Date: Mon, 23 Jun 1997 10:04:05 -0500 From: Edwin Culp <eculp@emprende.net.mx> To: spork <spork@super-g.com> Cc: chas <sweeting@tm.net.my>, freebsd-isp@FreeBSD.ORG Subject: Re: duplicate IP = security problem ? Message-ID: <33AE9065.D8C0E83@mexcom.net> References: <Pine.BSF.3.95q.970622202913.12939B-100000@super-g.inch.com>
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This is a multi-part message in MIME format. --------------6C80ADE372D55DA428DC5E40 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit spork wrote: > > > > > --------------------------------------------------------------- > > > > So, my questions are : > > > > 1) Could it be possible for someone to be using our IP ? > > And hence be on our network ? > > 2) What could I do if this happens again to gain control > > of the IP again ? > > 3) Any other explanations or advice ? > > > > Thank you very much. > > > > chas > > I'm attaching a c program that is supposed to spoof your name server and temporarily substitute it. I have only scanned the code but the concept is interesting. I had this and the the package that goes with the README.gz (second attachment) dumped on one of my linux machines in an attempt to do something that I probably wouldn't have liked. :-) I think these are worth looking at. 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