How to accept requests on different server ports, then redirect?

Question

Node.js

It is necessary that for each client a port on the server is allocated (automatically). Which will receive POST requests. Then redirect them to the NodeJS instance. Is it possible to implement this, and how?

Answer 1

meee how it "was allocated automatically", more precisely what method?? write in more detail what you want.
Alternatively, the main control protocol hangs on a separate port, which assigns ports through which the rest of the data exchange is performed (as in ftp or rpc) or something else ??
so-and-so the chief that assigns a port and sends its number to the client, and must open it on the server and forward it where it needs to be ...