Build your own secure chat system with Matrix
“This is your last chance.”After this, there’s no turning back. You take the green pill — you stay...
Monitoring Proxmox Snapshots – Why It Matters More Than You Think
In virtualized environments, snapshots are a powerful safety net. Whether you’re patching a critical system, updating a legacy...
Matrix Notifications for Checkmk – Modern, Secure, and Self-Hosted Alerting
Still sending monitoring alerts via email or relying on closed messaging platforms? In an age where digital sovereignty...
A lightweight task manager that’s yours
If you want a simple and powerful task manager that stays entirely under your control, Vikunja is a...
Fail2ban Made Easy with a Helper Script
What is fail2ban? fail2ban is a security tool for Linux servers that helps prevent brute-force attacks. It works...
Google Groups as a Spam Vector
Introduction If you’re operating a modern mail system and rely on technologies like SPF, DKIM, and DMARC, you...
Never Miss a Bounce Again – Track Postfix Failures
When you’re waiting for an important email that never arrives, it can be frustrating — especially when there’s...
Zero Trust PKI Made Simple with EasyRSA
Introduction Zero Trust is no longer just a buzzword – it is a security principle that fundamentally changes...
Modern and lightweight Wiki.js
When it comes to self-hosted wiki platforms, MediaWiki has been a solid and proven solution for many years....