nginx consists of modules which are controlled by directives specified in the configuration file. Directives are divided into simple directives and block directives. A simple directive consists of the name and parameters separated by spaces and ends with a semicolon (;). A block directive has the same structure as a simple directive, but instead of the semicolon it ends with a set of additional instructions surrounded by braces ({?and?}). If a block directive can have other directives inside braces, it is called a context (examples:?events,?http,?server, and?location).
Directives placed in the configuration file outside of any contexts are considered to be in themain?context. The?events?and?http?directives reside in the?main?context,?server?in?http, and?locationin?server.
The rest of a line after the?#?sign is considered a comment.
