The Network UPS Tools repository
Free open source tool for real-time PC hardware sensor monitoring
Performance Co-Pilot
SQL operating system instrumentation and monitoring framework
Nagios Open Source network monitoring software - The Standard In ITM
Snare Enterprise: bit.ly/Snare-Trial
User Computer and IP Address Tracking
A MAC address based user authentication system for campus-wide network
netflow collecting and processing tools
Library for reading nfdump files