Login controls

[David A. Bandel]

Folks,

While the discussion of chickens, raccoons, foxes, etc., has been
amusing, I have a slightly more serious question:

Anyone know of a good login control program for linux?  Appears there
are some rudimentary controls under PAM, but I was hoping for more
fine-grained control for my children.  Already running dansguardian,
but that doesn't keep them from playing 8-10 hours a day on the
Internet.

TIA,

David A. Bandel
-- 
Focus on the dream, not the competition.
 - Nemesis Air Racing Team motto