Nginx HTTP Server - Fourth Edition

Modules

As we have learned earlier in Chapter 1, Downloading and Installing Nginx, modules in Nginx cannot be loaded dynamically and must be included at compile time. Additionally, they cannot be disabled at runtime since they are completely compiled and integrated in the main binary. Consequently, you should carefully consider your choice of modules when you build Nginx.

If you are worried about the impact on performance of the modules you selected, you should be aware that the only noticeable differences will come from filter modules. This name is given to modules that apply a filter to the content of requests and/or responses, and therefore they are always activated. Examples of filter modules are Addition, Charset, Gzip, SSI, and more. ...