With an .htaccess file, you can define how the server which handles the requests to your web sites must act a number of situations. This is a text file with directives that are carried out when an individual tries to open your website and what happens next is determined by the content of the file. For example, you can block a specific IP address from opening the website, and the server will decline your visitor’s request, or you can redirect your domain to another URL, so the server will redirect the visitor to the new web address. You could also use personalized error pages or protect any part of your Internet site with a password, if you place an .htaccess file in the correct folder. Many popular script-driven applications, like Drupal™, Joomla™ and WordPress, use an .htaccess file to work correctly.