---
title: entryDN
description: An entry's distinguished name is not an attribute of the entry.
component: pingds
version: 8.1
page_id: pingds:schemaref:at-entryDN
canonical_url: https://docs.pingidentity.com/pingds/8.1/schemaref/at-entryDN.html
---

# entryDN

An entry's distinguished name is not an attribute of the entry.

This operational attribute makes it possible to perform attribute value assertions against the DN of the entry, enabling operations such as LDAP compare and LDAP search.

|                             |                                                                |
| --------------------------- | -------------------------------------------------------------- |
| *OID*                       | 1.3.6.1.1.20                                                   |
| *Names*                     | entryDN                                                        |
| *Description*               | DN of the entry                                                |
| *Syntax*                    | [DN](s-DN.html)                                                |
| *Equality matching rule*    | [distinguishedNameMatch](mr-distinguishedNameMatch.html)       |
| *Substring matching rule*   | [caseIgnoreSubstringsMatch](mr-caseIgnoreSubstringsMatch.html) |
| *Single value*              | true                                                           |
| *User modification allowed* | false                                                          |
| *Usage*                     | directoryOperation                                             |
| *Origin*                    | [RFC 5020](https://datatracker.ietf.org/doc/html/rfc5020)      |
| *Schema file*               | 00-core.ldif                                                   |