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About Oracle WebLogic Server Security Realms

A security realm comprises mechanisms for protecting Oracle WebLogic Server resources. Each security realm consists of a set of configured security providers, users, groups, security roles, and security policies. You must define a user in a security realm to access any WebLogic resources belonging to that realm. When a user attempts to access a particular WebLogic resource, Oracle WebLogic Server tries to authenticate and authorize the user by checking the security role assigned to the user in the relevant security realm and the security policy of the particular WebLogic resource.

You can configure multiple security realms in a domain, however, only one can be the default (active) security realm. Oracle WebLogic Server provides one default security realm: myrealm. For more information about security realms, see Oracle® Fusion Middleware Understanding Security for Oracle WebLogic Server 11g Release 1 available in the Oracle Fusion Middleware 11g Release 1 Documentation Library.