What are managed modules?

Question

I recently pushed some ASP.NET MVC 3 and 4 to IIS 7 and had serious problems. A typical fix is ​​to include the following in Web.Config:

<system.webServer> <httpErrors errorMode="Detailed" /> <asp scriptErrorSentToBrowser="true"/> <modules runAllManagedModulesForAllRequests="true" /> </system.webServer> 

My question is why? What is a managed module and how do they work with ASP.NET MVC / C #?

EDIT: After further testing, I found that this problem does not exist on Server 2008 R2 and IIS 7.5, but the question is still what is a managed module and how do I know if I use it in my code?

Answer 1

A module is an ASP.Net component that connects to a point in the query pipeline; There are many “official” modules, although you can also copy your own .

As you can see, the modules perform many functions, including output caching, various types of authorization and authentication, and much more.

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It’s best not to run all managed modules ; instead, if possible, find out which modules are needed for a particular application or platform. For ASP.Net MVC, this is most likely the routing module: System.Web.Routing.UrlRoutingModule .