Date: Fri, 6 Sep 1996 23:40:29 +0930 (CST) From: Peter Childs <pjchilds@imforei.apana.org.au> To: vam@recruiter.on.ca, freebsd-questions@freebsd.org Subject: Re: Firewall to keep out NetBIOS Message-ID: <199609061410.XAA10009@al.imforei.apana.org.au>
next in thread | raw e-mail | index | archive | help
In article <Pine.BSF.3.91.960905161025.4302B-100000@recruiter.on.ca> you wrote: : I'm trying to set up freebsd as a firewall to keep people on the internet : from accessing MS-Windows shared directories. [cut] : I want to keep out TCP and UDP traffic from ports 137, 138 and 139, so I : started with something like this: : /sbin/ipfw addf deny tcp from any to $1 137 : /sbin/ipfw addf deny tcp from $1 137 to any [cut] I'd probably just block everything going in and out on 137->139 on your slip link with something simple like... ipfw addf deny tcp from any to any 137:139 via sl0 I'm not to sure on the syntax, because it has changed a fair bit between the releases (2.1 -> 2.1-stables -> 2.1.5-release -> 2.1.5-stable ) Peter -- Peter Childs --- http://www.imforei.apana.org.au/~pjchilds Finger pjchilds@al.imforei.apana.org.au for public PGP key Drag me, drop me, treat me like an object!
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?199609061410.XAA10009>