HackFix Security: Server Crash & Flood Protection SystemHello everyone, I have developed a comprehensive security solution against "Core Down" (server crashes) and connection-based attacks that have been affecting many servers recently. (I’d also like to thank other developers whose work I referenced). The primary goal of this system is to block abnormal packet traffic and exploit attempts that strain the server, without disrupting the experience of legitimate players.
Key Features of the SystemThe system is built upon 6 main shields: Buffer, Client, Flood, Item, Login, and Packet. You can toggle these features on or off at any time via security_manager.h.
Smart Login Protection: Integrated dynamic IP blocking for failed password attempts and flood attacks on the login screen.
Buffer & Packet Security: Prevents oversized/malformed packets and excessive data transmission designed to crash the server.
Automation (hackfixctrl.py): Use the included Python script to automatically configure BANIP paths and firewall settings without manual effort.
Tested: Experimentally verified and stable.[!IMPORTANT]
NOTE: Please adjust the file paths within hackfixctrl.py and the manager to match your specific server environment.
Updates & Other ProtectionsI have not included "Anti-Cheat" mechanisms (Speed Hack, etc.) in this release because I provided them in detail with their specific limits in my previous post.
However, I have fixed the "knocking down opponents in PvP without hitting" issue found in that previous version. Now, in such cases, a 3-second stun mechanism is triggered instead.
Access Anti-Cheat topic here: [M2HackFIX ServerSide] hack-fix-server-side-the-metin2-cheat-ending-t5991.html Testing and Feedback Test & FeedbackSince no one provided any server test feedback, I created my own test plan and launched the attacks against my own system.
Attack Test Video:Client Test:
la acest mesaj și conținutul se va afișa automat.
