5 messages in net.sourceforge.lists.courier-usersRe: [courier-users] esmtp listen only...
FromSent OnAttachments
André da VeigaMay 30, 2005 5:08 am 
Binand SethumadhavanMay 30, 2005 5:37 am 
Phillip HutchingsMay 30, 2005 1:17 pm 
Gordon MessmerMay 30, 2005 2:00 pm 
Phillip HutchingsMay 30, 2005 11:08 pm 
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Subject:Re: [courier-users] esmtp listen only localhostActions...
From:Gordon Messmer (yiny@eburg.com)
Date:May 30, 2005 2:00:15 pm
List:net.sourceforge.lists.courier-users

On May 30, 2005, at 1:15 PM, Phillip Hutchings wrote:

Proto Recv-Q Send-Q Local Address Foreign Address State <...> tcp 0 0 127.0.0.1:25 0.0.0.0:* LISTEN <...>

This tells you that the courier mail server on 127.0.0.1:25 is listening for connections on 0.0.0.0/0:25, ie all addresses.

No, André was correct. If the "Local Address" isn't 0.0.0.0, then it's the address of a local interface. When it's the address of a local interface, the kernel will only accept connections from that interface. In this case, his sendmail server is listening on the loopback device, only.