Here's the documentation for a project I've been working on:
This is perhaps an unusual application of a BeagleBone. What it does is act as a third-party authentication server in an NFSv4 based network.
The protocol is called Kerberos, which originated at MIT in the 1980s.
I've been running this on my home system for a few months now, and the BeagleBone + Debian console distro is a perfect match for this application.
It's a bit unusual for a BeagleBone project, as there is no embedded device code, only a complex configuration required!
Regards,
Greg