The enforces constraints on the value of an attribute within a portion of the directory. The values for each attribute must be unique within each base DN specified in the plugin's base-dn property or within all of the server's public naming contexts if no base DNs were specified. ds-cfg-unique-attribute-plugin ds-cfg-plugin org.opends.server.plugins.UniqueAttributePlugin preoperationadd preoperationmodify preoperationmodifydn postoperationadd postoperationmodify postoperationmodifydn postsynchronizationadd postsynchronizationmodify postsynchronizationmodifydn Specifies the type of attributes to check for value uniqueness. ds-cfg-type Specifies a base DN within which the attribute must be unique. The plug-in uses the server's public naming contexts in the searches. ds-cfg-base-dn