Date: Wed, 24 Jul 2002 10:06:34 +0100 From: David Pick <d.m.pick@qmul.ac.uk> To: Christoph Kukulies <kuku@accms33.physik.rwth-aachen.de> Cc: freebsd-security@freebsd.org Subject: Re: port 587 - submission service open, why? Message-ID: <E17XI6M-000Cwh-00@xi.css.qmw.ac.uk> In-Reply-To: Your message of "Wed, 24 Jul 2002 10:51:47 %2B0200." <200207240851.KAA14874@accms33.physik.rwth-aachen.de>
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> I installed 4.6 on my mobile computer gladly noting that > when testing it using nmap ( http://www.insecure.org/) > only ssh, smtp aand another service which was unknown to me until now > was open. It's a variant of SMTP tuned/tunable for accepting messages from MUAs on *initial* submission from a MUA to a MTA. Later versions of "sendmail" automatically listen for this port as well as port 25. > I'm just wondering why on the one hand care is taken to close as much > as possible then on the other hand a comparably unknown and maybe untested > service is opened to the outside. Not unknown, not untested, no extra risk compared with port 25 anyway. -- David Pick To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-security" in the body of the message
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