HTTP Error 404.11 - Not Found

The request filtering module is configured to deny a request that contains a double escape sequence.

Most likely causes:

  • The request contained a double escape sequence and request filtering is configured on the Web server to deny double escape sequences.

Things you can try:

  • Verify the configuration/system.webServer/security/requestFiltering@allowDoubleEscaping setting in the applicationhost.config or web.confg file.

Detailed Error Information:

Module   RequestFilteringModule
Notification   BeginRequest
Handler   ExtensionlessUrlHandler-Integrated-4.0
Error Code   0x00000000
Requested URL   http://ghas-studio.com:80/Article/News/AC20081819090178/%E4%B8%80%E5%BC%B5%E5%B0%88%E6%A5%AD%E7%9A%84%E5%BD%A2%E8%B1%A1%E7%85%A7%EF%BC%8C%E7%82%BA%E4%BD%A0%E9%96%8B%E5%95%9F%E9%9D%9E%E5%87%A1%E7%9A%84%E4%BA%BA%E7%94%9F%E9%81%93%E8%B7%AF%EF%BD%9E
Physical Path   C:\WebSites\iSellSite\Article\News\AC20081819090178\%E4%B8%80%E5%BC%B5%E5%B0%88%E6%A5%AD%E7%9A%84%E5%BD%A2%E8%B1%A1%E7%85%A7%EF%BC%8C%E7%82%BA%E4%BD%A0%E9%96%8B%E5%95%9F%E9%9D%9E%E5%87%A1%E7%9A%84%E4%BA%BA%E7%94%9F%E9%81%93%E8%B7%AF%EF%BD%9E
Logon Method   Not yet determined
Logon User   Not yet determined

More Information:

This is a security feature. Do not change this feature unless the scope of the change is fully understood. You should take a network trace before changing this value to confirm that the request is not malicious. If double escape sequences are allowed by the server, modify the configuration/system.webServer/security/requestFiltering@allowDoubleEscaping setting. This could be caused by a malformed URL sent to the server by a malicious user.

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