
What to do when a VPS IP is blocked: Emergency response and long-term anti-blocking strategies
IP blocks are a common issue for proxy nodes, and I’ve dealt with it many times. This article outlines the complete troubleshooting process. Step 1: Confirm If It’s an IP Block or Something Else When you can’t connect to a node, first rule out non-blocking causes: # Test IP connectivity from mainland China (use mobile hotspot to rule out local network issues) ping your_VPS_IP # Test if the port is open nc -z -w5 your_VPS_IP 443 && echo "open" || echo "blocked" Common confusion cases: ...

