Blocking IP's via iptables

I'm having a bit of a problem here, I'm getting fluded with a bunch of crap, causeing massive server load, 10+.

Whenever I add something to the iptables it get's deleted. I've been using the command:

iptables -I INPUT -s IP_ADDRESS_HERE -j DROP

They go away soon after. How do I make them stay in the iptables?

It's a Fedora Core 1 box with Cpanel.

Any help would be appreciated.

Also, when I try to do iptables-save, it seems like it only keep the last IP address that I blocked, and not all of them.

 

 

 

 

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