Do you have a problem similar to the following case?

We've got a fresh CentOS box and we need to enable nice urls / permalinks. We're running Apache with mod_rewrite installed but I'm aware I need edit a few config files to get the basics up and running.

What are the steps and files that need to be changed in order to get it up and running?

Check and change your AllowOverride value

First, open/edit httpd.confwhich should be located on /etc/httpd/conf/httpd.conf
Find AllowOverride None and replace/change them to AllowOverride All
Finally, restart your Apache to take effect