sysadmin

How to fix 'Problem parsing XML' / '500 server error' in the Zimbra frontend

How to fix the 'JWS has invalid anti-replay nonce' Letsencrypt Error in Dehydrated

Ein Plug'n'Play-Packetsniffer mit OpenWRT

Sysadmin Tinkering: selbstgebautes IoT-Serverraum-Thermometer mit Icinga2-Integration

Find the Gitlab user ID by username, automagically

Writing Documentation for Sysadmins using Markdown and Gitlab CI