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Re: Detecting a sniffer
From: Valdis.Kletnieks () vt edu (Valdis.Kletnieks () vt edu)
Date: Wed, 03 May 1995 15:34:27 -0400

On Tue, 02 May 1995 17:56:32 +1000, Julian Assange said:
On Mon, 1 May 1995, Bennett Todd wrote:
You can't "detect a sniffer" from looking at the net; [...]
Not even with a Time Domain Reflectometer?
Probably easier to just look at the wire, dodn't you think?

Especially considering that most TDR boxen I've seen sort of screw the
cable while they're running - all those electromagnetic sonar pulses sort
of piss off anything trying to transmit at the time. ;)

If you're *really* concerned about sniffers on your Ethernet, just take
that little 50ohm terminator on the end off - the bits will leak out
before the sniffer can see them.  Make sure you put the end of the
cable in a bucket so the bits dont get all over the floor...

                                Valdis Kletnieks
                                Computer Systems Engineer
                                Virginia Tech

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