Active Directory Domain Control
As of the release of MS Windows 2000 and Active Directory, this information is now stored
in a directory that can be replicated and for which partial or full administrative control
can be delegated. Samba-3 is not able to be a domain controller within an Active Directory
tree, and it cannot be an Active Directory server. This means that Samba-3 also cannot
act as a BDC to an Active Directory domain controller.