You can see the daily jobs in /etc/cron.daily Whenever you install an RPM which needs 'maintenance' a file gets dropped in here for the daily processing.
For example logrotate will compress your old logs and delete the oldest entries. It will cause a bit of hard drive activity, but not a vast amount (unless you have big logs) The weekly job slocate.cron will cause a lot of harddrive activity, because it compiles a database of every file on your hard drive for use by the slocate command. (If you have it installed) The daily msec job is checking on the file permissions of all your system files, so that could cause a bit of activity. If you find the daily job annoying, why not set it to run at a more convenient time? It is only a matter of editing the /etc/crontab file. For instance in this line 56 10 * * * root nice -n 19 run-parts /etc/cron.daily All the scripts in location /etc/cron.daily are scheduled to run at 10:56 every day If you want a nice GUI to setup cron jobs, then there is one in webmin. derek On Tuesday 05 Nov 2002 6:15 pm, Noah Hicks wrote: > Well the only problem I'm having is that when it's running, it slows the > system down. There's a lot of HD activity and the programs I'm running > slow down significatly. This can last for a good 3-4 min. I find it kind > of irritating. Seems like it only does it once a day though. I'm just > running a laptop for webbrowsing, word processing and data analysis with a > few simple console apps. How high do my security settings need to be? > > Thanks for helping me figure this out > -Noah > > BTW is there something wrong with the list server? I got your reply but I > didn't get my own message. > > On Tuesday 05 November 2002 11:24, Derek Jennings wrote: > > If you stop anacron/cron then your system will not be able to perform > > essential maintenance. > > Your log files will fill up up to infinity, your temporary files will not > > be erased, and your system will not perform any security checks. > > > > What is the problem with having it running? > > > > derek > > > > On Tuesday 05 Nov 2002 7:20 am, Noah Hicks wrote: > > > I need to know how to get anacron to stop running as often as it seems > > > to be. I have found the task file in the /etc dir but I can't see how > > > to modify it and the man page is hard for me to understand. Could > > > anyone tell me how to do this? Unless there is some task I need it to > > > do, I would like to get it to cease completely. Can I just remove the > > > cron.daily and cron.weekly files? This is what I have now: > > > > > > [noah@localhost etc]$ cat anacrontab > > > # /etc/anacrontab: configuration file for anacron > > > > > > # See anacron(8) and anacrontab(5) for details. > > > > > > SHELL=/bin/sh > > > PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin > > > > > > # These entries are useful for a Mandrake system. > > > 1 5 cron.daily run-parts /etc/cron.daily > > > 7 10 cron.weekly run-parts /etc/cron.weekly > > > 30 15 cron.monthly run-parts /etc/cron.monthly > > > > > > > > > > > > Thanks > > > Noah
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