From: Sascha Siekmann (sascha.siekmann@scon.de)
Date: Tue Sep 28 2004 - 16:06:54 CEST
Message-ID: <41596FFE.40009@scon.de> Date: Tue, 28 Sep 2004 16:06:54 +0200 From: Sascha Siekmann <sascha.siekmann@scon.de> Subject: Re: [suse-domino] Unable To Bind To Port 6400
Torsten.Marschall@mdk-nordrhein.de wrote:
>
> "Unable to bind to port: Port=6400 errno=98 "Address already in use"
> "SMTP Server Listener Failure - The requested TCP/IP Port is already
> in use on this system."
>
> I always thought that SMTP listens on Port 25 if not told to do
> otherwise.
> When viewing the tasks of the domino server it tells me "SMTP:
> Listening on port 25".
> So what is this Port 6400 all about ? I couldn't really find anything
> about this by googling, except for some Trojan called "TheThing" which
> I can rule out as the new server is running isolated in a testing
> environment as yet.
>
>
You have something listening on port 25. The error message is
misleading. Port 6400 is hex 0x0019 and when you byte swap it it
becomes 0x1900, hence decimal 6400. Credits to
http://www-10.lotus.com/ldd/profile.nsf/publicprofile?openform&person=Ross%20Alexander
for this one.
So your real problem is that you probably have some other SMTP daemon
running. As suggested, try netstat or type in
fuser 25/tcp
which will give you the process ID of the listening services and we will
take it from there.
Regards,
Sascha Siekmann
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