The is used enforce constraints on the value of an attribute within a portion of the directory. ds-cfg-unique-attribute-plugin ds-cfg-plugin org.opends.server.plugins.UniqueAttributePlugin preoperationadd preoperationmodify preoperationmodifydn postsynchronizationadd postsynchronizationmodify postsynchronizationmodifydn Specifies the attribute type to check for value uniqueness. Specifies the attribute type to check for value uniqueness. The values for each ds-cfg-type attribute must be unique within each base DN specified in the configuration's ds-cfg-base-dn attribute or within all of the server's public naming contexts if no base DNs were specified in the configuration. The plugin will not start if at least one of these is not defined. ds-cfg-type Specifies a base DN that the attribute must be unique within. Specifies a base DN that the attribute must be unique within. The plugin will use the server's public naming contexts in the searches. ds-cfg-base-dn