--- title: cn description: X.500 commonName attribute that contains the name of an object. component: pingds version: 8.1 page_id: pingds:schemaref:at-cn canonical_url: https://docs.pingidentity.com/pingds/8.1/schemaref/at-cn.html --- # cn X.500 `commonName` attribute that contains the name of an object. When used for a person, this attribute contains the full name. | | | | --------------------------- | 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| | *OID* | 2.5.4.3 | | *Names* | cn, commonName | | *Superior type* | [name](at-name.html) | | *Syntax* | [DirectoryString](s-DirectoryString.html) | | *Equality matching rule* | [caseIgnoreMatch](mr-caseIgnoreMatch.html) | | *Ordering matching rule* | [caseIgnoreOrderingMatch](mr-caseIgnoreOrderingMatch.html) | | *Substring matching rule* | [caseIgnoreSubstringsMatch](mr-caseIgnoreSubstringsMatch.html) | | *Single value* | false: multiple values allowed | | *User modification allowed* | true | | *Usage* | userApplications | | *Origin* | [RFC 4519](https://datatracker.ietf.org/doc/html/rfc4519) | | *Schema file* | 00-core.ldif | | *Used by* | [DUAConfigProfile](oc-DUAConfigProfile.html), [SolarisAuthAttr](oc-SolarisAuthAttr.html), [SolarisNamingProfile](oc-SolarisNamingProfile.html), [SolarisProfAttr](oc-SolarisProfAttr.html), [applicationEntity](oc-applicationEntity.html), [applicationProcess](oc-applicationProcess.html), [cRLDistributionPoint](oc-cRLDistributionPoint.html), [container](oc-container.html), [corbaContainer](oc-corbaContainer.html), [dSA](oc-dSA.html), [device](oc-device.html), [document](oc-document.html), [documentSeries](oc-documentSeries.html), [ds-monitor-aci](oc-ds-monitor-aci.html), [ds-monitor-branch](oc-ds-monitor-branch.html), [ds-monitor-changelog](oc-ds-monitor-changelog.html), [ds-monitor-connection-handler](oc-ds-monitor-connection-handler.html), [ds-monitor-entry-cache](oc-ds-monitor-entry-cache.html), [ds-monitor-groups](oc-ds-monitor-groups.html), [ds-monitor-health-status](oc-ds-monitor-health-status.html), [ds-monitor-http-connection-handler](oc-ds-monitor-http-connection-handler.html), [ds-monitor-ldap-connection-handler](oc-ds-monitor-ldap-connection-handler.html), [ds-monitor-logging](oc-ds-monitor-logging.html), [ds-monitor-subentries](oc-ds-monitor-subentries.html), [ds-monitor-unified-connection-handler](oc-ds-monitor-unified-connection-handler.html), [ds-monitor-work-queue](oc-ds-monitor-work-queue.html), [ds-pwp-password-policy](oc-ds-pwp-password-policy.html), [fr-idm-internal-role](oc-fr-idm-internal-role.html), [groupOfEntries](oc-groupOfEntries.html), [groupOfMembers](oc-groupOfMembers.html), [groupOfNames](oc-groupOfNames.html), [groupOfURLs](oc-groupOfURLs.html), [groupOfUniqueNames](oc-groupOfUniqueNames.html), [inetOrgPerson](oc-inetOrgPerson.html), [inheritableLDAPSubEntry](oc-inheritableLDAPSubEntry.html), [inheritedCollectiveAttributeSubentry](oc-inheritedCollectiveAttributeSubentry.html), [inheritedFromDNCollectiveAttributeSubentry](oc-inheritedFromDNCollectiveAttributeSubentry.html), [inheritedFromRDNCollectiveAttributeSubentry](oc-inheritedFromRDNCollectiveAttributeSubentry.html), [ipHost](oc-ipHost.html), [ipNetwork](oc-ipNetwork.html), [ipProtocol](oc-ipProtocol.html), [ipService](oc-ipService.html), [javaContainer](oc-javaContainer.html), [ldapSubEntry](oc-ldapSubEntry.html), [mailGroup](oc-mailGroup.html), [namedObject](oc-namedObject.html), [nisKeyObject](oc-nisKeyObject.html), [nisMailAlias](oc-nisMailAlias.html), [nisNetId](oc-nisNetId.html), [nisNetgroup](oc-nisNetgroup.html), [nisObject](oc-nisObject.html), [nisplusTimeZoneData](oc-nisplusTimeZoneData.html), [oncRpc](oc-oncRpc.html), [organizationalPerson](oc-organizationalPerson.html), [organizationalRole](oc-organizationalRole.html), [person](oc-person.html), [pilotDSA](oc-pilotDSA.html), [pilotPerson](oc-pilotPerson.html), [posixAccount](oc-posixAccount.html), [rFC822LocalPart](oc-rFC822LocalPart.html), [residentialPerson](oc-residentialPerson.html), [room](oc-room.html), [sambaSamAccount](oc-sambaSamAccount.html), [subentry](oc-subentry.html), [untypedObject](oc-untypedObject.html) |