Before you begin
Virtual user authentication is the means by which you can authenticate a user who is not defined in the identity store with which the security realm is configured, as explained in Authenticating a User Not Defined in the Identity Store.The subject corresponding to the virtual user is populated with information that is obtained from attributes in the user's certificate that is passed in when making the SSL connection to WebLogic Server.
Result
Virtual users are enabled in the WebLogic Identity Assertion provider you have configured in the security realm.
After you finish