Firewall log analyzer
free netflow analyzer
Snare Enterprise: bit.ly/Snare-Trial
OPTOSS Next Gen Network Management System (NG-NetMS)
Log Management Solution
Lightweight Event Management System (for Monitoring-Events and more)
PHP 404 pages to trap malicious web requests and report abusers
two factor authentication management system
Real time monitoring : RPi-Monitor always keep an eye on your computer
Passive Proxy Daemon sniffs packets and creates squid proxy logs
Log and track user/computer info in MS Windows environments