From owner-freebsd-questions Tue Jan 29 17:59:50 2002 Delivered-To: freebsd-questions@freebsd.org Received: from topaz.mdcc.cx (topaz.mdcc.cx [212.204.230.141]) by hub.freebsd.org (Postfix) with ESMTP id 28E0837B400; Tue, 29 Jan 2002 17:59:47 -0800 (PST) Received: from k7.mavetju.org (topaz.mdcc.cx [212.204.230.141]) by topaz.mdcc.cx (Postfix) with ESMTP id 854FD2B74A; Wed, 30 Jan 2002 02:59:42 +0100 (CET) Received: by k7.mavetju.org (Postfix, from userid 1001) id 0D11A348; Wed, 30 Jan 2002 12:59:38 +1100 (EST) Date: Wed, 30 Jan 2002 12:59:38 +1100 From: Edwin Groothuis To: "Crist J. Clark" Cc: questions@FreeBSD.ORG Subject: Re: ipfw + natd Message-ID: <20020130125938.Y823@k7.mavetju.org> References: <001f01c1a906$b5cb9300$0200a8c0@mdrjr.net> <20020130123005.X823@k7.mavetju.org> <20020129175155.M79208@blossom.cjclark.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.2.5i In-Reply-To: <20020129175155.M79208@blossom.cjclark.org>; from cjc@FreeBSD.ORG on Tue, Jan 29, 2002 at 05:51:55PM -0800 Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG On Tue, Jan 29, 2002 at 05:51:55PM -0800, Crist J. Clark wrote: > On Wed, Jan 30, 2002 at 12:30:05PM +1100, Edwin Groothuis wrote: > > On Tue, Jan 29, 2002 at 06:36:46PM -0200, Mauro Dias wrote: > > > I'm using natd and ipfw to allow my intranet (192.168.0.0/24) to access > > > internet. > > > internet interface: rl2 > > > intranet interface rl1 > > > not using interface: rl0 (hehe) > > > > > > I'm using FreeBSD-4.5RC > > > > > > can someone tell how do i see what users in 192.168.0.0/24 are doing ? > > > something like netstat -M ? > > > > If you add keep-state to your ipfw-rules you will get a line in > > the ipfw -a l output for every tcp connection. > > > > Or try trafshow (don't run it as root, it's leaking descriptors). See > > http://www.mavetju.org/unix/tcpdumpmortals.php how to configure > > your system so normal users can run things like trafshow without > > needing root-access. > > Nothing complicated, one just needs read access to /dev/bpf* to sniff > away. Exactly. How often have users asked their administrator for the root-password because they didn't know this. And how many administrators have given them the root password because they didn't know how to do it properly? Edwin -- Edwin Groothuis | Personal website: http://www.MavEtJu.org edwin@mavetju.org | Interested in MUDs? Visit Fatal Dimensions: ------------------+ http://www.FatalDimensions.org/ To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message