Determine which RODC a computer or user has authenticated against

 

Regarding AD attribute “msDS-AuthenticatedAtDC”

This attribute is maintained by the DC on user and computer objects. The attribute contains a list of computer objects, corresponding to the RODCs at which the user or computer has authenticated. This attribute is a forward link attribute whose corresponding back link is the msDS-AuthenticatedToAccountlist attribute (see section 6.1.1.3.2). When a writable DC authenticates a user or computer to an RODC, that writable DC adds the DN of the RODC’s computerobject to the list in the msDS-AuthenticatedAtDC attribute of the user or computer that was authenticated.

This attribute was first maintained by DCs running Windows Server® 2008 operating system.

Sniped from: http://msdn.microsoft.com/en-us/library/cc223748(v=prot.10).aspx

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