From: Christopher Brown <chrsbrwn@mindspring.com>
Subject: Re: HDD at midnight
Date: Wed, 16 Jun 1999 10:24:59 -0400


> 3:15am is when cron does its daily run. This is when it produces the
> daily report and daily insecurity report that you might have seen in
> your inbox (or root's, if you haven't set up /etc/aliases to forward
> root's mail to your account). 
> 
> One of the things that the daily insecurity report does is use find to
> check for setuid/setgid files on your hard drive, necesitating a search
> over the whole drive. That's almost defininitely the source of the hard
> drive accesses and system slowdown that you noticed.
> 
> You can configure a lot of the stuff that it does, look at
> /etc/daily.conf and /etc/security.conf , along with the relevant man pages.
> 
> -- 
> Chris Brown -- Macintosh networking/Web development
> <chrsbrwn@mindspring.com> <http://www.mindspring.com/~chrsbrwn>

I got it. 

Thanks for teaching me, Chris & mcmahill@mtl.mit.edu .

---
Shigeki Uno