How the Gcore Anti-DDoS protection works

All onesubnet.com servers benefit from Gcore Anti-DDoS protection, always on and with zero configuration required on your part.

Cause / The problem

Denial-of-service (DDoS) attacks aim to saturate a server’s bandwidth or resources to make it unreachable. Game servers are a frequent target because the IP is public and attacks are cheap to rent.

Solution / How it works

1. Always-on protection. All incoming traffic continuously flows through Gcore’s anycast filtering network, distributed across multiple points of presence (PoPs). No action is needed on your side: protection is enabled by default on every server.
2. Automatic detection. The system analyzes traffic in real time. When an anomaly is detected (volumetric spike, known attack patterns — SYN flood, UDP flood, amplification attacks), traffic is redirected to the filtering platform.
3. Filtering and scrubbing. Malicious packets are dropped at the network edge, within seconds, using mitigation rules adapted to the attack type. Only legitimate traffic reaches your server.
4. Game-aware. Gcore tunes filtering for game protocols (low-latency UDP), which avoids false positives while a legitimate player is in-game.
5. Capacity. Gcore’s infrastructure absorbs attacks of several hundred gigabits per second. You don’t have to worry about the size of the attack.
6. No server-side configuration. You have no firewall to set up and no rule to enable. If you notice abnormal latency during an attack, that’s expected (filtering adds a few ms), but the server stays available.

If a connectivity problem persists, first check the server status (Pelican panel) before suspecting that the protection has been bypassed. The Gcore protection requires no intervention on your side.