server.js

var util = require('util'),
    http = require('http'),
    argv = require('optimist').argv;

var port = argv.p || argv.port || 80;

http.createServer(function (req, res) {
  console.log(req.method + ' request: ' + req.url);
  res.writeHead(200, {'Content-Type': 'text/plain'});
  res.write('hello, i know nodejitsu.');
  res.end();
}).listen(port);

/* server started */
util.puts('> hello world running on port ' + port);