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...
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...
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....
Securing your secrets: Deploy Passbolt
In today’s digital landscape, organizations are increasingly dependent on cloud-based tools to manage credentials and sensitive data. While...
Building a central Ansible Control Node
Managing multiple servers or virtual machines can quickly become overwhelming. An Ansible Control Node gives you a central...
Why I rely on Netcup for my VPS infrastructure
What Makes Netcup Special I’ve been running my VPS infrastructure with Netcup, based in Karlsruhe, for a long...
Checkmk RAW Edition Monitoring
Checkmk is a powerful IT monitoring solution originally developed by Mathias Kettner. Today, it is maintained by Checkmk...