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