I been using this website for months you will need big big big brain to use it. I have the best private iptables (firewall rules). You can find public iptables, But i advise you not start sh*t with the ddos community as they will clown your 3 euro if you don't know how to patch methods. This will atleast patch old methods if people use it on your server. i will also provide a tutorial to use a we web-interface for your vpn to manage configs etc...