeserver on a NixOS base. After I migrated Plex over, I got annoyed by the constant warnings that the used Plex version is …
• April 6, 2022

  How to delete an OVH account (without providing your ID)

  Today, while cleaning out my password manager, I noticed that I still had an OVH account from years ago. Trying to keep my accounts to a minimum (still far over …
• April 3, 2022

  Gandi LiveDNS v5 as DynDNS provider

  This is just a simple curl command to put in your crontab that updates some domain managed by Gandi LiveDNS v5. The reason behind this is that while DDclient has …
• March 15, 2022

  Hyper-V on Linux (yes, this way around)

  Almost two years ago while browsing Linux-related news I stumbled upon a Phoronix article: “Microsoft Wants To Create A Complete Virtualization Stack With …
• February 26, 2022

  Recovering from a broken MikroTik configuration

  Imagine you’re laying in bed, watching Netflix, scrolling through Twitter at 3 am, when you see someone tweet about a new MikroTik update, 7.1.3 just came …
• February 8, 2022

  (Real) Alternative DNS Roots

  This is meant to be a follow-up to my post about Alternative DNS Roots. In that article we set up a DNS resolver that resolves a new, custom TLD because we …
• January 11, 2022

  Homelab v4: The T440

  Another part in the ever-evolving Homelab series. Yay! And that after postponing this article for a month. Yay! Let’s see what’s new. The attentive reader will …
• September 19, 2021

  Homelab: The Prequel

  In the beginning, there was… well, nothing. After playing around with desktop computers, servers, and many, many VMs as long as I can think, I never really …
• August 23, 2021

  (Fake) Alternative DNS Roots

  Tip This is an outdated post. Since it was published, I’ve written a more complete article about a real alternative DNS root. I’ll leave this up not …
• February 22, 2020

  Installing and configuring WireGuard on an EdgeRouter X

  Why? Today I finally came around to replace my OPNsense VM with an old EdgeRouter X. Don’t misunderstand me, OPNsense is absolutely great, but I reboot or …