From owner-freebsd-security  Thu Apr 19  5:46:52 2001
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From: Darren Reed <avalon@coombs.anu.edu.au>
Message-Id: <200104191246.WAA14999@caligula.anu.edu.au>
Subject: Re: non-random IP IDs
To: geniusj@bluenugget.net (Jason DiCioccio)
Date: Thu, 19 Apr 2001 22:46:19 +1000 (Australia/ACT)
Cc: avalon@coombs.anu.edu.au (Darren Reed),
	bright@wintelcom.net (Alfred Perlstein),
	freebsd-security@FreeBSD.ORG, net@FreeBSD.ORG
In-Reply-To: <004201c0c783$7fe71df0$4904a8c0@epylon.lan> from "Jason DiCioccio" at Apr 17, 2001 02:15:15 PM
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In some mail from Jason DiCioccio, sie said:
> 
>   From: "Darren Reed" <avalon@coombs.anu.edu.au>
>   Subject: Re: non-random IP IDs
> 
> 
>   > How long has your box been up ?  How many changes to the system config
>   > have been made since then ?  If you're not there, and it reboots, will
>   > it come up 100% functional ?  Do your computers need some amount of
>   > preventative maintenance like internal cleaning to deal with dust build
>   > up, etc ?
> 
> I don't know very many if any people that take their machines off the rack
> just to clean dust out of the case.
> 
>   > How many times do unscheduled reboots result in hardware not
>   > spinning back up and at an inconevient time ?
> 
> This would happen regardless of when/if you rebooted it.

If you plan for these events (usually outside business hours) then it is
generally less painful to deal with them.

[...]
>   > None of my personal boxes have uptimes that ever exceed 6 months, even
> my
>   > servers, but I have complete confidence in them rebooting and services
> being
>   > restarted (modulo file system damage from an unclean shutdown).
> 
> softupdates should take care of this, and as far as HD trouble, if you're
> system is really that important then mirror your disks.

Really ?

Darren

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