Getting Started with the Nginx Configuration File
The Nginx configuration file contains directives that are grouped into contexts. This tree-like structure allows you to configure Nginx to respond to incoming requests.
Chapters:
0:00 Intro
0:49 Main and server contexts
3:15 Redirecting to HTTPS
5:52 Proxy server
Some resources:
http://nginx.org/en/docs/beginners_guide.html
https://www.digitalocean.com/community/tutorials/understanding-the-nginx-configuration-file-structure-and-configuration-contexts