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Overview of Oracle RDBMS Authentication Methods (Doc ID 1349872.1)

Last updated on MARCH 12, 2021

Applies to:

Advanced Networking Option - Version to [Release 8.1.7 to 11.2]
Information in this document applies to any platform.
Checked for relevance on 24-May-2013


This note  is intended to provide an overview of the available Oracle RDBMS authentication methods. 


This document is meant for use as a guide by those who are trying to decide for an authentication method.


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In this Document
 Database Authentication
 OS Authentication
 Strong authentication methods
 Kerberos Authentication
 Global Authentication (Enterprise User Security - EUS)
 RADIUS Authentication
 SSL Authentication
 Frequently Asked Questions
 1) Is it possible to configure Single Sign On (SSO) for an Oracle database?
 EUS with SSL and EUS with Kerberos
 Using The Secure External Password Store 
 2) What is the recommended authentication method? What are the advantages / disadvantages of all the authentication methods provided by Oracle?
 3) What authentication methods can be used for SYSDBA SYSOPER connections?
 4) Is it possible to use several authentication methods at the same time?
 5) How to change change the authentication method for one particular database user?

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