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LDAP Administration Guide
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11.1. Distributed Schema Files

OpenLDAP Software is distributed with a set of schema specifications for your use. Each set is defined in a file suitable for inclusion (using the include directive) in your slapd.conf(5) file. These schema files are normally installed in the /usr/local/etc/openldap/schema directory.

Table 8.1: Provided Schema Specifications
File Description
core.schema OpenLDAP core (required)
cosine.schema Cosine and Internet X.500 (useful)
inetorgperson.schema InetOrgPerson (useful)
misc.schema Assorted (experimental)
nis.schema Network Information Services (FYI)
openldap.schema OpenLDAP Project (experimental)

To use any of these schema files, you only need to include the desired file in the global definitions portion of your slapd.conf(5) file. For example:

        # include schema
        include /usr/local/etc/openldap/schema/core.schema
        include /usr/local/etc/openldap/schema/cosine.schema
        include /usr/local/etc/openldap/schema/inetorgperson.schema

Additional files may be available. Please consult the OpenLDAP FAQ (

Note: You should not modify any of the schema items defined in provided files.

LDAP Administration Guide
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  Published under the terms of the OpenLDAP Public License Design by Interspire