Setting ExpressJS server timeout using best practices

app.js

var express = require('express'),
    http = require('http'),
    app = express();

var server = http.createServer(app);

var timeout = 0;

server.setTimeout(timeout, function() {
    server.listen(app.get('port'), function() {
        console.log("Express server listening on port %d in %s mode", app.get('port'), app.get('env'));
    });
});

What's the best practice for getting this to stay alive. Execution finishes before the server.listen process gets kicked off.