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What is external Directory Service

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What is external Directory Service

A directory service stores names and attributes of those names. A typical use for a directory service is to store user names and passwords for a computer system. Derby uses the Java naming and directory interface (JNDI) to interact with external directory services that can provide authentication of users' names and passwords.

Derby can use the following services:
* LDAP Directory Service
* User-Defined Class

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