3.1.1.2 Domain Database Information
Domain database information MUST consist of the following conceptual fields:
Domain DNS Name: A Unicode string that contains the DNS name of the domain database.
Domain NetBIOS Name: A Unicode string that contains the NetBIOS name of the domain database.
Domain SID: The SID of the domain database.
When the domain database is an Active Directory domain database, this information MUST be populated from DNS Domain Information, as specified in [MS-LSAD] section 3.1.1.1.
Otherwise, this information MUST be populated from the Account Domain Information, as specified in [MS-LSAD] section 3.1.1.1. In this case, Domain DNS Name MUST be set to empty.