title: Unable to open jupyter notebook in localhost in ubuntu
body: <p>I installed jupyter notebook and ran the command </p>
  
  <pre><code>$jupyter notebook
  </code></pre>
  
  <p>and it gave a message as follows</p>
  
  <pre><code>[I 23:54:40.063 NotebookApp] Serving notebooks from local directory: /home/kv
  [I 23:54:40.063 NotebookApp] 0 active kernels 
  [I 23:54:40.063 NotebookApp] The Jupyter Notebook is running at: http://localhost:2323/
  [I 23:54:40.063 NotebookApp] Use Control-C to stop this server and shut down all kernels (twice to skip confirmation).
  Created new window in existing browser session.
  </code></pre>
  
  <p>but when I go to the <code>localhost:2323</code></p>
  
  <p>I get the error message stating...</p>
  
  <pre><code>503 Service Unavailable
  
  Failed to connect to server localhost
  </code></pre>
  
  <p>How do I resolve this and get my jupyter notebook running ?</p>