[Faizaan]

Hmm. Well, I've been DDoSed alot when I used to own a server. What I did was contact my host, telling them to give me a new IP or to get a refund. If they give you the new IP, you should somehow pass the IP on around the players. If you get a refund, buy a new host. Hopefully you will not get DDoSed again. If you need immediate help: contact your host now.

-Faizaan