[SOLVED] Iptables not working

[srnerkar]

hello everybody....
I am using RedHat 9. I want to build firewalls using IPTABLES... for writing the rules i have to create /etc/sysconfig/iptables file which is not initially present. and i had choosen the option "no firewalls" while installation.
So my question is that " Where should I write iptables rules so that those would get reflected in file '/etc/sysconfig/iptables'"?????

Waitting for quick reply..............Best regards.....

[crow2icedearth]

write a script then chmod it to make it X. you should be able to have the iptable script anywhere as long as it its called up during boot. i havnt used redhat since version 5.0 . so i have no idea man

[yellowdog]

so how do you make X on boot up? on your .login?
or in your /etc/*?

[Sepero]

To make the script executable, type:
chmod +x filename

Then you will need to put it as a startup file. I don't know where they are on redhat, though.

[serz]

I think that they need to be in /etc/sysconfig/iptables. Also, you'd need to add iptables to the runlevel that you're using so it starts the service on boot time, you do this by doing "chkconfig --add iptables", as root.

[Jinx]

Redhat/Fedora actually runs IPTABLES as a startup service. One of the service options is to "save" the current state of your Iptables firewall rules into the script that is read when the service starts.

Generally, you create a script as mentioned above. You run the script manually until you're happy that all the rules are working. Once you're happy with the script, you run it manually( ./script.sh ), then run the "service iptables save" command. This saves all of the Iptables rules currently running into a file (think it might even be /etc/sysconfig/iptables).

When your computer boots again, it should start the iptables service and run through the saved rules.

Hope that made some sort of sense.

Cya round
Jinx

[srnerkar]

Thanks Everyone there,


I made it run finally....
Thanks for ur valuable time..................

[STORMPROOF]

Couldn't he put the script in his rc.local and it would run on boot up as well.

I remember my times of using redhat 9 that the rc.local was similar to the startup folder in windows.

Correct me if I am wrong.