Moving the configuration.php from your root of your Joomla installation makes no sense at all if your website or server is insufficiently protected.
Moving the file only prevents the viewing of the Joomla configuration file by the casual observer. It offers no protection if root access can be been gained to your domain in some fashion, nor does it prevent root access to your domain that is the result of security compromises in Joomla, from 3rd party extensions, or similar insecurities from access gained through badly configured/protected remote or local servers."
It is generally accepted by the security moderators as no longer relevant and provides no additional or very minimal additional security to a website.
Please refer to the following alternative(s) which are available here: