To delete a user
Select the checkbox to the left of the name of the user(s) to be deleted.
Click Delete.
Click Close to return to the Edit Realm page.
delete-file-user
In mutual authentication, both server and client-side authentication are enabled. To test mutual authentication, a client with a valid certificate must exist. For information on mutual authentication, see the Security section of the http://java.sun.com/javaee/5/docs/tutorial/doc/index.html.
To enable mutual authentication for a specific application, in the deployment descriptor, set the method of authentication to Client-Certificate. For more information about using deploytool, refer to the Security section of the Java EE 5 Tutorial.