From: Robert Miller (rmiller@SMUD.ORG)
Date: Wed Dec 10 2003 - 13:47:21 EST
Not sure if it's possible with vanilla sendmail, it may be... but I
wonder if you could do such a thing with TCPWrappers? If you could
start sendmail using TCPWrappers, that would allow you to use the
hosts.allow and hosts.deny files to say which boxes could talk to your
smtp port...
Not sure if it's possible... anyone know if this even sounds feasible?
--rm
-----Original Message-----
From: IBM AIX Discussion List [mailto:aix-l@Princeton.EDU]On Behalf Of
Miller, Dave (I.S.)
Sent: Wednesday, December 10, 2003 10:31 AM
To: aix-l@Princeton.EDU
Subject: Re: Telnet port 25
Thanks for the replies.
Maybe I should ask/approach this way...can I limit telnet to respond
only to certain IP addresses, or sendmail relays for that matter?
thanks
-----Original Message-----
From: Bill Verzal [mailto:BVerzal@KOMATSUNA.COM]
Sent: Wednesday, December 10, 2003 12:22 PM
To: aix-l@Princeton.EDU
Subject: Re: Telnet port 25
smtp runs on port 25. You do not need sendmail running to send mail out
of
a box. Once you stop sendmail, telnet to port 25 will be closed.
BV
--------------------------------------------------------
"If everything is coming your way, then you are in the wrong lane"
Bill Verzal
AIX Administrator, Komatsu America
(847) 970-3726 - direct
(847) 970-4184 - fax
"Miller, Dave
(I.S.)"
<Dave.Miller@BHS.
To
ORG> aix-l@Princeton.EDU
Sent by: IBM AIX
cc
Discussion List
<aix-l@Princeton.
Subject
EDU> Telnet port 25
12/10/2003 11:10
AM
Please respond to
IBM AIX
Discussion List
<aix-l@Princeton.
EDU>
Can someone point me in the write direction as to how I would easily
disallow telnet to port 25, but still allow telnet to port 23?
I.e. I don't want to be able to telnet to port 25 and send mail, but I
still want to run sendmail, and allow telnet... or am I looking at this
wrong? Thanks.
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