Configs
Firefox plugins and about:configs
Thunderbird plugins and user.prefs
Dotfiles for Screen
Redhat+Fedora repo config
DNS, especially Bind 9
Firefox and Chrome About Pages
Source Snippets
Generic Start Script for Linux' /etc/init.d or BSDs /etc/rc.d and how to manage them.
PostgreSQL scripts
MySQL snippets in sh, SQL and my.cnf syntax
Handling the Postfix mailqueue
Commands
Starting Sendmail
Walking SNMP
Make a X11 config file
Valid for all GNU-Linux distros, but not necessarily for BSD
FreeBSD specific tips
SSL+TLS: openssl commands for generating keys, certificates and stuff
Some admin commands specific to Solaris
Persistent static routes
Lists
ProFTPD logfile explained
SampleEmails contains test pattern for virius and spam checker as well as a large sample mailbody
Reserved IP-Addresses
RFCs.
Cheat Sheets
LaTeX cheat sheet (in pdf)