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Accepted Answer
The previous accepted answer included a simple configuration using HTTP. I’ve added on this repository (https://github.com/FranciscoKnebel/nginx-reverseproxy) a configuration using HTTP2, which also includes a short instruction set on how to setup SSL with Let’s Encrypt.
Using NGINX, please take a look at the guide below and search for the heading “Set Up Reverse Proxy Server”, which will provide you with exactly what you need to setup multiple domains using NGINX, which will proxy requests to your NodeJS application.
Essentially NGINX will handle the initial request on Port 80 and then proxy it over to the port used by your NodeJS application.
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