title: 404 error when i hosted my site in server
body: <p>Am new to CodeIgniter and I developed a small website using this. My site is working fine in
  <code>localhost</code>. But when I move my website to the web server, the first Welcome controller is working fine, because I got my first login page. When I click my login(<code>Welcome/login</code>). It gives <code>404 error</code>(hosting server 404 page). Even it doesn’t give any validation errors.</p>
  
  <p>I hosted this in to a subdomain(<code>www.subdomain.example.com</code>)
  and I changed base_url, like this domain name. Using <code>HTACCESS</code> file for rewriting url.</p>
  
  <p>I changed the <code>$index_page=“index.php”</code> to <code>$index_page=”“</code>, for removing index.php from URL.
   This working well in localhost. On the server I checked with $index_page then it gives CodeIgniter 404 error page.</p>
  
  <p>The only difference with my localhost is, I hosted it in a subdomain. It may be problem with <code>.htaccess</code>, which looks like this:</p>
  
  <pre><code>&lt;IfModule mod_rewrite.c&gt;
      RewriteEngine On
      RewriteBase /
  
      #Removes access to the system folder by users.
      #Additionally this will allow you to create a System.php controller,
      #previously this would not have been possible.
      #'system' can be replaced if you have renamed your system folder.
      RewriteCond %{REQUEST_URI} ^system.*
      RewriteRule ^(.*)$ /index.php?/$1 [L]
  
      #When your application folder isn't in the system folder
      #This snippet prevents user access to the application folder
      #Submitted by: Fabdrol
      #Rename 'application' to your applications folder name.
      RewriteCond %{REQUEST_URI} ^application.*
      RewriteRule ^(.*)$ /index.php?/$1 [L]
  
      #Checks to see if the user is attempting to access a valid file,
      #such as an image or css document, if this isn't true it sends the
      #request to index.php
      RewriteCond %{REQUEST_FILENAME} !-f
      RewriteCond %{REQUEST_FILENAME} !-d
      RewriteRule ^(.*)$ index.php?/$1 [L]
  &lt;/IfModule&gt;
  
  &lt;IfModule !mod_rewrite.c&gt;
      # If we don't have mod_rewrite installed, all 404's
      # can be sent to index.php, and everything works as normal.
      # Submitted by: ElliotHaughin
  
      ErrorDocument 404 /index.php
  &lt;/IfModule&gt;'
  </code></pre>