Enable mod_rewrite on Centos is very simple
find the file
Code:
/etc/httpd/conf/httpd.conf
Find <Directory "/var/www/html">
Change to <Directory "/var/www"> if you are having more domain names in www.
Code:
Change AllowOverride None to AllowOverride All
You need to restart your Apache to see changes. Of course, Mod rewrite is enabled and you can run your friendly urls without any errors
Hope it helps