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    SubjectRe: Evil TCPD? (Was: Re: UseNet Gateway One Way ok?)
    Date
      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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