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Old Unix and Linux 02-03-2004
Latha Nair Latha Nair is offline
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Cron Allow

I am trying to run a job once every hour starting at 7:00 am, and ending at 9:00 pm. After reading up on crontab command, I checked for the cron.allow file and cron.deny file. We do seem to have a cron.deny file, but there is no cron.allow file. The cron.deny file is empty. Do I setup a cron. allow file just by using editor? Please let me know. I read that a user cannot use the crontab command if the cron.allow file and the cron.deny file do not exist.

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Latha Nair
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User Commands                                          crontab(1)

     crontab - user crontab file

     crontab [ filename ]

     crontab [ -elr ]  username

     The crontab utility manages a user's access with  cron  (see
     cron(1M))  by copying, creating, listing, and removing cron-
     tab files.  If invoked without options, crontab  copies  the
     specified  file,  or the standard input if no file is speci-
     fied, into a directory that holds all users' crontabs.

  crontab Access Control
     Users: Access to crontab is allowed:

        o  if the user's name appears in /etc/cron.d/cron.allow.

        o  if  /etc/cron.d/cron.allow  does  not  exist  and  the
           user's name is not in /etc/cron.d/cron.deny.

     Users: Access to crontab is denied:

        o  if /etc/cron.d/cron.allow exists and the  user's  name
           is not in it.

        o  if /etc/cron.d/cron.allow does not  exist  and  user's
           name is in /etc/cron.d/cron.deny.

        o  if  neither  file  exists,  only  a  user   with   the
           solaris.jobs.user authorization is allowed to submit a

     Note that the rules for allow and deny apply to root only if
     the allow/deny files exist.

# cat /etc/cron.d/cron.deny
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