Monitoring
Useful *top utilities, for real-time monitoring
How to quickly setup a fully functional, yet fancy, Nagios
Monitoring Windows using Unix tools
Command line
MySQL Hints
Bash Hints
ZSH Hints
SSH Hints
How to quickly create fully functional shell scripts using VIM
Wipe/shred/nuke a living server
FreeBSD
Deinstall an already removed port on FreeBSD
Installing vger on FreeBSD, using inetd and nginx
Migration a PostgreSQL cluster using FreeBSD ports
Networking
OpenVPN setup & basic usage
How to use a VPN to bypass stupid proxies
My own ipv6 tips for servers
IPSec for FreeBSD cross-host jails gentle communication
Misc
My Firefox favorite extensions
Backup your mailbox with GMail (from a low memory machine)
Simple hack to make dokuwiki autodetect and handle mobile devices
Make the Android camera app shut the fuck up
Some notes on installing Android 4.0 (ICS) on the Nexus One
Lightweight groupware solution using nginx+php-fpm+mysql+baïkal+roundcube+agendav