Attribute Uniqueness Plug-in
143
3.1.4. Attribute Uniqueness Plug-in
Plug-in Parameter
Description
Plug-in Name
Attribute Uniqueness Plug-in
DN of Configuration Entry
cn=Attribute Uniqueness, cn=plugins, cn=config
Description
Checks that the values of specified attributes are
unique each time a modification occurs on an
entry. For example, most sites require that a user
ID and email address be unique.
Configurable Options
on | off
Default Setting
off
Configurable Arguments
To check for UID attribute uniqueness
in all listed subtrees, enter
uid "DN"
"DN"...
. However, to check for UID attribute
uniqueness when adding or updating entries
with the
requiredObjectClass
, enter
attribute="uid" MarkerObjectclass
= "ObjectClassName"
and,
optionally
requiredObjectClass =
"ObjectClassName"
. This starts checking for
the required object classes from the parent entry
containing the
ObjectClass
as defined by the
MarkerObjectclass
attribute.
Dependencies
Database
Performance Related Information
Directory Server provides the UID Uniqueness
Plug-in by default. To ensure unique values for
other attributes, create instances of the Attribute
Uniqueness Plug-in for those attributes. See the
"Using the Attribute Uniqueness Plug-in" in the
Directory Server Administrator's Guide
for more
information about the Attribute Uniqueness Plug-
in.
The UID Uniqueness Plug-in is off by default
due to operation restrictions that need to be
addressed before enabling the plug-in in a multi-
master replication environment. Turning the
plug-in on may slow down Directory Server
performance.
Further Information
See the"Using the Attribute Uniqueness Plug-in"
in the
Directory Server Administrator's Guide
.
3.1.5. Binary Syntax Plug-in
Plug-in Parameter
Description
Plug-in Name
Binary Syntax
DN of Configuration Entry
cn=Binary Syntax, cn=plugins, cn=config
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