ssh tunnel Error: listen EADDRINUSE: address already in use 127.0.0.1:27017 code example

Example 1: listen EADDRINUSE: address already in use 127.0.0.1:8000

sudo lsof -i :3000

Example 2: listen EADDRINUSE: address already in use 127.0.0.1:8000

kill -9 {PID}