2.4.3 nTDSDSA Object
The nTDSDSA object is the Active Directory Server object (section 2.4.2)
from the Active Directory Schema, as specified in [MS-ADTS]
On a DC,
the nTDSDSA object represents the replication agent, which is
responsible for processing the DRS Protocol.
The nTDSDSA object has the RDN of "CN=NTDS
Settings" and is a child of the Server object of the DC.
of this nTDSDSA object is invariant for the lifetime of the DC. The
implementation MAY use this GUID value as an alternative identifier for the DC.<10>