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Date:      Wed, 20 Aug 2008 07:38:55 -0700
From:      Jeremy Chadwick <koitsu@FreeBSD.org>
To:        Leslie Jensen <leslie@eskk.nu>
Cc:        freebsd-pf@freebsd.org
Subject:   Re: port stealth mode?
Message-ID:  <20080820143855.GA40160@eos.sc1.parodius.com>
In-Reply-To: <48AC266D.2030902@eskk.nu>
References:  <48AC266D.2030902@eskk.nu>

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On Wed, Aug 20, 2008 at 04:13:01PM +0200, Leslie Jensen wrote:
> I've done some testing with Steve Gibsons "Shields up"
> https://www.grc.com/x/ne.dll?bh0bkyd2
>
> These tests lists the ports as closed but visible.
>
> Instead the site suggest that one uses stealth so that the ports are not  
> visible from the Internet.
>
> Is there a way to achieve this with PF?

The "block" directive, along with "set block-policy drop" should suffice
for accomplishing this in pf.

-- 
| Jeremy Chadwick                                jdc at parodius.com |
| Parodius Networking                       http://www.parodius.com/ |
| UNIX Systems Administrator                  Mountain View, CA, USA |
| Making life hard for others since 1977.              PGP: 4BD6C0CB |




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