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Install node.js and mongoDB on Cubietruck

I have installed Cubian OS on my Cubieboard . Then I installed node.js and mongoDB using this tutorial . It seems node.js is working properly. I can start mongod service but I have several problems:

  1. I cannot execute mongo shell: command not found
  2. localhost:27017 (same as http://127.0.0.1:27017/ is unavailabe)
  3. I cannot connect to mongoDB in my node.js code
  4. npm install produce a lots of errors and I can't install required modules using this command (but I still can use nmp install module_name command)

My test node.js code:

var express = require('express');

// Mongoose import
var mongoose = require('mongoose');

var db = mongoose.connection;

db.on('error', console.error);
db.once('open', function() {
  // Create your schemas and models here.
    console.log('Connected');
});


// Mongoose connection to MongoDB (ted/ted is readonly)
mongoose.connect('mongodb://127.0.0.1:27017/test', function (error) {
    if (error) {
        console.log(error);
    }
});

// Mongoose Schema definition
var Schema = mongoose.Schema;
var UserSchema = new Schema({
    first_name: String,
    last_name: String,
    email: String
});

// Mongoose Model definition
var User = mongoose.model('users', UserSchema);

// Bootstrap express
var app = express();

// URLS management

app.get('/', function (req, res) {
    res.send("<a href='/users'>Show Users</a>");
});

app.get('/users', function (req, res) {
    User.find({}, function (err, docs) {
        res.json(docs);
    });
});

app.get('/users/:email', function (req, res) {
    if (req.params.email) {
        User.find({ email: req.params.email }, function (err, docs) {
            res.json(docs);
        });
    }
});

// Start the server
var server = app.listen(3000, function () {

  var host = server.address().address
  var port = server.address().port

  console.log('Example app listening at http://%s:%s', host, port)

});

When I execute sudo node server.js command I get following:

 Example app listening at http://0.0.0.0:3000
[Error: failed to connect to [127.0.0.1:27017]]

As you can see the IP address is incorrect and localhost:3000 (127.0.0.1:3000) is unavailable too.

Does anyone can help me? Thanks!

I've added the following lines to /etc/network/interfaces and after that my web-site became available:

auto lo
iface lo inet loopback

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