node.js - bash starts Node service localhost cannot be accessed

Question

Two node services were successfully started at the same time. The same port and the same 4000 cannot access localhost:4000, but bash can access the port under win10. Thank you.

代言 · Answer

1. Check whether the service starts normally?
2. Check the listening status of the port: netstat -anp|grep 4000

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Successfully started two node services at the same time, the same port, the same 4000

Cannot access localhost:4000, but bash can access the port under win10