Date: Wed, 24 Jul 2002 19:38:16 +0300 From: "Serbanica Ionut" <ionut.serbanica@braila.astral.ro> To: "Christoph Kukulies" <kuku@accms33.physik.rwth-aachen.de> Cc: <freebsd-security@FreeBSD.ORG> Subject: Re: port 587 - submission service open, why? Message-ID: <009601c23330$83317ae0$a51b69c2@amnesiac.ro> References: <E17XI6M-000Cwh-00@xi.css.qmw.ac.uk>
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----- Original Message ----- From: "David Pick" <d.m.pick@qmul.ac.uk> To: "Christoph Kukulies" <kuku@accms33.physik.rwth-aachen.de> Cc: <freebsd-security@FreeBSD.ORG> Sent: Wednesday, July 24, 2002 12:06 PM Subject: Re: port 587 - submission service open, why? > > > 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. > Jeap. Is true. Sendmail.cf: # SMTP daemon options O DaemonPortOptions=Name=MTA O DaemonPortOptions=Port=587, Name=MSA, M=E If you don't want him on, just coment the line and restart sendmail. > > 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 > > Cheers, > > To Unsubscribe: send mail to majordomo@FreeBSD.org > with "unsubscribe freebsd-security" in the body of the message > To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-security" in the body of the message
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