How can I change index.php to index1.php in joomla?

I want to change inde开发者_如何转开发x.php to index1.php in joomla eg : Now it is www.domain.com/index.php?option=com_content..... I want change to :

www.domain.com/index1.php?option=com_content......... 

In Joomla, index.php is the starting point for every single "page" that can be displayed by the CMS. Trying to change that would require extensive changes to the Joomla core. I would highly recommend not doing that, you will regret it. You have a couple of options -

1. Use index.html or maybe default.php for the other info you want. You can change the order that the web server uses the default file so that one of those comes up before index.php

2. Put Joomla in a subdirectory