linux user database

[Mike]

Hello. 
Is there a way to configure linux not to use her own user database ?
I mean something like Nt PDC BDC style, one computer that you logon to
and services from other computers.

Well, you will have to enter your user and password, incase you want to
use your e-mail or things like that....


Thanks you all

Mike
Mofet SysAdmin