[Samba] Samba 3: is LDAP required?

[tvsjr]

 >Yes or no - is OpenLDAP required to be on the SAMBA 3.0 server in order for
 >Active Directory support to work?  Active Directory support == "security =
 >ads".

Are you trying to make Samba act as an Active Directory server? If so, then 
Samba won't do that, you're SOL.
If you're trying to make your Samba machine join an Active Directory, no, 
OpenLDAP is not required. The Active Directory must be running in Mixed or 
Native mode, not in Native 2003 (2k3 Server only) mode.

Terry