Ask for Permission Users

If you enable the Guests May Ask For Permission option on the Guests tab in the Security dialog box, a guest who does not have permission to use a particular service can request permission to use that service on a one-time-only basis. (See Granting a Service to Ask For Permission Users.) If a remote user attempts to connect to your computer using a service he or she has not been granted, a dialog box will appear on your screen giving the name of the remote computer and specifying the service the user wishes to access. The Ask For Permission User must wait for you to click OK before they can access your computer. See Admitting an Ask For Permission User.

Ask For Permission Users require you to be at your computer to authorize a remote session.