How to Hide Origin IP When a Card Game Server Is Attacked: Contain, Change IP, Encapsulate Access in Three Steps

When the origin IP is exposed, attacks bypass perimeter defenses and hit the server directly, sometimes leading to ISP blackholing. This article presents an operations-driven sequence: first contain the breach with security group whitelisting, then close all leak channels such as hardcoded client IPs, DNS history, and outbound callbacks, then change the public IP and move core nodes into a private network, and finally encapsulate access for long connections and web traffic separately through game shield and high-defense reverse proxy, with a mandatory post-change verification checklist.