Network Monitoring Tools

This section has links and information about network monitoring tools. I've used Nagios a lot in the past 4 or 5 years, which is open source and pretty mature. It is mainly for detecting and reporting problems however, so it's useful to add something like Munin for tracking and graphing system resources and performance.

Another tool I'd like to try out for this is OpenNMS, which is written in Java, and includes the graphing as well as detection and reporting, and also auto-detects devices and services on a network.

Hyperic is another open source tool in this category I'd like to learn more about.