I would like some help/advice on setting up a linux firewall to protect my home network. Currently I am connected to the internet via a cable modem and I have 4 clients that connect to the internet via a linksys router. The router has wireless capabilities which 3 of the computers NEED.
Basically, I would like to have a firewall at the border of my network so that all traffic must pass through it to get to the outside world.
I am by no means a network admin so I don't know exactly the best way to do this, but I would assume that it should go something like this:
CABLE MODEM --> LINUX FIREWALL --> LINKSYS ROUTER --> CLIENTS
Pretty simple in theory I guess and I would assume that this is quite common.
How (in as much detail as you can) would I go about doing this? I know I will need 2 NICs in the firewall box (one for the external net and one for the internal) and also that the firewall will need to act as a router. At least this is what I have been told. After those facts, I really don't know where to start.
I am not a beginner to linux, but I am not an expert
I'm still learning alot and would appreciate any help that can be provided to me.
Before you tell me to RTFM or google for the answer, I have! I found a few sites that described how to setup a firewall, but none of theme seemed to have the same hardware configuration that I do.
So I figured that I would ask before I go and screw something up.
