Domain Name System - UPT

Domain Name System - UPT

Servere de mail Componenta de Transfer - Componentele serverului de mail : MTA Mail Transfer Agent MUA Mail User Agent - Protocolul SMTP (Simple Mail Transfer Protocol)

Aplicatie ce utilizeaza portul 25 TCP Comenzi uzuale : helo , ehlo mail from: , rcpt to: Sendmail - Daemon foarte complex - Fisierul de configurare principal : /etc/sendmail.cf - Fisiere auxiliare : /etc/aliases baza de date cu

alias-uri /etc/sendmail.cw alias-urile pentru numele de masina - Controlul accesului : /etc/mail/access - structura fisierului - regenerarea fisierului

Probleme Sendmail - Ce inseamna RELAY Ce inseamna sa fii OPEN RELAY Ce este SPAM Reguli internationale anti-spam Baze de date pe net cu open-relays

Sendmail - linuxconf - Configurare mai usoara - Domenii virtuale Componenta Utilizator - Fisierele de spool (imbox) din directorul /var/spool/mail

- Utilitare de mail pentru linux : - pine - mutt - elm - mailx - Cum trimitem mail folosind telnet Protocoale user-level

- POP3 (Post Office Protocol) - IMAP (Internet MAil Protocol ) - Configurarea daemonilor fisierul /etc/inetd.conf - Probleme de securitate - Ce este SSL Alternative

- QMAIL - Postfix

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