How do I run Node.js on port 80?

Question

My aim is to run Node.js on port 80. This is because I am finding node.js is being blocked from certain networks which do not allow traffic from any other port.

It appears that the best way to do this is by proxying Apache through Node.js. I have tried using node-http-proxy to do this but I have not had any luck.

The code I am using is here:

var util = require('util'),
    http = require('http'),
    httpProxy = require('http-proxy');

httpProxy.createServer(9000, 'localhost').listen(80);

http.createServer(function (req, res) {
  res.writeHead(200, { 'Content-Type': 'text/plain' });
  res.write('request successfully proxied to: ' + req.url + '\n' + JSON.stringify(req.headers, true, 2));
  res.end();
}).listen(9000);

But I keep getting the error "Address in use" for port 80. I must be doing something wrong.

How do I proxy Apache through node.js using node-http-proxy? Will this enable me to run node.js on port 80? And is node-http-proxy the best way to achieve this?

Thank you.

Answer 1

run your app on a high port 8080 or whatev then

sudo iptables -A PREROUTING -t nat -i eth0 -p tcp --dport 80 -j REDIRECT --to-port 8080

If you are not using ngnix or apache