Nagios (formerly known as Netsaint) has just gone beta with it's 3.0 release. A daemon for Linux systems, Nagios is a full featured network monitoring and notification toolset which can work wonders for making uptime more effortless. Designed so that you're aware of faults before your users are, installing and configuring Nagios in your office environment can easily make you look like a wizard to the powers that be.
Tags: linux, network monitoring, NetworkMonitoring, networktools, opensource