Thread:Project:Support desk/MediaWiki Start page doesn't load

I installed mediawiki 1.21.2 on RHEL 6.4, with PHP 5.3 and Mysql 5.1.69. The URL is: http://134.133.96.200/. The problem is that when I go to the site I get Index of / It lists all of the directories Index of / Name Last modified Size Description

COPYING 03-Sep-2013 14:56 17K CREDITS 03-Sep-2013 14:56 3.8K FAQ 03-Sep-2013 14:56 76 HISTORY 03-Sep-2013 14:56 568K INSTALL 03-Sep-2013 14:56 3.5K RELEASE-NOTES-1.21 03-Sep-2013 14:56 23K StartProfiler.sample 03-Sep-2013 14:56 405 etc.

Instead of the start page:

My httpd.conf file: