Node Error on AWS Ubuntu instance from remote browser

Question

I have an Amazon EC2 instance, Ubuntu. Here's my node example:

var express = require('express');
var app = express();
app.get('/', function(req, res){
  res.send('Hello Express');
});
app.listen(8080, 'http://ec2-xx-xx-xx-xx.us-west-x.compute.amazonaws.com');

The xx's are my actual address.

I start node in SSH, all is well.

I go to a browser on my laptop visit http://ec2-xx-xx-xx-xx.us-west-x.compute.amazonaws.com Node errors out (visiting same domain:8080 errors out too):

events.js:72
        throw er; // Unhandled 'error' event
              ^
Error: getaddrinfo ENOTFOUND
    at errnoException (dns.js:37:11)
    at Object.onanswer [as oncomplete] (dns.js:124:16)

I do have an inbound rule for HTTP on 80 setup on this instance.

Now there's no error, node continues to listen, but browser just says couldn't connect to .... — Tutan Ramen
– Tutan Ramen, Commented Mar 15, 2014 at 7:04
Do you visit http://ec2-xx-xx-xx-xx.us-west-x.compute.amazonaws.com:8080? — bnuhero
– bnuhero, Commented Mar 15, 2014 at 7:17

Mukesh Soni · Accepted Answer · 2014-03-15 07:23:46Z

1

You are listening on port 8080 but have inbound rule for port 80. Add a new rule on AWS EC2 console for port 8080.

Also, as suggested, just do app.listen(8080)

If you want the server to run on port 80, do app.listen(80). But you will have to run the process as super user. So sudo node app.js

answered Mar 15, 2014 at 7:23

Mukesh Soni

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Tutan Ramen Over a year ago

After correcting the other security group, I am doing app.listen(8080) instead now.

Tutan Ramen · Accepted Answer · 2014-03-15 16:50:18Z

0

Thanks for trying, actually, I solved the problem.

I have two instances and they are in a different order than the order of my security groups for those instances...I setup a rule on port 80 for the other security group (the correct one) and it works now.

answered Mar 15, 2014 at 16:50

Tutan Ramen

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