How to change Joomla Admin Folder Name or Path ?

Many times people ask me, how you secure your joomla website,specially how to protect your admin side of website.So I think about to change the admin url. By default, every joomla programmer know the default url of admin directory i.e. http://sitename.com/administrator/ . So I want to hide or just don’t want to give direct access to that url, after googling, found that changing the folder name ‘administrator’ to ‘myadmin” & change the , define( ‘JPATH_ADMINISTRATOR’, JPATH_ROOT.DS.’administrator’ ...