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Hotfix 0.7.0.12 Is Live!
Posted on February 20th, 2019 04:23 AM EST
Hotfix 0.7.0.12 is now live. Tonight's hotfix furthers our push in the war against DDOS attacks. While the attacks keep getting smarter and adapting to our network protocols, we believe we are patching out the last of the holes that allow targeted attacks to effectively bring down servers.
This patch adds a new layer that allows the game process to pass IP addresses to the operating system to implement firewall filtering and free up the Hurtworld main thread from dealing with malicious packets.
Server owners will find a new handle_ddos_ip.sh / handle_ddos_ip.bat in the server builds that will be called with an IP address as a parameter whenever the server process detects excessive data from a specific IP address. It is up to each server owner to configure this script to block the IP permanently / temporarily and will change greatly depending on OS configuration. Another powerful use for this would be calling out to your ISP's hardware firewall API and blocking the IPs from there (I know OVH supports this).
We are currently working on an IPSet/IPTables implementation example for linux servers that we will push out in the next couple days. In the meantime competent server admins should be able to work filtering out.