[CentOS] Strangest thing (crond every 5 min.)

[Mário Gamito]

Hi,

I've installed CentOS-4 4 days ago.

Now, every 5 minutes, crond opens and close a root session, with no
other info. Example:

Apr 14 16:25:01 tux crond(pam_unix)[4031]: session opened for user root
by (uid=0)
Apr 14 16:25:02 tux crond(pam_unix)[4031]: session closed for user root


Every five minutes the same thing.

I have nothing in /etc/crontab that makes such a thing.

Does anyone knows why is this happening and what is crond doing ?

Any help would be apreciated.


/etc/crontab:
--------------------
[root at tux cron.daily]# cat /etc/crontab
SHELL=/bin/bash
PATH=/sbin:/bin:/usr/sbin:/usr/bin
MAILTO=root
HOME=/

# run-parts
01 * * * * root run-parts /etc/cron.hourly
02 4 * * * root run-parts /etc/cron.daily
22 4 * * 0 root run-parts /etc/cron.weekly
42 4 1 * * root run-parts /etc/cron.monthly
00 3 * * 5 root /usr/local/bin/backup
[root at tux cron.daily]#
--------------------------------------------


Warm Regards,
Mário Gamito