---
oid: "2.5"
asn1-notation: "{joint-iso-itu-t(2) ds(5)}"
description: "Directory services"
last-modified: "2019-08-12"
tags: [oid-repository]
---

## OID: `2.5`

```asn1
{joint-iso-itu-t(2) ds(5)}
```

### Description

Directory services

### Supplementary information

See the Recommendation ITU-T X.500 | ISO/IEC 9594 series.

### Registrant

Name: Hoyt Kesterson & R. Exner
Address: ITU-T Q.20/7 [1989-92] & ISO/IEC JTC 1/1.21.29
Switzerland
Assignment date: 1989

### Child OIDs

- [OID `2.5.1`](https://oid-base.com/get-md/2.5.1): `module(1)`
- [OID `2.5.2`](https://oid-base.com/get-md/2.5.2): `serviceElement(2)`
- [OID `2.5.3`](https://oid-base.com/get-md/2.5.3): `applicationContext(3)`
- [OID `2.5.4`](https://oid-base.com/get-md/2.5.4): `attributeType(4)`
- [OID `2.5.5`](https://oid-base.com/get-md/2.5.5): `attributeSyntaxVendor(5)`
- [OID `2.5.6`](https://oid-base.com/get-md/2.5.6): `objectClass(6)`
- [OID `2.5.7`](https://oid-base.com/get-md/2.5.7): `attribute-set(7)`
- [OID `2.5.8`](https://oid-base.com/get-md/2.5.8): `algorithm(8)`
- [OID `2.5.9`](https://oid-base.com/get-md/2.5.9): `abstractSyntax(9)`
- [OID `2.5.10`](https://oid-base.com/get-md/2.5.10): `object(10)`
- [OID `2.5.11`](https://oid-base.com/get-md/2.5.11): `port(11)`
- [OID `2.5.12`](https://oid-base.com/get-md/2.5.12): `dsaOperationalAttribute(12)`
- [OID `2.5.13`](https://oid-base.com/get-md/2.5.13): `matchingRule(13)`
- [OID `2.5.14`](https://oid-base.com/get-md/2.5.14): `knowledgeMatchingRule(14)`
- [OID `2.5.15`](https://oid-base.com/get-md/2.5.15): `nameForm(15)`
- [OID `2.5.16`](https://oid-base.com/get-md/2.5.16): `group(16)`
- [OID `2.5.17`](https://oid-base.com/get-md/2.5.17): `subentry(17)`
- [OID `2.5.18`](https://oid-base.com/get-md/2.5.18): `operationalAttributeType(18)`
- [OID `2.5.19`](https://oid-base.com/get-md/2.5.19): `operationalBinding(19)`
- [OID `2.5.20`](https://oid-base.com/get-md/2.5.20): `schemaObjectClass(20)`
- [OID `2.5.21`](https://oid-base.com/get-md/2.5.21): `schemaOperationalAttribute(21)`
- [OID `2.5.23`](https://oid-base.com/get-md/2.5.23): `administrativeRoles(23)`
- [OID `2.5.24`](https://oid-base.com/get-md/2.5.24): `accessControlAttribute(24)`
- [OID `2.5.25`](https://oid-base.com/get-md/2.5.25): `rosObject(25)`
- [OID `2.5.26`](https://oid-base.com/get-md/2.5.26): `contract(26)`
- [OID `2.5.27`](https://oid-base.com/get-md/2.5.27): `package(27)`
- [OID `2.5.28`](https://oid-base.com/get-md/2.5.28): `accessControlSchemes(28)`
- [OID `2.5.29`](https://oid-base.com/get-md/2.5.29): `certificateExtension(29)`
- [OID `2.5.30`](https://oid-base.com/get-md/2.5.30): `managementObject(30)`
- [OID `2.5.31`](https://oid-base.com/get-md/2.5.31): `attributeValueContext(31)`
- [OID `2.5.32`](https://oid-base.com/get-md/2.5.32): `securityExchange(32)`
- [OID `2.5.33`](https://oid-base.com/get-md/2.5.33): `idmProtocol(33)`
- [OID `2.5.34`](https://oid-base.com/get-md/2.5.34): `problem(34)`
- [OID `2.5.35`](https://oid-base.com/get-md/2.5.35): `notification(35)`
- [OID `2.5.36`](https://oid-base.com/get-md/2.5.36): `matchingRestriction(36)`
- [OID `2.5.37`](https://oid-base.com/get-md/2.5.37): `controlAttributeType(37)`
- [OID `2.5.38`](https://oid-base.com/get-md/2.5.38): `keyPurposes(38)`
- [OID `2.5.39`](https://oid-base.com/get-md/2.5.39): `passwordQuality(39)`
- [OID `2.5.40`](https://oid-base.com/get-md/2.5.40): `attributeSyntax(40)`
- [OID `2.5.41`](https://oid-base.com/get-md/2.5.41): `avRestriction(41)`
- [OID `2.5.42`](https://oid-base.com/get-md/2.5.42): `cmsContentType(42)`
- [OID `2.5.43`](https://oid-base.com/get-md/2.5.43): `wrprot(43)`
- [OID `2.5.44`](https://oid-base.com/get-md/2.5.44): `algo(44)`

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[Terms of use](https://oid-base.com/disclaimer.htm.md)