How to start NODE js on virtual sub domain, I am usgin Apache web server?

Why would you use apache web server and node.js?

You can create a very simple web server using node.js

const http = require('http');

http.createServer((request, response) => {
  const { headers, method, url } = request;
  let body = [];
  request.on('error', (err) => {
    console.error(err);
  }).on('data', (chunk) => {
    body.push(chunk);
  }).on('end', () => {
    body = Buffer.concat(body).toString();
    // At this point, we have the headers, method, url and body, and can now
    // do whatever we need to in order to respond to this request.
  });
}).listen(8080); // Activates this server, listening on port 8080.

• taken from https://nodejs.org/en/docs/guides/anatomy-of-an-http-transaction/

If you’re thinking on using Node.js there are plenty of framework to use, such as Express, Hapi, Resitfy, Fastify etc…

hope that’s help.