FedoraCore1 Sendmail Iptables question

Adam Voigt adam at kotisprop.com
Thu Mar 18 17:33:29 UTC 2004


Did you edit your /etc/mail/sendmail.mc? Specifically the line:

DAEMON_OPTIONS(`Port=smtp,Addr=127.0.0.1, Name=MTA')

You need to remove the Addr=127.0.0.1 portion, or sendmail will only
listen on localhost.

After you make the change, you need to do a "service sendmail restart".


On Thu, 2004-03-18 at 12:00, Todd wrote:
> Greetings.
> 
> I am setting up a server that will be public IP facing and would like to
> ensure that the only ports accessible to the public are: ssh, http, and
> smtp.
> 
> I have the following rules set for the ACCEPTS:
> 
> ACCEPT     tcp  --  anywhere             anywhere            state NEW tcp
> dpt:smtp
> ACCEPT     tcp  --  anywhere             anywhere            state NEW tcp
> dpt:http
> ACCEPT     tcp  --  anywhere             anywhere            state NEW tcp
> dpt:ssh
> 
> but a nmap scan of the server shows that port 25 is closed:
> 
> 22/tcp open   ssh
> 25/tcp closed smtp
> 80/tcp open   http
> 
> Any assistance would be greatly appreciated.
> 
> Thanks.
> 
> - Todd
-- 

Adam Voigt
adam at kotisprop.com






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