Re: Router/Firewall Recommendation

From: Jason Dixon (jason_at_dixongroup.net)
Date: 06/22/04

  • Next message: Chiu, PCM (Peter) : "Book disk on USB memory stick" 
    Date: Mon, 21 Jun 2004 23:04:25 -0400
To: General Red Hat Linux discussion list <redhat-list@redhat.com>

    On Jun 21, 2004, at 10:51 PM, Alejandro Calbazana wrote:

    > I was looking for some recommendations on using a standalone RH
    > machine as a
    > firewall. Right now, I have an older Linksys router which I use as a
    > standalone router for my broadband connection. I was considering
    > placing a
    > firewall behind my router. Other than being overly paranoid, I'd like
    > to do
    > this b/c i like the logging capability of iptables and iptables has
    > much
    > more flexibility as far as rules go. The Linksys router simply routes,
    > forwards, and does rudimentary logging. My questions are:
    >
    > 1. Is the overkill from a home network?

    Not if the Linksys only performs basic NAT/routing. You'd be smart to
    add an advanced filtering device.

    > 2. Should I just use my linux box as a router AND a firewall and ditch
    > the
    > Linksys appliance all together?

    If you're going to use the Linux firewall, the Linksys really is
    unnecessary. All it adds is an extra layer of
    complexity/routing/failure.

    > 3. If there is room for both, how might the router allow traffic to
    > flow to
    > the machine I designate as my firewall?

    You'd end up with 2 layers of NAT translation. Way unnecessary. 

    --
Jason Dixon, RHCE
DixonGroup Consulting
http://www.dixongroup.net
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