> I have a need to allow Windows 2003 to authenticate users using Active
> Directory, and allow them to use a Samba file server.  I would like to
> use a single user store instead of a Linux store and a Windows store. 
> This brings up three scenarios:
> 1.  Maintain both, but create a sync program to keep them in sync :(
> 2.  Use AD, but have Linux use LDAP via AD for authentication.  Is this
> possible?
> 3.  Use Samba as AD.  This is my preferred solution, but is it
> possible?  samba.org web site seemed to indicate that it is, but was not
> explicit.  Anyone have any experience/comments on this?

Check out Samba v3.0 that was just released.  It is supposed to be able to 
integrate into an AD setup:

http://us4.samba.org/samba/whatsnew/samba-3.0.0.html