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## 4 Kerberos Authentication Service

Existing or new installations of Oracle NoSQL Database can be configured to use Kerberos as an external authentication service. Kerberos is an industry standard authentication protocol for large client/server systems.

Setting up and configuring a Kerberos deployment is beyond the scope of this chapter. This chapter assumes that you have a running Key Distribution Center (KDC) and realm setup.

This chapter first describes some Kerberos concepts and then shows you how to configure existing or new installations of Oracle NoSQL Database to use Kerberos as an external authentication service.