Summary
This chapter provided a first approach to the configuration architecture by studying the syntax and the core module directives that have an impact on the overall server performance. We then went through a series of adjustments in order to fit your own profile, followed by a procedure to upgrade your running NGINX server without losing connections.
However, this is just the beginning. Practically everything that we will do from now on is to prepare configuration sections. The next chapter will detail more advanced directives by further exploring the module system and the exciting possibilities that are offered to you by it.