<xs:element name="RIDMaster" nillable="true" type="xs:string" />
The RIDMaster element is populated from the server!dnsHostName attribute on the parent of the RID Master's nTDSDSA object. The RID Master's nTDSDSA object is the object referenced by the rIDManager!fSMORoleOwner attribute on the rIDManager object referenced by the domain NC root's domainDNS!rIDManagerReference attribute. See [MS-ADTS] section 220.127.116.11.18.104.22.168.1 for information on the nTDSDSA object. See [MS-ADTS] sections 22.214.171.124.11 and 6.1 for information on FSMO roles and the fSMORoleOwner attribute. If the domainDNs!rIDManagerReference, rIDManager!fSMORoleOwner, or server!dnsHostName attribute is not present or cannot be read due to the client lacking access rights to read the attribute, the server returns a null ActiveDirectoryDomain/RIDMaster element.