Hello, i want to know can I add proxy ip because i have one main server ip but unfortunately because of heavy ddos on main ip i block the all ips and create a second proxy ip so players can join through from my second proxy ip.

Yeah, I've done something similar before when facing heavy DDoS attacks. Setting up a proxy IP is a good way to redirect traffic and protect your main server. Just make sure the proxy is properly configured to forward connections to the main server. I also found using additional DDoS protection services helped a lot with mitigating the attacks. You'll want to tweak your firewall settings to make sure everything’s secure on both sides of the connection. It definitely made a big difference in keeping everything running smoothly when the attacks hit.