Sericulus
Sericulus helps you manage your computing estate.
... are some use cases:
Across some or all of your estate you might need to...
* See the config file on a misbehaving application.
* Check that forwards and backwards DNS resolution is as expected.
* Find Free (no one logged in) machines to test something on.
* See how machines are being left on at night, after hours.
* See how many people leave themselves logged in.
* See how many people are logging on with local accounts.
* Audit BIOS Serials, IP or MAC addresses.