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|Oracle Directory Server Enterprise Edition Administration Guide 11g Release 1 (188.8.131.52.0)|
The UID uniqueness plug-in ensures that the value of a given attribute is unique among all entries of the directory or of a subtree. The plug-in stops any operation that tries to add an entry that contains an existing value for the given attribute. The plug-in also stops any operation that adds or modifies the attribute to a value that already exists in the directory.
The UID uniqueness plug-in is disabled by default. When the plug-in is enabled, it ensures the uniqueness of the uid attribute by default. You can create new instances of the plug-in to enforce unique values on other attributes. The UID uniqueness plug-in ensures attribute value uniqueness on a single server.
This chapter covers the following topics: