Disable the Shutdown and Restart buttons in the login window. This feature prevents users from casually powering down a system that provides some shared service, such as a print server or file server. Request that loginwindow display a password hint after the user makes three attempts to log in. Administrators can set the hint when they create a user account, or users can set their own hint in the Password preferences pane. Select a custom authenticator.
Administrators have additional, more powerful means for affecting the behavior of loginwindow.
As with all applications, you can specify any defined parameters right after the executable name. The full path to a script or tool to run when a user succesfully logs in. The full path to a script or tool to run when a user succesfully logs out. You can also set it to an empty string. This feature prevents users from casually powering down a system that provides some shared service, such as a print server or file server.