---
title: aci
description: Values are Access Control Instructions (ACI). See the directory documentation for details.
component: pingds
version: 8.1
page_id: pingds:schemaref:at-aci
canonical_url: https://docs.pingidentity.com/pingds/8.1/schemaref/at-aci.html
---

# aci

Values are Access Control Instructions (ACI). See the directory documentation for details.

|                             |                                                                                   |
| --------------------------- | --------------------------------------------------------------------------------- |
| *OID*                       | 2.16.840.1.113730.3.1.55                                                          |
| *Names*                     | aci                                                                               |
| *Description*               | Sun-defined access control information attribute type                             |
| *Syntax*                    | [Sun-definedAccessControlInformation](s-Sun-definedAccessControlInformation.html) |
| *Equality matching rule*    | [octetStringMatch](mr-octetStringMatch.html)                                      |
| *Ordering matching rule*    | [octetStringOrderingMatch](mr-octetStringOrderingMatch.html)                      |
| *Single value*              | false: multiple values allowed                                                    |
| *User modification allowed* | true                                                                              |
| *Usage*                     | directoryOperation                                                                |
| *Origin*                    | Sun Java System Directory Server                                                  |
| *Schema file*               | 00-core.ldif                                                                      |