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Date:      Sat, 22 Aug 1998 02:09:03 +0200 (CEST)
From:      Mikael Karpberg <karpen@ocean.campus.luth.se>
To:        rabtter@aye.net (B. Richardson)
Cc:        hackers@FreeBSD.ORG
Subject:   Re: I want to break binary compatibility.
Message-ID:  <199808220009.CAA05667@ocean.campus.luth.se>
In-Reply-To: <Pine.SGI.3.95.980821185606.1979A-100000@orion.aye.net> from "B. Richardson" at "Aug 21, 98 07:12:40 pm"

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According to B. Richardson:
> 
> 
> I have a problem with some hackers that are obsessed with making my
> ISP's life miserable (they've already hacked our SGI). I've slapped
> together a FreeBSD box to throw their webpages on it, turned off all
> services except http.
> 
> The hackers have expressed intent to break into our machines at
> any opportunity (they seem to be infuriated that we intervened and
> was able to keep a couple of services up on our SGI).
> 
> The hackers relentlessly attacked our machine every time we tried to
> bring our SGI online for a 48 hour stretch, and I believe that are
> going to try to break into our new machines with the same fervor.
> 
> What I want to do, if possible is build a uniq system such that binaries
> from other systems will not run on it and vice versa. Is this possible?

One simple way could be to just change the "magic number" on the binaries,
maybe, and disable all linux compat, etc?

  /Mikael

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