From: Rob Laidlaw (laidlaw@consecro.com)
Date: Wed Dec 22 2004 - 20:42:12 GMT-3
Depending on the version, checkpoint usually runs its own smtp security
server which basically turns your firewall into a store and forward mail
server.. You can turn this "feature" off. Check out www.phoneboy.com for
more info on doing that. Checkpoint NG AI has security services for telnet,
smtp, http and a few others I believe. If you don't want to mess with the
checkpoint, you can setup the banner on the checkpoint so it displays
whatever message you want. This can also be found on phoneboys site. GL
-Rob
----- Original Message -----
From: "Hans None" <acsyao@hotmail.com>
To: <ccielab@groupstudy.com>
Sent: Wednesday, December 22, 2004 5:29 PM
Subject: checkpoint blocking smtp banners
All,
Did anyone have the experience that checkpoint firewall did not pass through
smtp banners?
I tried to telnet port 25 from outside the checkpoint firewall to an smtp
server, I do get port open message, but I can not get the banners.
I checked the firewall log, port 25 communication got permitted.
Any hints?
Thanks,
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