DDos Protection on dedicated server

Hello i have dedicated server for hosting one of the game and using some tools people takes the ip address and makes the Ddos now how to protect dedicared server from cloudflare i bought one of the ddos protection but dont know how cloudflare connect with my dedicated server and protect the server

Is the game server using HTTP/S over port 80 or 443?

port 80 and 30120

Cloudflare can protect website traffic on Port 80, but does not proxy port 30120 for anything unless you’re on an Enterprise Plan using Spectrum.

ok so for me its useless i cant save the dedicated server no pro thx