Texas A&M University - Infrastructure Services

Unique Identifier (uid)

Definition: Unique identifier assigned to every entry in the directory.

Texas A&M uses this attribute as the relative distinguished name (RDN) for entries in the people branch. An RDN of this format was chosen because it presents a very large namespace, assists in separating directory entries from easily matchable, personal identifiers, and allows the flexibility of separating directory entry management from login and email attributes.

Many LDAP-enabled products expect the RDN to be the NetID. However, RDNs are expected to change infrequently. The NetID at Texas A&M is required to be modifiable, making it inappropriate for use as an RDN.
Attribute Name: 'uid' 'userid'
OID: 0.9.2342.19200300.100.1.1
URN: urn:oid:0.9.2342.19200300.100.1.1
Object Class: inetOrgPerson, tamuPerson
Required: yes (by tamuPerson)
Multiple Values: Single-valued
Format: Directory String {256}
Value is a 32-character hexadecimal string.
Controlled Vocabulary: not applicable
Source: Generated at time LDAP entry is created.
Indexing: Presence (pres): Improves searches for entries that contain the indexed attribute.
Equality (eq): Improves searches for entries that contain an attribute that is set to a specific value.
Search Syntax: EQUALITY caseIgnoreMatch SUBSTR caseIgnoreSubstringsMatch
Access: Account owner, authenticated users, and nonauthenticated (anonymous) users have read access.
Usage: directory search
Example(s): 79094b873aa31720a4bbcd59b45df5d2