With an .htaccess file, you can specify how the server which addresses the requests to your web sites should act a number of cases. This is a text file with directives that are carried out when an individual tries to open your website and what happens next will depend on the content of the file. For example, you may block a particular IP address from opening the Internet site, therefore the server will decline the visitor’s request, or you can redirect your domain name to another URL, so the server will direct the visitor to the new web address. You can also use tailor-made error pages or preserve any part of your site with a password, if you place an .htaccess file inside the correct folder. Many popular script-driven applications, such as Drupal™, Joomla™ and WordPress, use an .htaccess file to operate correctly.