From owner-freebsd-questions@FreeBSD.ORG  Wed Sep  8 15:59:11 2004
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Date: Wed, 08 Sep 2004 17:59:09 +0200
From: Nico Meijer <nico.meijer@zonnet.nl>
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Subject: Re: BSD display
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Hi Steve,

>  Displaying the OS helps a hacker know
> which  approach cracking into a box.

This may be true. OTOH, not displaying the version of [insert software 
package of the day here] may invite a 'hacker' to pull a full-scale 
all-out number on you, trying every possible exploit he can get his 
hands on. Or simply DDoS you out of this universe. Or launch whatever 
OS-agnostic attack can be performed.

I'm sure there have been long discussions over this 'security by 
obscurity' thing *somewhere*... ;-)

Buhbye... Nico

P.S. I guess nothing beats common sense coupled with regular upgrading.