From: Allan Ballard (aballard_at_ix.netcom.com)
Date: Tue Jul 25 2000 - 12:58:26 EDT
Thanks.
I guess I was thinking of servers on the internet, though.
It hadn't occurred to me to think of a LAN.
On Tue, 25 Jul 2000 12:09:54 -0400 (EDT), Ken D'Ambrosio wrote:
>> can a 'sniffer' be used to capture selective
>> email -- or just all email headed to or from
>> someone or a business?
>
>General rule: a sniffer catches /all/ traffic on a given (ethernet)
>segment. Note that good sniffers can allow you to set up rules
>(eg. watch for "string" or "IP address", etc.), so, to answer you
>question, yes/no. ;-)
>
>-Ken
>
>> On Tue, 25 Jul 2000 11:17:11 -0400, David Newman wrote:
>>
>> >>
>> >> What is a packet sniffer, if you don't mind.
>> >
>> >A sniffer* is a software and/or hardware tool that listens to the
>> >transmission medium for any traffic going by, captures it, and decodes the
>> >traffic for later analysis. Usually the medium is copper wire, or fiber
>> >optic cabling, but it doesn't have to be -- there are also sniffers for
>> >wireless networks that pick signals out of the air.
>> >
>> >> If I lived in a tech-savvy neighborhood, I'd want a packet sniffer on
>> >> my wireless net, especially if the surrounding homes could pick up my
>> >> signal.
>> >
>> >not sure how sniffer would be of any help as a defensive measure. One major
>> >security issue with sniffers is that they're passive devices and it's
>> >difficult if not impossible to tell when other folks are using them to
>> >capture your traffic.
>> >
>> >Regards,
>> >David Newman
>> >Network Test
>> >
>> >*Sniffer with a capital S is a trademark for a widely used commercial
>> >protocol analyzer. It was developed by Network General Corp., which was
>> >later acquired by Network Associates Inc.
>> >
>>
>>
>>
>>
>
This archive was generated by hypermail 2.1.3 : Thu Jan 23 2003 - 09:56:15 EST