nanog mailing list archives

Re: Echo


From: Brad Knowles <brad.knowles () skynet be>
Date: Fri, 16 Aug 2002 23:46:51 +0200


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.

GCS/IT d+(-) s:+(++)>: a C++(+++)$ UMBSHI++++$ P+>++ L+ !E W+++(--) N+ !w---
O- M++ V PS++(+++) PE- Y+(++) PGP>+++ t+(+++) 5++(+++) X++(+++) R+(+++)
tv+(+++) b+(++++) DI+(++++) D+(++) G+(++++) e++>++++ h--- r---(+++)* z(+++)


Current thread: