Setting Up Nginx Server Blocks on Ubuntu 18.04
Nginx Server Blocks allows you to run more than one website on a single machine. With Server Blocks, you can specify the site document root (the directory which contains the website files), create a separate security policy for each site, use different SSL certificates for each site and much more.
NGINX is a free, open-source, high-performance HTTP server and reverse proxy, as well as an IMAP/POP3 proxy server.