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My port related problems

How to find and kill the process running on a port on Ubuntu ?​

sudo kill -9 `sudo lsof -t -i:9001`

How to find the process running on a port on Windows 11 using PowerShell ?​

NETSTAT is a command that shows info about the active TCP/IP network connections. It accepts several options. In this case, we will use:

-n: Displays addresses and port numbers in numerical form. -o: Displays the owning process ID associated with each connection. -a: Displays all connections and listening ports; -p: Filter for a specific protocol (TCP or UDP)

netstat -ano | findstr :<PORT>

OR

netstat -noa -p TCP

Get PID that is using the port. Then use this command.

taskkill /PID 19160 /F