Mail Server

I.Ioannou roryt at roryt.gr
Mon Oct 1 16:58:01 EEST 2001


Spyros Dimas wrote:
> 
> Otan kano telnet 194.219.89.x 25 perno:

Genika Spyro mas ta les ligo mperdemena. Prwta kai kyria ti dianomi
exeis
na mhn manteyoume !!

1) ta alla mixanimata mporoun na kanoun telnet sto linux sthn 25 porta ?
An nai tote den koitas to sendmail.mc (to sendmail sou akouei se oles
tis IPs)
oute ta firewall rules, oute -pithanwn- hosts.deny/hosts.allow
Sthn antitheti periptwsh prepei na koitakseis kai auta

2) exeis dhlwsei swsta to hostname ? Dhladi an dwseis thn entolh
hostname, ti sou apantaei ? An sou apantaei localhost.localdomain prepei 
na to fiakseis (/etc/HOSTNAME an thimamai sto slack,
/etc/sysconfig/network sta
Redhat-like, sta alla....)
An einai swsto kai omws epimenei, koitakse sto sendmail.cf gia thn
dhlwsh Dj
(kamia sxesh me ton listarxo mas :-) )

3) An olla ta alla einai ok kai pali den mporeis na steileis mails koita
ta /etc/mail/xxxxx arxeia (me protaireotita sto access, sto
local-hostnames) klp
Edw tha prepei na koitakseis ta doc tou sendmail


4) to pop einai teleiws allh istoria, koita me thn seira :
   a) an to exeis (Sta redhat-like einai sto paketo imap, genika
psaxneis
      gia kati pou na einai pop3d, ipopd, ipop3d, k.o.k sinithws sto
/usr/sbin)
   b) an to exeis, trexei apo mono tou (px apo to rc.local) h me inetd
(xinetd) ?
      An to 2o einai energopoihmeno sto antistoixo config ?
   c) hosts.allow/hosts.deny ?
   d) firewall rules ?

    dokimazeis me telnet sto linux sthn 110 kathe fora

Aaa, kai kati allo, apo to idio to linux, arketes aporeies tha mporouse
na sou 
lysei h : 
netstat -a | less

roryt



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