Messages in this thread | | | From | (Matthias Urlichs) | Subject | Re: Evil TCPD? (Was: Re: UseNet Gateway One Way ok?) | Date | 26 May 1997 12:43:05 +0200 |
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Jon Lewis <jlewis@inorganic5.fdt.net> writes: > > > - Intentionally drop packets... (give them _less_ than UDP priority) > > ("He's sending packets too fast... drop 'em") > > This may keep their system busy, but it won't do a lot of good for your > net connection either. > The best thing to do would be to accept the mail (with _really_ low bandwidth) up to the final dot but instead of sending the final SMTP "ok-delivered" message you do "getchar(SMTP); exit(99);". Bingo, their SMTP is blocked until they decide to timeout (and it's a really long timeout at this point). If enough people do this...
> BGP "accidents" with bogus as paths might be interesting too. > Since they connect directly to mae-east... it'd be possible to grab their networks, though; simply publish two /16s for each /15 they announce, and so on. (agis.net has a _lot_ of networks. Way too many, in fact. It seems that they're equally interested in conserving IP numbers as in listening to spam receivers' complaints.)
-- Corollaries: 1) When things just can't get any worse, they will. 2) Anytime things appear to be going better, you have overlooked something. -- Matthias Urlichs \ noris network GmbH / Xlink-POP Nürnberg Schleiermacherstraße 12 \ Linux+Internet / EMail: urlichs@noris.de 90491 Nürnberg (Germany) \ Consulting+Programming+Networking+etc'ing PGP: 1024/4F578875 1B 89 E2 1C 43 EA 80 44 15 D2 29 CF C6 C7 E0 DE Click <A HREF="http://info.noris.de/~smurf/finger">here</A>. 42
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