2.189 Attribute dnsRoot

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The uppermost fully qualified domain name (FQDN) (1) ([MS-ADTS] section 1.1) assigned to a domain naming context. This is set on a crossRef object and is used, among other things, for referral generation. A search through an entire domain tree is initiated at the Dns-Root object. This attribute can be multivalued, in which case multiple referrals are generated.

 cn: Dns-Root
 ldapDisplayName: dnsRoot
 attributeId: 1.2.840.113556.1.4.28
 attributeSyntax: 2.5.5.12
 omSyntax: 64
 isSingleValued: FALSE
 schemaIdGuid: bf967959-0de6-11d0-a285-00aa003049e2
 systemOnly: FALSE
 searchFlags: fATTINDEX
 rangeLower: 1
 rangeUpper: 255
 systemFlags: FLAG_SCHEMA_BASE_OBJECT
 schemaFlagsEx: FLAG_ATTR_IS_CRITICAL

Version-Specific Behavior: First implemented on Windows 2000 Server operating system.

The schemaFlagsEx attribute was added to this attribute definition in Windows Server 2008 operating system.