Date: Thu, 05 Aug 2004 01:16:19 -0400 From: Forrest Aldrich <forrie@forrie.com> To: freebsd-questions@freebsd.org Subject: Blocking SMTP traffic based upon RBL.... Message-ID: <4111C2A3.1010501@forrie.com>
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There are probably dangerous consequences to doing something like this improperly; however, there is a project out there called PacketBL: http://wiki.duskglow.com/index.php/Packetbl It's for Linux only, unfortunately -- however I like the idea. It interfaces with the packet filtering system and selectively blocks SMTP (port 25, configurable) traffic based upon RBLs etc. I wonder if there is a similar way to accomplish this with FreeBSD/ipfw...
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