Sometimes could be useful to get automatic access to your Ubuntu box.
Imagine you want a default user that can access the Inernet, You could create the user with the specifics authorizations then with the autologin nobody of the users of your Ubuntu box needs to authenticate.
- open the System Menu->Administration->Login Window(Finestra di Accesso in Italian)
- Enter your administration password in to the dialog that willl appear.
- In the Login Window Preferences select the Security tab.
- Check "Enable Automatic Login"
- Close the window to save dìthe changes.
In the same way you could disable the Automatic login.
Gg1