Big Brother was watching...

I remember in days of yore when Big Brother monitored our servers. This wasn't Orwell's prophetic leader but a system monitoring tool that could be viewed in a browser. That was in the late 1990s; fast-forward to today and BB, as it was known, is no more. But it inspired XyMon which may still be a viable alternative to the more capable Nagios.

A potted history of BB:

Open Source: Xymon

See the Xymon home page and download site.

XyMon was formerly called Hobbit and grew from something called BBGen Toolkit.

Or just use Nagios ?

Nagios Core is the open-source component of Nagios.

* days of yore