FlowViewer is a web-based netflow data analysis tool.
Creates web pages that show information about Ethernet switches.
Application Performance Monitoring System
Monitorix is a free, open source, lightweight system monitoring tool
Main repository for munin master / node / plugins
A distributed and high-performance monitoring system
Performance Co-Pilot
Monitors a distributed infrastructure and sends alerts
Python library and shell utilities to monitor filesystem events
CLI tool which provides ability to send messages to multiple platforms
free netflow analyzer