[cifs-protocol] msDS-HasInstantiatedNCs

Tom Jebo tomjebo at microsoft.com
Sun Jun 24 09:40:25 MDT 2012

Hi Andrew, 

Thank you for your question regarding the msDS-HasInstantiatedNCs DN fields requirement.  One of the Open Specifications team will respond shortly to begin working with you. 

Best regards,
Tom Jebo
Escalation Engineer 
Microsoft Open Specifications

-----Original Message-----
From: Andrew Bartlett [mailto:abartlet at samba.org] 
Sent: Sunday, June 24, 2012 3:48 AM
To: Interoperability Documentation Help
Cc: cifs-protocol at samba.org
Subject: msDS-HasInstantiatedNCs

In MS-ADTS nTDSDSA Object it says:

msDS-HasInstantiatedNCs: Contains an Object(DN-Binary) value for each NC replica that is hosted by this DC. The DN field is the DN of the root object of the NC. The Binary field contains the value of the instanceType attribute on the root object of the NC. This is a binary encoding of attribute instanceType with little-endian byte ordering. 

Requirement: The DN fields of all the values of msDS-HasInstantiatedNCs must be equal to the set of DNs contained in the values of msDS-hasMasterNCs and hasPartialReplicaNCs.


Who is the Requirement enforced by?  Is it a requirement that the client (the newly joining DC) set and maintain this, or that the existing DC being joined must maintain this?


Andrew Bartlett

Andrew Bartlett                                http://samba.org/~abartlet/
Authentication Developer, Samba Team           http://samba.org

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