You can set up a file to control access to the at command, permitting only specified users to create, remove, or display queue information about their at jobs. The file that controls access to the at command, /etc/cron.d/at.deny, consists of a list of user names, one per line. The users listed in this file cannot access at commands.
The at.deny file, created during SunOS software installation, contains the following user names:
daemon bin smtp nuucp listen nobody noaccess |
With superuser privileges, you can edit the at.deny file to add other user names whose at access you want to restrict.