L2J Server

Hello,

I don't know if this is the right place for this post, if its wrong I'm sorry feel free to move it.

I've found a firewall script from the old l2jserver forum that secures a bit linux based systems.
The problem is i don't know how to make it executable and execute it. The code is here http://pastebin.com/f4afee5c9 .

Thanks in advance

Copy and past over the command line. Be sure what is doing each line before execute it.

already tried i get errors:

FATAL: Error inserting ip_tables (/lib/modules/2.6.32-21-generic/kernel/net/ipv4/netfilter/ip_tables.ko): Operation not permitted
iptables v1.4.4: can't initialize iptables table `filter': Permission denied (you must be root)
Perhaps iptables or your kernel needs to be upgraded.

Edit: also tried with sudo to have access

Bump. any1?