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Date:      Wed, 30 Jan 2002 12:59:38 +1100
From:      Edwin Groothuis <edwin@mavetju.org>
To:        "Crist J. Clark" <cjc@FreeBSD.ORG>
Cc:        questions@FreeBSD.ORG
Subject:   Re: ipfw + natd
Message-ID:  <20020130125938.Y823@k7.mavetju.org>
In-Reply-To: <20020129175155.M79208@blossom.cjclark.org>; from cjc@FreeBSD.ORG on Tue, Jan 29, 2002 at 05:51:55PM -0800
References:  <001f01c1a906$b5cb9300$0200a8c0@mdrjr.net> <20020130123005.X823@k7.mavetju.org> <20020129175155.M79208@blossom.cjclark.org>

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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/

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