Tutorial
Advanced Server
How to protect your MU Online server against DDoS
DDoS attacks take down MU servers. See how to mitigate with network protection, anti-DDoS hosting and good practices.
Popular MU Online servers become targets of DDoS — attacks that overload the network to take the server down. Protection is done in layers.
Nota: No protection is 100%, but combining anti-DDoS hosting + good practices drastically reduces the impact.
Protection layers
- Anti-DDoS hosting: VPS/dedicated with mitigation at the network edge;
- Hide the real IP: use a proxy/filter so the game doesn't expose the host IP;
- Firewall: open only the necessary ports;
- Rate limiting and rules against abusive connections;
- Response plan: know what to do during an attack.
Atenção: The biggest flaw is exposing the server's real IP. Once leaked, the attacker targets it directly. Use layers that hide/protect the game IP.
Good practices
| Practice | Benefit |
|---|---|
| Hosting with mitigation | Absorbs large attacks |
| Protected game IP | Makes the target harder to hit |
| Minimal open ports | Reduces surface |
| Monitoring | Detects attacks early |
Dica: For growing servers, investing in hosting with dedicated anti-DDoS protection usually pays for itself — an offline server loses players fast.
During an attack
- Trigger the hosting's mitigation;
- Don't expose logs/IPs publicly;
- Communicate with the community (Discord) transparently;
- After the attack, review what was exposed and reinforce.
See also protect the server (anti-hack) and configure the server network.
Perguntas frequentes
What is a DDoS attack?
It's a deliberate overload: many requests/traffic are sent to the server to exhaust its resources and take it down. It's common on busy MU servers, used by rivals or cheaters.
How do I protect against DDoS?
Use hosting with anti-DDoS protection, hide the server's real IP (proxy/filter), open only the necessary ports and have a response plan. No solution is 100%, but layers greatly reduce the impact.