As an administrator, you decide to switch from the LDAP security module back to repository authentication. You remove the user name-login mapping. Any users that you added to the system under repository authentication can log in with their old user names and passwords. Any users you added to the repository under the LDAP security cannot log in until you enable their user names.
You must provide the LDAP NIS login and password to use the UnregisterPlugin command. You must also provide a new password to use after you switch back to user authentication.