attribute type Microsoft

1.2.840.113556.1.4.221

sAMAccountName

also known as SAM-Account-Name

The pre-Windows-2000 logon name, and still the account name most things authenticate with. Unique within the domain, capped at 20 characters, and the value people mean when they say username. Machine accounts carry one too, ending in a dollar sign.

OID
1.2.840.113556.1.4.221
Name
sAMAccountName
Aliases
SAM-Account-Name
Kind
attribute type
Arcwho allocated the number
Microsoft 1.2.840.113556

Schema

Syntax
String(Unicode)
Single-valued
yes

Definition

attributetype ( 1.2.840.113556.1.4.221 NAME 'sAMAccountName' SYNTAX '1.3.6.1.4.1.1466.115.121.1.15' SINGLE-VALUE )

Appears in: OpenLDAP msuser.schema, Active Directory schema. Primary source. Spotted an error? Tell me.

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