title: codeigniter admin panel setup how to implement this
body: <p>I am new to codeigniter frame work. I have installed CodeIgniter 2.1.4 version. I set up the application and system path in my local wamp server. The front end opens fine. 
  But when i try to open the admin <code>i.e http://siteurl/CodeIgniter_2.1.4/admin</code></p>
  
  <p>it shows as 404 not found. In application >> controllers >> admin.php is found (Hope this is for admin panel) </p>
  
  <p>Then why it shows as 404 not found. Shall i made any setup for admin url?  Please help me. Thanks</p>