[60146] in North American Network Operators' Group
Re: Blocking port 135?
daemon@ATHENA.MIT.EDU (Bruce Pinsky)
Fri Aug 1 15:34:34 2003
Date: Fri, 01 Aug 2003 12:30:50 -0700
From: Bruce Pinsky <bep@whack.org>
Reply-To: bep@whack.org
To: Bob German <bobgerman@irides.com>
Cc: nanog@merit.edu
In-Reply-To: <00f801c3585d$a06bd490$2001a8c0@potomacdomain.com>
Errors-To: owner-nanog-outgoing@merit.edu
Bob German wrote:
>
> Absolutely. All of the NetBIOS ports: 135, 137, 138, 139, 445.
>
And filtering 445 in the outbound direction to prevent attacks from the inside
out is probably prudent as well.
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bep