I have a shadow file and I'd like to know who has administrator access to UNIX.
Included below is an example of how the shadow file looks like.
From my understanding, only root has administrative rights? Is this correct?
Also, is it possible to restrict users to login directly to the 'application' username? Can I require that users use the 'su' command to log into the account? Or are users always able to login to the 'application' account without having to 'su'?