How to reach the server?

Question

JavaScript

I got acquainted with the node quite recently and after php everything goes around, so don't scold me.
I start the server:

[email protected]: sudo nodejs server.js
Server running at http://localhost:8080/

Server code:

const http = require('http');

const hostname = 'localhost';
const port = 8080;

const server = http.createServer((req, res) => {
  res.statusCode = 200;
  res.setHeader('Content-Type', 'text/plain');
  res.end('Hello World\n');
});

server.listen(port, hostname, () => {
  console.log(`Server running at http://${hostname}:${port}/`);
});

And it is logical that the server was launched locally:

[email protected]: curl localhost:8080
Hello World

When changing the hostname to a domain, the console outputs:
Server running at http://moidomen.com:8080/
Only when accessing moidomen.com:8080/, the browser displays ERR_CONNECTION_TIMED_OUT after a couple of minutes of loading.
What am I doing wrong? :)

Answer 1

hostname server.listen should be IPv4 or IPv6 string
exception 'localhost' - alias for '::1'
callback most likely gets an error with the 1st argument, but you don't process
it if you don't specify hostname or pass '0.0.0.0' to it ' then the port will listen on all network devices

Answer 2

Domain Exists? dns or hosts in os know about it?