Protecting Your Server from DDoS Attacks

In gaming, DDoS attacks are a matter of "when", not "if".

Layer 3/4 vs Layer 7

• L3/L4 (Volumetric): Saturate bandwidth. You need a provider with hardware mitigation (OVH Game, Path.net).
• L7 (Application): Attack the Minecraft/FiveM protocol. Here you need smart proxies like TCPShield or CosmicGuard.

Never Expose Your Real IP

Always use a proxy or tunnel. If your backend IP is discovered, no firewall can save you.

Firewall Configuration

Use iptables or ufw to whitelist only your proxy IPs. Block everything else.

Conclusion

Protection costs money, but downtime costs more in terms of reputation.