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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