Dumb Newbie

[Roger Beever]

On Sat, 2004-02-07 at 20:37, Pedro Fernandes Macedo wrote:
> Jwp wrote:
> 
> >Install and set-up was a breeze.  I even got the Apache server and Proftpd
> >installed and running with minimal effort.  (I did however attempt an
> >install of Pureftp and the Gui front end (I forget the name now) which did
> >not go all that great, once I installed the gui I was unable to find out how
> >to launch it?? But now that I have Proftpd up and running I would like to
> >remove Pureftpd and the gui from my system, how would I do this?
> >  
> >
> if you installed Pureftpd and gui using rpm packages , it's only a 
> matter of running rpm -e packagename .
> 
> >A couple hours later and I finally managed to get a response from the telnet
> >connection both through {# telnet localhost 25} as well as { telnet LAN IP
> >25} from another machine on my home network.  However when I tried {telnet
> >mydomain.com 25} from another machine on the network I received a connection
> >refused.  Please excuse my ignorance but, is this working as it should?
> >Refusing outside access to my smtp server or is this an indication that my
> >ISP is filtering traffic to port 25?  Also now when I send mail to
> >usr at mydomain.com it doesn't get returned to the sender but it also hasn't
> >shown up  in the usr inbox either?   Is this a sign that my ISP is working
> >against me?   Do you all know of a way I can tell if my ISP is the problem?
> >
> >If so can I set up the MX record to send mail to port other than 25 say
> >10001 and then forward port 10001 through my router to port 25 on the linux
> >box?
> >
> > 
> >  
> >
> First , you have to ensure that mydomain.com is pointing to the machine 
> running postfix. If it does , and a telnet mydomain.com 25 fails , 
> probably your ISP is blocking you. If telnet LAN IP 25 works , it really 
> is the ISP.. You can try to convince them to open port 25 , but it's 
> very though...
It sounds like you have a router involved between the internet and your
LAN. 
Is the router sending port 25 to the right machine.
Also if not set up correctly your second machine could be looking for
DNS on the internet and then trying to route out and back in again.
If the router is not pointing to the right machine ....
It could fail even if it is.
You should be able to set the domain name of the mail machine to point
to the IP address of that machine on the other machine.
I think it's hosts in the network setup.
Regards Roger