, which allows a device to communicate with itself without sending data over an external network. This "loopback" mechanism is critical for developers to test applications in an isolated, secure environment before deploying them to the public internet. The Role of Port 11501 In networking, a acts as a specific "door" for data. While common ports like
When starting your server, specify a different port: localhost11501
Build a local TCP server on port 11501 for inter-process communication (IPC) between Electron or Node.js apps. , which allows a device to communicate with
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By default, localhost is not routable from external machines. Use your LAN IP (e.g., 192.168.1.10:11501 ) if you bind to 0.0.0.0 . localhost11501