ASP. NET Core Publishing

1. Unlike the ASP. NET era, ASP. Core is no longer hosted by the IIS worker process (w3wp.exe), but is run with a self-hosted Web server (Kestrel), and IIS is a reverse proxy role forwarding request to an ASP. NET Core program that Kestrel different ports. The received request is then pushed to the middleware pipeline, and the HTTP response data is then written back to IIS after processing your request and related business logic, eventually to different clients (browsers, apps, clients, etc.). While the configuration files and procedures will be slightly adjusted, the most important role in the middle is aspnetcoremodule, which is one of the IIS modules, the request is immediately forwarded to IIS, and quickly redirected to the ASP. So this time we don't need to set up the application pools hosting our code, it's just forwarding the request

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ASP. NET Core Publishing