This tutorial covers the OpenCart installation with Nginx, PHP-fpm and MariaDB on Ubuntu 15.10. OpenCart is free open source e-commerce software based on PHP and MySQL. OpenCart allows you to setup and run your own online store at a minimal cost. The software is suitable for a small and medium online businesses, it is easy to install and there are many add-ons and extensions available. OpenCart comes with translations for numerous languages and supports multiple currencies.