With an .htaccess file, you shall determine how the server which addresses the requests to your Internet sites have to act in different cases. This is a text file with directives that are executed when someone tries to open your site and what happens next will depend on the content of the file. As an illustration, you may block a specific IP address from accessing the site, so the server will decline the visitor’s request, or you can forward your domain to some other URL, so the server will direct the visitor to the new web address. You could also use personalized error pages or secure any part of your Internet site with a password, if you place an .htaccess file inside the correct folder. Many popular script-driven apps, including Drupal™, Joomla™ and WordPress, use an .htaccess file to function correctly.