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This attribute specifies the family or last name for a user.
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cn: Surname ldapDisplayName: sn attributeId: 2.5.4.4 attributeSyntax: 2.5.5.12 omSyntax: 64 isSingleValued: TRUE schemaIdGuid: bf967a41-0de6-11d0-a285-00aa003049e2 systemOnly: FALSE searchFlags: fANR | fATTINDEX rangeLower: 1 rangeUpper: 64 attributeSecurityGuid: e48d0154-bcf8-11d1-8702-00c04fb96050 mapiID: 14865 isMemberOfPartialAttributeSet: TRUE 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.