node.js server not responding

Question

i am trying this simple demo off of the node.js home page:

var http = require('http');
http.createServer(function (req, res) {
res.writeHead(200, {'Content-Type': 'text/plain'});
res.end('Hello World\n');
}).listen(1337, '127.0.0.1');
console.log('Server running at http://127.0.0.1:1337/');

i have opened the port on amazon ec2 (1337) in its security group.

[root@domU-12-31-38-01-8A-8D servers]# /usr/local/bin/node nodeexample.js
Server running at http://127.0.0.1:1337/

i get nothing back but the typical server is not responding. please help this noob out danke

Try 127.0.0.1 or localhost (on the same machine, of course). — jonvuri
– jonvuri, Commented Nov 17, 2012 at 15:30

Joachim Isaksson · Accepted Answer · 2012-11-17 15:49:08Z

10

You're listening to 127.0.0.1 which makes node listen only to the loopback interface and only lets it be be reached from localhost itself.

If you listen to 0.0.0.0 instead, you will listen to all the machine's network interfaces and lets you be reachable over the Internet on any public IP the machine is using. This is probably what you want.

answered Nov 17, 2012 at 15:49

Joachim Isaksson

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1 Comment

film42 Over a year ago

Up voted because this problem exists beyond the scope of a node app. This is a really important principle to remember!

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