Re: X.400


From: Jirka Prchal <prchal@JIA.PVT.CZ>
Subject: Re: X.400
Date: Mon, 5 Feb 1996 16:45:46 +0100

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Matej Cepl"@LF3.CUNI.CZ writes:
)
) Dobry den,
)
)         mohl by mi nekdo, prosim, vysvetlit, co to je X.400 a jaky je
) jeho pomer k Internetu? Je to [jak se domnivam] nezavisla sit [na zpusob
) Compuserve, nebo FidoNet] nebo je to neco docela jineho? Je-li to nejaka
) sit existuje do ni Internet gateway?
)
)                                         Dekuji
)                                                         Matej Cepl
 
  Pokud se nemylim, pak X.400 je ISO norma definujici sluzby
a protokoly pro zasilani elektronicke posty. Neurcuje smerovani zprav
mezi uzly ani styk uzivatele s agentem. Z definovanych protokolu napr.:
pro predlozeni a odebrani zpravy, store & forward... Jsou definovany
tri datove jednotky - zprava, navratka a testovaci zprava.
  Z typickych sluzeb: odebirani a predavani zprav, casove razitkovani,
typovani tel zprav (ASCII, FAX, digitalni FAX, videotex...), identifikovani
zprav jednoznacnym ID, informovani o nedoruceni zpravy...
  Pro identifikaci je zaveden system hierarchickych jmen.
Stat, spravni domeny, privatni spravni domeny, osoba, organizace,
oddeleni v organizaci...
  Z existujicich siti ktere pouzivaji X.400 (nebo jistou modifikaci)
(a maji mailovou gateway) napr.: arcom, envoy, gold-400,
   keylink, mailnet...
napr. adresa john.q.smith@org_unit.org.prmd.gold-400.gb  odpovida
/G=John/I=Q/S=Smith/OU=org_unit/O=org/PRMD=prmd
ADMD=gold 400/C=GB/
 
(MD - spravni domena, PRMD - privatni spravni domena...)
 
  O dalsich gatewayich snad nekdo napise vice.
 
     Jirka Prchal
 
--
PVT a.s. divize Jihlava      E-mail: prchal@jia.pvt.cz
Brezinova 19a                Phone:  +42-66-7116362
586 01 Jihlava               Fax:    +42-66-7116323
Czech Republic

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