gistfile1.js

var sys = require('sys');
var mongo = require('mongodb');

var db = new mongo.Db('nonexistant-db',
                      new mongo.Server('10.20.101.160',
                                       27017, {
                                         auto_reconnect: false
                                       }));

db.open(function(err, db) {
  if (err) {
      throw new Error('Error connecting to database');
  }

  console.log('Done!');
});