cron.allow and cron.deny in slackware?

tl64 · 10-11-2005, 03:56 PM

Hi,

How do I allow/deny users from using cron? Do we use cron.allow / cron.deny or something else? Thanks...
(I searched everywhere including slackbook but no specific info)

tobyl · 10-11-2005, 04:34 PM

try
man crontab

or /usr/doc/dcron-2.3.3

slackware uses dcron (dillon's cron) along with many distros

its handy to be familiar with vi editor, as crontab -e uses it

type vimtutor for a great intro to vi.....

tl64 · 10-12-2005, 12:58 PM

Thanks for the response. I've read the man page, slackbook from slakcware website, and the /usr/doc/dcron-2.3.3 info. Nothing mentioned about crontab.allow/deny or similar method to authorize user to use it. Is there any other referenecs?

Still searching....

Thanks

gbonvehi · 10-12-2005, 01:50 PM

As far as I know, Dillons Cron doesn't support a config file to allow/deny users to edit their cron jobs.
The easiest way to get a similar system would be to remove the others+execute permission on /usr/bin/crontab and add the users you want to the group bin (the group crontab belongs too, or change bin to another group of your choice).

tobyl · 10-12-2005, 04:20 PM

crontab is controlled by root. root specifies which users may have access to cron.

from man cron:

crontab manipulates the crontab for a particular user. Only the superuser may
specify a different user and/or crontab directory. Generally the -e option is used
to edit your crontab. crontab will use /usr/bin/vi or the editor specified by your
VISUAL environment variable to edit the crontab.

is that what you mean?

tobyl

Berhanie · 10-13-2005, 09:44 PM

This is from the README in /usr/doc/dcron. It goes against the Slackware policy of having root:bin permissions on files inside /usr/bin, but...

Quote:

Permissions should be as outlined below. You will want to create a
special 'cron' group in which you put those users that are allowed
to use the crontab program.

-rwx------ 1 root wheel 24864 Apr 27 09:02 /usr/bin/crond*
-rwsr-x--- 1 root cron 24311 Apr 27 09:02 /usr/bin/crontab*