title: mongoDB test error
body: <p>I came to know about mongoDB and looked for test.So I made it install and then for test when I used command mongo on terminal it showed an error like this</p>
  
  <pre><code>MongoDB shell version: 1.8.2
  connecting to: test
  Sun Jul 31 01:06:07 Error: couldn't connect to server 127.0.0.1 shell/mongo.js:79
  exception: connect failed
  </code></pre>
  
  <p>So can someone tell me what is the problem.I am using ubuntu 11.04.For installation instruction I had used <a href="http://bradylove.com/2011/06/06/installing-mongodb-1-8-1-on-ubuntu-11-04" rel="noreferrer">this</a> site.I am newbie to this mongoDB so please helpe me.Any help will be highly appreciable.</p>