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:How to view the real error message when the website built by IIS displays "500 -Internal Server Error"

Last Updated:Apr 21, 2022

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A Windows instance uses IIS as a Web service for a Web site, and a "500 -internal server error" appears when accessing it. This error report does not output specific error items, which brings some difficulties to troubleshooting. This topic describes how to display real errors of a program to analyze website errors.


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  1. Log on to a Windows instance. For more information about how to log on to a Windows instance, see Connect to a Windows instance from a local client.
  2. In the menu bar, choose Start > Administrative Tools > Internet Information Service(IIS) Manager.
  3. In the left-side navigation pane, click Websites, and then click the error site. Find and click Error Page.
  4. Click Edit Feature Settings in the Actions column.
  5. In the Edit Error Page Settings dialog box that appears, select Detailed Error and click OK.
  6. Open the website and press the Ctrl + F5 key to force the browser to refresh. Confirm that you can see the real error message when revisiting.

Applicable scope

  • Elastic Compute Service (ECS)