From: Matus Uhlar <uhlar@CCNEWS.KE.SANET.SK>
Subject: Re: Spatna adresa...
Date: Thu, 19 Dec 1996 13:49:33 +0100
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In cz.net.csinfo Dan Lukes <DAN@OBLUDA.KOLEJ.MFF.CUNI.CZ> wrote: -> Dne 12 Dec 96 v 13:01, Matus Uhlar uvedl(a): -> > adresa. nedavno v klube zmailer niekto narvhol ignorovat SMTP z pocitacov -> > ktore nemaju nic na porte 25... teda PC. NEviem preco niektore mailery -> > citajuce cez POP uprednostnuju posielanie cez SMTP... ale takto sa daju -> > adresy lahko falsovat. JE to smutne... -> Na prvni pohled to vypada pekne, ale nic by to neresilo. Pokud prestanou -> mailery brat postu od pocitacu na kterych nebezi mailer (tedy prevazne od PC) -> objevi se v zapeti nevelky rezident, ktery se bude spoustet pred prislusnym -> mail-programem a ktery bude simulovat SMTP daemona natolik, aby test druhe -> strany dopadl uspesne. Jinak nebude delat nic. Totez plati samozrejme pro -> IDENTD nebo jakykoli jiny zpusob, ktery byste si chtel vymyslet. SMTP je v -> soucasne dobe nezabezpecitelna sluzba. -> Aby se to zmenilo, musel by se zmenit cely system distribuce posty na -> hierarchickou (kazdy by bral postu pouze od "podrizenych" a posilal dal), to -> by ale, krome toho, ze soucasny system by nesel na tohle upravit (komkretne -> kvuli MX zaznamum) by prinesl vyrazne snizeni robusnosti transportniho -> mechanismu. -> Budeme si muset pockat na nejake SMTP-2, a jak by to slo resit -> principialne ani jestli zisk (nemoznost posilat spatne naadresovanou postu) -> je odpovidajici ztratam (treba zrovna robusnosti prenosu) ... V diskusnom klube k zmaileru sa hovorilo aj o tom ze kazdy mailer by mal prijat postu len ak - ide zo stroja pre ktory je tento mailer serverom - ide na takyto stroj - niektore specialne ine pripady To znamena ze by mailer odmietal prijimat posty s ktorymi by podla svojej konfiguracie nemal prist do styku. To by vlastne riesilo tento problem... A myslim ze to ani nepotrebuje SMTP-2, len lepsie mailery. -> Dan Lukes, Patkova 3/B1206, Praha 8, Czech Republic -> tel +42-(2)-8551040 ext 776, E-Mail: dan@obluda.kolej.mff.cuni.cz, -> aka: LUKES(or Postmaster)@Menza.MFF.CUNI.CZ and others -- E-mail: Matus.Uhlar@tuke.sk WWW: http://ccsun.tuke.sk/users/uhlar IRC: fantomas, TALK: uhlar@ccnews.ke.sanet.sk ...and if you think I'm talking for my employer, you're wrong...
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