This is step by step procedure for, how to configure the authcache, varnih and ESI for the drupal7 project in NGINX erver. To configuring the Nginx Server use the procedure from document " http://www.geoffstratton.com/2014/03/nginx-php-fpm-apc-ssl-drupal/ " Well, make sure your nginx server is up and running. 1.Configuring the Authcache module. Download the module from https://www.drupal.org/project/authcache Enable only the authcache module Go to admin/reports/status , then you can see the Authcache area is red and saying that there is no back end has been configured. 2.Configure Varnish on the back-end[nginx server]. Using the Following commands, $ curl http://repo.varnish-cache.org/debian/GPG-key.txt | sudo apt-key add - $ echo "deb http://repo.varnish-cache.org/ubuntu/ precise varnish-3.0" | sudo tee -a /etc/apt/sources.list $ sudo apt-get update $ sudo apt-get install varnish Configure Varnish: