IIS Modules
IIS Modules are extensible components that add functionality to Internet Information Services (IIS), Microsoft's web server for Windows. They handle specific tasks like authentication, compression, logging, or URL rewriting, allowing developers to customize and enhance server behavior without modifying core IIS code. These modules integrate seamlessly into the IIS request-processing pipeline, enabling fine-grained control over how web applications are served.
Developers should learn IIS Modules when building or deploying ASP.NET, ASP.NET Core, or other web applications on Windows servers, as they enable optimization, security, and customization of web hosting. Use cases include implementing custom authentication schemes (e.g., with Windows Authentication or OAuth), enabling dynamic compression to reduce bandwidth, or setting up URL rewriting for SEO-friendly URLs in production environments.