Access control lists

[Kliewer, Vern]

When I authorize another node/user to access data from my node, where is the
access control information stored? I have Win9x, WinNT, Win2k, Novell, AIX,
HP/UX and Linux clients. I am primarily interested in where this is stored
on the UNIX clients, but am curious about the Windows/Novell clients as
well.