Can GitHub Actions be used to detect and mitigate DDoS attacks against a Minecraft server?

Yes, GitHub Actions can be part of a DDoS mitigation strategy. You could create an action that monitors server logs for unusual traffic patterns (e.g., a sudden spike in connections from a specific IP range). Upon detection, the action could trigger a script to block those IPs using a firewall or DDoS protection service. However, this requires significant setup and monitoring.