[50982] in North American Network Operators' Group

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Re: Echo

daemon@ATHENA.MIT.EDU (Brad Knowles)
Fri Aug 16 17:49:46 2002

In-Reply-To: <20020816214308.B2983@mail.webmonster.de>
Date: Fri, 16 Aug 2002 23:46:51 +0200
To: "Karsten W. Rohrbach" <karsten@rohrbach.de>,
	Brad Knowles <brad.knowles@skynet.be>
From: Brad Knowles <brad.knowles@skynet.be>
Cc: Martin Hannigan <hannigan@fugawi.net>, nanog@merit.edu
Errors-To: owner-nanog-outgoing@merit.edu


At 9:43 PM +0200 2002/08/16, Karsten W. Rohrbach wrote:

>  - scoreboard: one mail from one source addres in one minute time window

	Do you just queue messages from source addresses, so that you 
don't generate more than one echo in a minute, or do you throw away 
every message from that source address which was generated less than 
one minute ago?

	Also, how do you handle echoes of echoes?  For example, if I 
forged e-mail as being from echo@psi.net and addressed that to 
echo@rohrbach.de (or whatever), would this generate an endless loop?

	What if I put "echo@psi.net,echo@psi.net" as the return address? 
Would you send back two copies?


	Just curious.  Thanks!

-- 
Brad Knowles, <brad.knowles@skynet.be>

"They that can give up essential liberty to obtain a little temporary
safety deserve neither liberty nor safety."
     -Benjamin Franklin, Historical Review of Pennsylvania.

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