Asp.net Impersonation 500 Internal Server Error
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Per NygaardMay 6, 20110 0 0 0 The next hurdle to solve is identity impersonate= true error to connect to the database with the correct user. http error 500.24 - internal server error Without doing anything, your connection will be made by the application pool account - system web identity impersonate is set to true inthe describedscenario that would be themydomain\hrwebact account. That was not whatyou wanted. The business requirement were that "all authorization should be managed on validation validateintegratedmodeconfiguration false the SQL Server", and that would require that the connection to SQL Server is made with the end-user credentials. To fix this,you need to ensure that the application is impersonating the end-user when the connection to theSQL Serveris made. If you search for "ASP.NET" and"impersonation" in your
Http Error 404.2 - Not Found
favorite search engine, then it is likely that you would find guidance on how to enable ASP.NET impersonation in this way:
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Asp.net Impersonation Iis
7.0 ASP.NET 2.0 Breaking Changes on IIS 7.0 By Mike VolodarskyMarch 15, 2008Introduction ASP.NET 2.0 this operation requires iis integrated pipeline mode. applications on IIS 7.0 and above are hosted using the ASP.NET Integrated mode by default. This new mode enables a myriad of http error 500.19 - internal server error exciting scenarios, including using valuable ASP.NET features such as Forms Authentication for your entire Web site, and developing new ASP.NET modules to do things such as URL rewriting, authorization, logging, and more at the IIS level. https://blogs.msdn.microsoft.com/autz_auth_stuff/2011/05/06/impersonation/ For more information about the ASP.NET Integration in IIS, see: ASP.NET Integration with IIS7 and Above. While making ASP.NET applications more powerful in IIS 7.0 and above, we also worked diligently to ensure that existing ASP.NET applications continue to work when migrated to this new platform. This was a major challenge for us as we re-architected the entire core engine of ASP.NET, and in the end we were highly successful in meeting it. http://www.iis.net/learn/application-frameworks/building-and-running-aspnet-applications/aspnet-20-breaking-changes-on-iis As a result, most ASP.NET applications should work without change. This article lists the changes in behavior that you may encounter when deploying your ASP.NET applications on IIS 7.0 and above on Windows Vista SP1 and Windows Server 2008. Except where noted, these breaking changes occur only when using the default ASP.NET Integrated mode. Using Classic ASP.NET mode IIS 7.0 and above also offers the ability to run ASP.NET applications using the legacy Classic ASP.NET Integration mode, which works the same way as ASP.NET has worked on previous versions of IIS. However, we strongly recommend that you use a workaround where available to change your application to work in Integrated mode instead. Moving to Classic mode will make your application unable to take advantage of ASP.NET improvements made possible in Integrated mode, leveraging future features from both Microsoft and third parties that may require the Integrated mode. Use Classic mode as a last resort if you cannot apply the specified workaround. For more information about moving to Classic mode, see: Changing the ASP.NET integration mode. Below, I discuss some of the breaking changes in detail. Where available, I include links to blog posts that contain additional details and workaround information. If you require more information on a particular problem, please post a question on the IIS.net forums. Brea
Forum C# Programming C-Sharp Programming Problem using impersonation If this is your first visit, be sure to check out the http://forums.codeguru.com/showthread.php?520048-Problem-using-impersonation FAQ by clicking the link above. You may have to register or https://tonybigworld.wordpress.com/2012/11/27/integrated-mode-and-classic-mode/ Login before you can post: click the register link above to proceed. To start viewing messages, select the forum that you want to visit from the selection below. Results 1 to 6 of 6 Thread: Problem using impersonation Tweet Thread Tools Show Printable Version Email this Page… Subscribe internal server to this Thread… Display Linear Mode Switch to Hybrid Mode Switch to Threaded Mode January 12th, 2012,07:24 AM #1 dsm1995gst View Profile View Forum Posts Junior Member Join Date May 2003 Posts 13 Problem using impersonation Intranet web app, ASP, C# - I'm trying to add some functionality that will read remote info from PC's on our network that requires internal server error accessing their registries remotely, etc. When I run the code locally on my PC, it runs fine. When I run it from our IIS server, I'm getting the error: "System.Security.SecurityException: Requested registry access is not allowed." I did some research and realized the problem was that it was using a generic username to run the app from IIS and then I came upon impersonation. So in order to impersonate the user logged into Windows (me), I used the following code around the code I'm running that requires the access, per Microsoft: Code: System.Security.Principal.WindowsImpersonationContext impersonationContext; impersonationContext = ((System.Security.Principal.WindowsIdentity)User.Identity).Impersonate(); //code impersonationContext.undo(); Using the code below, I can verify that it does detect my username as the logged on user, whereas if I run it without the above impersonation code, it displays NT AUTHORITY\NETWORK SERVICE. Code: string username = System.Security.Principal.WindowsIdentity.GetCurrent().Name.ToString(); However, I am now getting the similar error: "System.UnauthorizedAccessException: Attempted to perform an unauthorized operation. ASP.NET is not authorized to access the requested resource. Consider granting access rights to the resource to the ASP.NET request identity. ASP.NET has a base process
However when it published on the IIS 7, it gave the error: 500 - Internal server error. As this error is too general, also the IIS logs didn't give much clues either. I spent a few hours (tried checking .net Framework setting, application pool setting, site setting etc.) to find the tricky as it seems all other settings are correct. Eventually I found, if change the default setting "Integrated" mode to "Classic" mode, those aspx pages were able to display no problem. The question comes 1. What is the difference between the two modes? 2. Should "Class" mode be used in this case or something is wrong? First question answer: Integrated application pool mode When an application pool is in Integrated mode, you can take advantage of the integrated request-processing architecture of IIS and ASP.NET. When a worker process in an application pool receives a request, the request passes through an ordered list of events. Each event calls the necessary native and managed modules to process portions of the request and to generate the response. There are several benefits to running application pools in Integrated mode. First the request-processing models of IIS and ASP.NET are integrated into a unified process model. This model eliminates steps that were previously duplicated in IIS and ASP.NET, such as authentication. Additionally, Integrated mode enables the availability of managed features to all content types. Classic application pool mode When an application pool is in Classic mode, IIS 7.0 handles requests as in IIS 6.0 worker process isolation mode. ASP.NET requests first go through native processing steps in IIS and are then routed to Aspnet_isapi.dll for processing of managed code in the managed runtime. Finally, the request is routed back through IIS to send the response. This separation of the IIS and ASP.NET request-processing models results in duplication of some processing steps, such as authentication and authorization. Additionally, managed code features, such as forms authentication, are only available to ASP.NET applications or applications for which you have script mapped all requests to be handled by aspnet_isapi.dll. Be sure to test your existing applications for compatibility in Integrated mode before upgrading a production environment to IIS 7.0 and assigning applications to application pools in Integrated mode. You should only add an application to an app