High performance ping tool
SQL operating system instrumentation and monitoring framework
The Network UPS Tools repository
WinDivert: Windows Packet Divert
Open Source Monitoring System for performance and availability.
Nagios network monitoring software is enterprise server monitoring
Manage and interpret IPMI systems with common a software tool
Intelligently block brute-force attacks by aggregating system logs
Firewall log analyzer
A Swiss army knife for your daily Linux network plumbing
repair corrupted pcap and pcapng files
A simple, portable port scanner
Cisco switch port mapper
A tool that helps users see all their PC WiFi passwords at a glimpse.
Snare Enterprise: bit.ly/Snare-Trial
Pinger alert, STATICTICAL TABLES, send EMAILs or SMS by SMS GATEWAY
Apache module for SNMP monitoring
Open Source SIEM