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Date: Thu, 16 Aug 2007 12:57:02 -0700
From: "Kurt Buff" <kurt.buff@gmail.com>
To: "Eric F Crist" <ecrist@secure-computing.net>
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References: <53A8E90E-86D9-4357-B54F-BEE437D025E5@secure-computing.net>
Cc: Questions User <freebsd-questions@freebsd.org>
Subject: Re: Real-Time traffic monitor?
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On 8/16/07, Eric F Crist <ecrist@secure-computing.net> wrote:
> Hey all,
>
> I've got a fairly heavy-duty machine doing firewalling for my
> network, and the VAST majority of it's processing power is going
> unused.  As such, I'd like to put X on this box, attach a monitor,
> and display a series of real-time traffic graphs.  Does anyone know
> what the best software to use for this would be?

I wouldn't put anything on it that isn't directly related to its mission.

At most, I'd suggest putting net-snmp on it, denying access from the
untrusted side(s), and polling the box with mrtg/cacti/nagios from
another machine.

Better, I think would be to put ntop on another machine and mirror the
port to which the firewall  is attached.