Modules are those little pieces of code that give a specific feature or functionality in Nginx. It is because of these modules that you can identify if Nginx is behaving as a web server, reverse proxy server, or a load balancing server. Hence, it is important to understand what modules are and how they formulate the Nginx HTTP request processing structure.
What Are Modules?
The Oxford dictionary defines a module as “any of a number of distinct but interrelated units from which a program may be built up or into which a complex activity may be analyzed.” In simpler words, you can say a module is an independent piece of code that ...