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Date: Mon, 9 Sep 1996 09:29:12 -0400 (EDT)
From: Vic Metcalfe <vam@recruiter.on.ca>
To: "Alan B. Evans" <aevans@kaiwan009.kaiwan.com>
cc: freebsd-questions@freebsd.org
Subject: Re: Firewall to keep out NetBIOS
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On Sun, 8 Sep 1996, Alan B. Evans wrote:

> To stop NetBIOS stuff from coming in or going out :
> 
>    /sbin/ipfw addf deny udp from any to $1 137
>    /sbin/ipfw addf deny udp from $1 137 to any
>    /sbin/ipfw addf deny udp from any to $1 138
>    /sbin/ipfw addf deny udp from $1 138 to any
>    /sbin/ipfw addf deny tcp from any to $1 139
>    /sbin/ipfw addf deny tcp from $1 139 to any

Thanks.  Your syntax matches my ipfw.  Its a great relief to have those 
ports blocked off from the internet.  Now if I can just feel a little 
better about the security on the firewall system I'd really be happy. ;)

Thanks a lot,
  Vic.