Re: cannot telnet port 25 from other hosts

[Giovanni Riganti <admin linux eco uninsubria it>]

Alle 16:27, mercoledì 28 luglio 2004, ssoss S ha scritto:
> hi..  I found that I cannot telnet my linux box (fedora core1) via port 25
> (SMTP) but the SMTP service is started.  I can telnet to localhost via port
> 25.  May I know where is the config to control and allow me to telnet
> mylinux 25 from other hosts??
>
> FYI, my sendmail version is
> [root watcher root]# telnet localhost 25
> Trying 127.0.0.1...
> Connected to localhost.
> Escape character is '^]'.
> 220 watcher.teasin.com ESMTP Sendmail 8.12.10/8.12.10; Wed, 28 Jul 2004
> 22:19:17
> +0800

Hi,


.........
By default, the Sendmail mail transport agent (MTA) does not accept network 
connections from any host other than the local computer. If you want to 
configure Sendmail as a server for other clients, you must edit 
/etc/mail/sendmail.mc and change the DAEMON_OPTIONS line to also listen on 
network devices (or comment out this option entirely using the dnl comment 
delimiter). You must then regenerate /etc/mail/sendmail.cf by running the 
following command (as root):

      make -C /etc/mail

      Note that you must have the sendmail-cf package installed for this to 
work.


Ciao,
Gio


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