GNU/Linux Ubuntu Installing NGINX Guides
You are Welcome! The Linked Guides Show You Step-by-Step How to Install the Latest NGINX Web Server Stable/Mainline Release in Ubuntu GNU/Linux Distribution.
Because NGINX for Ubuntu is a Free, Open-Source, High-Performance HTTP Server and Reverse Proxy, as well as an IMAP/POP3 Proxy Server.
And the Nginx Foundation have Predisposed the Repositories for Several Linux Distros and between them is Present also that for Ubuntu.
Finally, the Guides include Instructions on How to Getting Started with NGINX on Ubuntu.