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Chapter 3. Plug-in Implemented Server Functionality Reference

This chapter contains reference information on Red Hat Directory Server plug-ins.

The configuration for each part of Directory Server plug-in functionality has its own separate entry and

set of attributes under the subtree cn=plugins, cn=config.

dn: cn=Telephone Syntax, cn=plugins, cn=config

objectclass: top

objectclass: nsSlapdPlugin

objectclass: extensibleObject

cn: Telephone Syntax

nsslapd-pluginPath: libsyntax-plugin

nsslapd-pluginInitfunc: tel_init

nsslapd-pluginType: syntax

nsslapd-pluginEnabled: on

Some of these attributes are common to all plug-ins while others may be particular to a specific plug-in.

Check which attributes are currently being used by a given plug-in by performing an ldapsearch on

the cn=config subtree.

All plug-ins are instances of the nsSlapdPlugin object class, which in turn inherits from the

extensibleObject object class. For plug-in configuration attributes to be taken into account by the

server, both of these object classes (in addition to the top object class) must be present in the entry, as

shown in the following example:

dn:cn=ACL Plugin, cn=plugins, cn=config

objectclass:top

objectclass:nsSlapdPlugin

objectclass:extensibleObject

3.1. Server Plug-in Functionality Reference

The following tables provide a quick overview of the plug-ins provided with Directory Server, along with

their configurable options, configurable arguments, default setting, dependencies, general performance-

related information, and further reading. T hese tables assist in weighing plug-in performance gains and

costs and choose the optimal settings for the deployment. T he Further Information section cross-

references further reading, where this is available.

3.1 .1. 7-bit Check Plug-in

Plug-in Pa ramet er Description

Plug-in Name 7-bit check (NS7bitAtt)

DN of Configuration Entry cn=7-bit check, cn=plugins, cn=config

Description Checks certain attributes are 7-bit clean

Configurable Options on | off

Default Setting on

Configurable Arguments List of attributes (uid mail userPassword)

followed by "," and then suffixes on which the

check is to occur.

Dependencies None

Performance Related Information None

Further Information If the Directory Server uses non-ASCII characters,

such as Japanese, turn this plug-in off.

3.1 .2. ACL Plug-in

Plug-in Pa ramet er Description

Plug-in Name ACL Plug-in

DN of Configuration Entry cn=ACL Plugin, cn=plugins, cn=config

Description ACL access check plug-in

Configurable Options on | off

Default Setting on

Configurable Arguments None

Dependencies None

Performance Related Information Access control incurs a minimal performance hit.

Leave this plug-in enabled since it is the primary

means of access control for the server.

Further Information See the "Managing Access Control" chapter in

the Directory Server Administrator's Guide.

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