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Old 05-12-2005, 10:05 AM   #1
bhughesiii
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Blocked


I am trying to get a email server up, and as far as the email server goes all is well. I cannot connect through port 25 from the outside though. If I ssh into the server and do a telnet localhost 25, I get connected. If i try to go from the outside and telnet (public ip) 25 I get connection refused unable to open a connection on port 25.

Can anyone help?


Oh yeah, this even happens when iptables is shutdown, when up though it is set to allow smtp
 
Old 05-12-2005, 10:15 AM   #2
fr_laz
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Hi,

is there a WAN, some routers, some firewalls between your server and your client ?
 
Old 05-12-2005, 10:17 AM   #3
Matir
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Perhaps the SMTP server is only set to bind to the loopback interface? Which SMTP server are you running?
 
Old 05-12-2005, 10:18 AM   #4
bhughesiii
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Yes, I gave my server a public address, and trying to connect to it through my gateway/firewall. I can SSH to it, I can ping it, but no connection through port 25
 
Old 05-12-2005, 10:18 AM   #5
bhughesiii
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Quote:
Originally posted by Matir
Perhaps the SMTP server is only set to bind to the loopback interface? Which SMTP server are you running?
I am using postfix, and I have mynetworks setup to allow from our public IP on the gateway
 
Old 05-12-2005, 10:25 AM   #6
fr_laz
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Doesn't your gateway/firewall blocks the packets ?
 
Old 05-12-2005, 10:27 AM   #7
bhughesiii
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The gateway I use to go out, allows everything out and nothing but ssh in. The email server allows only SSH, SMTP, and telnet
 
Old 05-12-2005, 10:45 AM   #8
Matir
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Well, is the mail server BEHIND the gateway?
 
Old 05-12-2005, 10:58 AM   #9
bhughesiii
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Quote:
Originally posted by Matir
Well, is the mail server BEHIND the gateway?
No, the server has it's own public IP address.. on the outside of the gateway.. It uses the gateway address given to me by the ISP
 
Old 05-12-2005, 01:44 PM   #10
Matir
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If the gateway is blocking packets coming in, then how do you expect them to get to the server?
 
  


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