how to put nodejs and apache in the same port 80

Question

I have to put nodejs in port 80, but apache is already using it. How can I put both (nodejs and apache) on the same port 80? I need it because in my university all the ports

Answer 1

I usually use haproxy as the front-end in situations like that and have that proxy to the appropriate backend server. (Though making your node.js process a proxy server is a valid approach too depending on your needs).