Examples—Limiting crontab Access to Specified Users

The following example shows a cron.deny file that prevents user names visitor, jones, and temp from accessing the crontab command.

$ cat /etc/cron.d/cron.denydaemon
bin
smtp
nuucp
listen
nobody
noaccess
jones
temp
visitor

The following example shows a cron.allow file. The users smith, jones, lp, and root are the only ones who can access the crontab command.

$ cat /etc/cron.d/cron.allow
root
jones
lp
smith