!!! Overview
[{$pagename}] is an [Attribute-Names] which represents a [Universally Unique Identifier] as used in [Microsoft Active Directory].

!! [LDAP] [Microsoft Active Directory Attribute] Definition
The [{$pagename}] [AttributeTypes] is defined as:
* [CN|Cn]: Object-Guid
* [OID] of [1.2.840.113556.1.4.2] 
* [NAME|Attribute-Name]: [{$pagename}]
* [DESC]: The unique identifier for an object.
* [EQUALITY]: []
* [ORDERING]: []
* [SYNTAX]: [2.5.5.10] [Replica Link]
* [LOWERBOUND]: 16
* [UPPERBOUND]: 16
* [OMSyntax]: 4
* [SchemaIDGUID]: bf9679e7-0de6-11d0-a285-00aa003049e2
* [mapiID]: 
* [SINGLE-VALUE] 
* [NO-USER-MODIFICATION] 
* [USAGE]: [OperationalAttribute] 
* [Extended Flags]: 
** [X-ORIGIN]: [Microsoft]
* [X-SYSTEMFLAGS] 
** [FLAG_SCHEMA_BASE_OBJECT]
** [FLAG_ATTR_REQ_PARTIAL_SET_MEMBER]
** [FLAG_ATTR_NOT_REPLICATED]
* [X-SCHEMAFLAGSEx]
* [X-SEARCH-FLAGS] 
** [fPRESERVEONDELETE]
** [fATTINDEX]
* Used as [MUST] in:
** [Top]
* Used as [MAY] in:
**

!! [{$pagename}] [LDAP SearchFilters]
In order to form an [LDAP SearchFilter] that searches based on an [{$pagename}], the [GUID] value must be entered in a special syntax in the filter - where each byte in the [hexadecimal] representation of the [GUID] must be escaped with a [Backslash ()|Backslash] symbol. To provide an [example], in order to search for an object with hexadecimal GUID "90395F191AB51B4A9E9686C66CB18D11", the corresponding filter should be set as:
{{{
(objectGUID=\90\39\5F\19\1A\B5\1B\4A\9E\96\86\C6\6C\B1\8D\11)
}}}



!! [Endian Ordering] Issue
If we look at a (Object GUID) it looks like:                     
{{{ 878ce8b7-2713-41a9-a765-5e3905ab5ef2 }}} 

The order is due to the [Endian Ordering] used by [Microsoft Active Directory]

!! [Universally Unique Identifier]
[{$pagename}] is generally a [Universally Unique Identifier] other than the format differs from the UUID standard only in the byte order of the first 3 fields.

!! More Information
There might be more information for this subject on one of the following:
[{ReferringPagesPlugin before='*' after='\n' }]
----
* [#1] - [summarizing-pki-certificate-validation|https://en.wikipedia.org/wiki/Globally_unique_identifier|target='_blank'] - based on information obtained 2013-04-10
* [#2] - [Object-Guid attribute|https://docs.microsoft.com/en-us/windows/win32/adschema/a-objectguid#windows-server-2012|target='_blank'] - based on information obtained 2019-11-12 
* [#3] - [Using objectGUID to Bind to an Object|https://docs.microsoft.com/en-us/windows/win32/ad/using-objectguid-to-bind-to-an-object|target='_blank'] - based on information obtained 2019-11-12 
* [#4] - [2.263 Attribute objectGUID|https://docs.microsoft.com/en-us/openspecs/windows_protocols/ms-adls/f5f15ec2-427e-4ebe-bb64-2493cf1d032f|target='_blank'] - based on information obtained 2019-11-12