So I'm renting a Game Server from OVH which advertises DDoS protection, however, I do frequently get DDoS attacks despite that fact. I've made a support request with them, but they haven't replied yet. Is there anything else I have to do to get the DDoS protection working or is it just supposed to work from the beginning? I heard something about Firewalls or IPTables earlier, but I'm not sure how to set one up, so if anyone could point me in the direction of a good tutorial, it would be nice. BTW I'm using Linux.