[tlug] Process monitoring with Nagios

[Sven Simon <sven@example.com>]

Has anybody been trying out Nagios (www.nagios.org) ? I just stumbled 
over their
website and I think this is pretty much what I'm looking for. We have 
rolled out quite
a bunch of Linux boxes and I need to ensure that some dedicated 
processes run on
specific machines at specific times. Any opinions on how Nagios handles 
such situations.
Any other tools I should look at? How much of an impact do the agents 
have on the
systems?

Sven