The Active Monitoring System
Monitorix is a free, open source, lightweight system monitoring tool
A network security analysis and monitoring toolkit Linux distribution.
Full-featured enterprise network management tool
Storage, SAN, LAN Performance Monitoring: IBM,NetApp,Hitachi,HPE,EMC
Simple Monitoring Tool
AIX, Linux, VMware, Nutanix, Oracle, RHV, Cloud performance monitoring
lm-sensors repository
FlowViewer is a web-based netflow data analysis tool.
Main repository for munin master / node / plugins
This is now also available here github.com/sharkcz/collectl.git
Tools for Linux/Unix sysadmins
Monitorix is a system monitoring tool
OPTOSS Next Gen Network Management System (NG-NetMS)
Netflow visualisation and investigation tool
Log File Monitoring - Check Log Files, Analyze, Alert on any UNIX Log