Jul 2025 / DevOps Traefik: Logrotate Large (Access) Log Files This tutorial describes how to prevent big log files from consuming a lot of disk space by using Traefik's configuration and logrotate.
German Jul 2025 / DevOps netcup Server Umzug: Festplatte via Snapshot migrieren Wir erklären den Umzug eines root / VPS Servers innerhalb von netcup auch über verschiedene Generationen mithilfe von Snapshot Import / Export.
Mar 2022 / Linux Ubuntu Boot Loop Problem: Fix Full Disk with 0 Bytes Space Left If the Linux system boots in an infinite loop, the root filesystem partition is maybe full with 0 bytes left. I will show tips to free up space.
Mar 2022 / Tutorial Mail Security: MTA-STS + Mailcow MTA-STS is a security mechanism to prevent attackers from rerouting, reading and modifying your emails. Read how to use MTA-STS with mailcow.
Nov 2020 / DevOps CSF / LFD Firewall: csf.pignore not working or ignoring processes Sometimes, processes added to the csf.pignore file aren't ignored and alert mails still arrive. This article introduces several solutions and fixes.
Oct 2020 / Raspberry Pi Raspberry Pi – Basic Setup on Raspbian (Raspberry Pi OS) This quick guide describes the important steps to create a fully working Raspbian (Raspberry Pi OS) system (langauge setup, static IP, expand disk etc.).
Sep 2020 / Raspberry Pi Raspberry Pi 3 as Desktop Replacement – 21:9 Ultrawide, exFAT, VS Code, ... Raspberry Pi 3 as desktop replacement: 21:9 ultrawide resolution support, exFAT support, use latest software: Visual Studio Code, node.js, neovim
Apr 2020 / Off-Topic Coronavirus Tip and How To: Remote Party Gaming with your Friends How to use video conferencing tools like Jitsi to play the Jackbox Party Pack games remotely with your friends in times of the coronavirus COVID-19.
