Editing Cron (section)

=== Cron permissions ===
These two files play an important role:
* '''/etc/cron.allow''' – If this file exists, it must contain the user's name for that user to be allowed to use cron jobs.
* '''/etc/cron.deny''' – If the cron.allow file does not exist but the /etc/cron.deny file does exist then, to use cron jobs, users must not be listed in the /etc/cron.deny file.

Note that if neither of these files exists then, depending on site-dependent configuration parameters, either only the super user can use cron jobs, or all users can use cron jobs.