attribute type ITU-T (X.500)

2.5.4.4

sn

also known as surname, Surname

Surname. It subtypes the name attribute, so it inherits that syntax and matching, and like most name attributes it is multi-valued, because people genuinely have more than one. On a person entry, RFC 4519 makes sn and cn the two you must supply.

OID
2.5.4.4
Name
sn
Aliases
surname, Surname
Kind
attribute type
Arcwho allocated the number
ITU-T (X.500) 2.5
Standardwho defined it
IETF · RFC 4519, RFC 2256

Schema

Superior
name
Syntax
String(Unicode)
Single-valued
yes

Definition

attributetype ( 2.5.4.4 NAME ( 'sn' 'surname' ) DESC 'RFC2256: last (family) name(s) for which the entity is known by' SUP name )

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

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