SQL operating system instrumentation and monitoring framework
Full-featured enterprise network management tool
Intelligently block brute-force attacks by aggregating system logs
Anti-Spam SMTP Proxy Server implements multiple spam filters
3D Network Traffic Visualisation
A simple, portable port scanner
Snare Enterprise: bit.ly/Snare-Trial
Track your ARP/MAC table changes and so much more
Open Source SIEM
MitM pentesting opensource toolkit
single file multi-purpose multi-platform shell written in php
A MAC address based user authentication system for campus-wide network
A simple packet sniffer for local networks
Web based management tool for unixes
Network Intrusion Detection and Full Packet Capture System
Simple Multi Protocol Packet Sniffer - SMPPS
IDS + IPS for RouterOS (mikrotik)