Date: Mon, 28 Jul 1997 04:40:47 -0800 From: "Nicole H." <nicole@mediacity.com> To: "Nicole H." <nicole@mediacity.com>, Brian Buchanan <brian@thought.res.cmu.edu> Cc: security@FreeBSD.ORG Subject: Re: Detecting sniffers (was: Re: security hole in FreeBSD) Message-ID: <Chameleon.870090090.nmh@geekgirl> References: <Pine.BSF.3.96.970728190019.26892A-100000@thought.res.cmu.edu>
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> On Mon, 28 Jul 1997, Nicole H. wrote: > > > Does anyone know of a good way to detect people "sniffing" on the network? IE a program that will detect a > > machine running in promiscuous mode? > > > > I was wondering the same thing when I read a clause prohibiting the use of > network cards in promiscuous mode in the CMU network use policy. I asked > some computer security people I knew about this and their response was > that it is not possible to detect if a network card is in promiscious mode > unless you have access to the machine it's in - i.e., that you can look at > ifconfig on that machine. <STUPID QUESTION> What is the range of sniffing? I.E. can the "sniffer" sniff past switched networks? What is the "range" of sniffing? </STUPID QUESTION> Thanks Nicole nicole@mediacity.com |\ __ /| (`\ http://www.mediacity.com Nicole Harrington | o_o |__ ) ) Phone: 415-237-1464 // \\ Pager: 415-301-2482 Systems Administrator ------------------------(((---(((------------------------------------- ******* * ***** What do you mean Spelling Errors? * * * My Modem is Error Correcting! * CAUTION: I'm no doctor, I only tell computers what to do. Nothing in this document should be construed as medical advice. My opinions are subject to the availability of information. I learn new things each day, and so may change my opinions. Courtesy is owed. Respect is earned. Love is given. -- -----------------------------------------------------------------------
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