Make sure you have bind installed and two ethernet cards installed.
Give the lan ethernet card a static IP such as 192.168.0.1
Use the firestarter package (www.fs-security.com).
http://www.fs-security.com/
Run the wizard (5 screens) http://www.fs-security.com/pics/wizard3.png
You're done!
If you are curious about how to do this yourself, check /etc/
firestarter there is a "firewall" config file that shows every step the
program did to enable forwarding, etc.
If you are generally happy with the program, you can add in custom
scripts in the user-pre file- they load before firestarters other rules
and take precendence.
If you hate the program, study what options it passes under the config
file.
On 03/30/2005 07:21:37 AM, Johnny Hughes wrote:
On Wed, 2005-03-30 at 14:10 +0100, Joao Medeiros wrote:
> I've read a number of articles, googled the web for a few months
and
> now attempting at turning my CentOS box into a gateway for the
third
> time. Configured my dhcpd.conf and other related files and all
seems
> to be working, I can have my M$ desktop leasing an ip address and
all.
>
> The problem is when I want to go out to the internet I keep on
getting
> the Request Timed out error.
>
> I'm pretty sure I've followed the manuals to the letter. The
hardware
> is working fine.
>
> Any clues or pointers would be very much appreciated.
>
> TIA,
> Joao
You need to do ip-masquerading to pass traffic thru a linux box as a
gateway. That requires 2 NICs and an iptables script which does
masquerading
I use this script to setup that kind of box:
http://ldp.hughesjr.com/HOWTO/IP-Masquerade-HOWTO/stronger-firewall-examples.html#RC.FIREWALL-2.4.X-STRONGER
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