How do I save the iptables

Question

I am new to Linux. In CentOS 6.3 I added this rule:

iptables -I INPUT -p udp --dport 9494 -j ACCEPT

Now I am trying to save it:

/sbin/service iptables save It gives me: [FAILED]

I tried to do: /sbin/service iptables stop but it gives me FAILED on unloading modules iptable_filter iptable_filter [FAILED]es

Answer 1

You run:

$ iptables-save > /path/to/file

That will store the current iptables rules in /path/to/file.

Then to re-load the rules:

$ iptables-restore < /path/to/file

Answer 2

OK, I added rules to file /etc/sysconfig/iptables and it worked