Use the UnregisterPlugin command to discontinue using an external security module with a repository. If you unregister the external security module, PowerCenter switches to repository authentication mode. All user passwords reset to the values in the repository instead of the values in the external directory. When you unregister the security module, you do not lose the mapping between the user names and the external security login names unless you enter the -g option. Use the mapping again if you register a new security module.
Although you can save the associations between external logins and user names, the Repository Manager does not display the external logins while running under user authentication.
You must use the -w or -W option to create a new password when you unregister the security module.