Overview#
ModifyTimestamp is an OperationalAttribute AttributeType the time this entry was last modified.LDAP Attribute Definition#
The ModifyTimestamp AttributeTypes is defined as:- OID of 2.5.18.2
- NAME: ModifyTimestamp
- DESC: the time this entry was last modified.
- EQUALITY:
- ORDERING:
- SYNTAX: 1.3.6.1.4.1.1466.115.121.1.24 GeneralizedTime
- SINGLE-VALUE
- NO-USER-MODIFICATION
- USAGE DirectoryOperation
LDAP Microsoft Active Directory Attribute Definition#
whenChanged attribute is marked as not-replicated attribute in Microsoft Active Directory.Version-Specific Behavior: First Implementation on Active Directory Lightweight Directory Service (AD LDS) and Windows Server 2008 Operating System.
LDAPWiki finds Conflicting information
ModifyTimestamp is marked as Constructed Attribute (effectively an alias for whenChanged) [1] This will require the application to query all DCs in the domain for most recent value when comparing the attribute and security stamp
ModifyTimestamp is marked as Constructed Attribute (effectively an alias for whenChanged) [1] This will require the application to query all DCs in the domain for most recent value when comparing the attribute and security stamp
However [2], 2.140 Attribute modifyTimeStamp states: "This attribute specifies the date when this object was last changed. This value is replicated."" and [3], Modify-Time-Stamp attribute, states: "This value is not replicated. "
The ModifyTimestamp AttributeTypes is defined as:
- CN: Modify-Time-Stamp
- OID of 2.5.18.2
- NAME: ModifyTimestamp
- DESC:
- EQUALITY:
- ORDERING:
- SYNTAX: 2.5.5.11 (Like GeneralizedTime)
- LOWERBOUND:
- UPPERBOUND:
- OMSyntax: 24
- SchemaIDGUID: 9a7ad94a-ca53-11d1-bbd0-0080c76670c0
- mapiID:
- SINGLE-VALUE
- NO-USER-MODIFICATION
- USAGE: OperationalAttribute
- Extended Flags:
- X-SYSTEMFLAGS
- X-SCHEMAFLAGSEx
- X-SEARCH-FLAGS
- Used as MUST in:
- Used as MAY in:
More Information#
There might be more information for this subject on one of the following:- 2.5.18.2
- LDAP Object Identifier Descriptors
- Microsoft TIME
- NDS Obituaries
- OperationalAttribute
- WhenChanged
- [#1] - http://blog.joeware.net/2006/10/03/655/
- based on information obtained 2016-06-01-
- [#2] - 2.140 Attribute modifyTimeStamp - based on information obtained 2020-03-05
- [#3] - Modify-Time-Stamp attribute - based on information obtained 2020-03-05