On Tue, 2003-12-23 at 13:12, Kevin wrote:
> On Tue, 2003-12-23 at 12:17, George Gambill wrote:
> > Every now and then I notice intense disk activity. The disk light is on
>
> I'll bet it is updatedb or makewhatis or logrotate or something similar
> doing it's job. These janitorial functions are usually configured as
> cron jobs.
>
> man cron
> man crontab
> man anacron
> man anacrontab
>
> ls -halF /etc/cron.*
>
Also, when the disk is thrashing check the `top` command to see what is
working so hard.
Note the time of day it happens (and/or day of week) and check for a
matching entry in the appropriate /etc/cron.* file. If you are
unfamiliar with cron, there are plenty of web resources describing cron
syntax like:
http://www.tech-geeks.org/contrib/mdrone/cron-howto.html
For example, my box is setup to execute jobs in the /etc/cron.daily
directory at 04:02 every morning...
# cat /etc/crontab | grep daily
02 4 * * * root run-parts /etc/cron.daily
At that time every morning cron will launch these jobs...
# ls -hF /etc/cron.daily/
logrotate*
makewhatis.cron*
collect-honeypot*
tmpwatch*
tripwire-check*
snort-check*
...Kevin
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