[Samba] How do I use samba 3 to centralize unix logins to Active Directory Server

[Chris Jasper]

I want to look into ways of using samba (3.0) to cetralize unix/linux
logins to the active directory server. Does anyone have any ideas on
this? Is there a way just using samba? Do I also need NIS+? 

Any ideas and thoughts would be helpful.

thanks,
cj
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Chris Jasper
Perlegen Sciences
650-625-4500