Hi friends,
I have been trying to set up a firewall using IPTABLES as per the method described in the following link -
http://www.howtoforge.net/custom_iptables_firewall
However, I think that the method described is RedHat specific, or atleast it requires some modifications to be adopted for Slackware. For example the firewall.iptables script must be rc.firewall.iptables located in /etc/ instead of /etc/init.d/, (I hope I am not wrong).
However, chkconfig is not found on my installation of Slackware 10.1. I have been trying to locate the package without any success.
Besides after having followed the procedure described in the link mentioned supra, when I do -
$ sudo /etc/rc.firewall.iptables start
I get the following rather lengthy output on my terminal and the firewall prevents all access to internet. Here is the output -
Being a total newbie in this regards, I am unable to make either head or tail of this.
When I google for "iptables: Unknown error 4294967295" I found a site that suggested that I recompile the kernel with the parameter CONFIG_IP_NF_TARGET_NETMAP=y in the relevant .config.
However the error message fails to go away even after I recompiled the kernel as suggested.
I hope somebody out there can help me out.

Slackware looks for a firewall scrift in /etc/rc.d/rc.firewall. A good starter firewall for a typical desktop machine is Brian Hatch's 10 Minute firewall. You can find the script here http://www.hackinglinuxexposed.com/a.../20030709.html

Make the script executable with and then restart iptables with That's it.

dennisk

Another way to create a rc.firewall script is to open http://www.slackware.com/~alien/efg/ where you find the "Easy firewall Generator" slightly modified so that the generated script works with Slackware.
Just answer a few basic questions about your server setup, and the script will be generated - you can copy and paste it into a file called /etc/rc.d/rc.firewall (this specific filename and none other).
If you do then the Slackware init scripts will automatically run it when your computer boots.

Eric

also, make sure to 'chmod +x /etc/rc.d/rc.ip_forward' if your firewall will also be serving as a router for other computers on the local network.

regards,
...drkstr

Thanks to your prompt replies, I have now got a working firewall. :-)

thank you guys i got it working too....good thread