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Date:      Tue, 13 Feb 2001 11:14:05 -0500
From:      "Eric Sproul" <esproul@cstone.net>
To:        "Ragnar Beer" <rbeer@uni-goettingen.de>
Cc:        freebsd-security@FreeBSD.ORG
Subject:   Re: port 587 - submission
Message-ID:  <3A895D4D.D76ACBF7@cstone.net>
References:  <p04330107b6af0b27a34f@[134.76.136.114]>

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Ragnar Beer wrote:
> 
> Howdy!
> 
> In the process of closing all the open ports that I really don't need I found a port 587 listed as service 'submission' by nmap. Does anyone know what kind of service that is? And is there a way to find out which process is listening on a given port (so that I can kill it)?

587 is for SMTP "submissions" meaning new messages (from users) being
injected into a server, versus relayed mail from other 'net mail
servers, which would use port 25.  There's an RFC for it, but I don't
know of any MUAs that implement it.

Eric

-- 
Eric Sproul, Systems Administrator
Cornerstone Networks Inc. (http://www.cstone.net)
-------------------------------------------------
ZenCrafters: Total Enlightenment in about an hour.


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