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://www.racingandsports.cn:80/racing/%E6%99%AE%E8%B5%96%E5%BE%B7%E5%B8%8C%E6%9C%9B%E3%80%8C%E7%88%B1%E5%BE%B7%E5%8D%8E%E5%A4%9A%E3%80%8D%E8%83%BD%E5%8F%82%E5%8A%A0%E5%B7%85%E5%B3%B0%E8%B5%9B-story-524026
Physical Path   C:\inetpub\wwwroot\racingandsports.cn\racing\%E6%99%AE%E8%B5%96%E5%BE%B7%E5%B8%8C%E6%9C%9B%E3%80%8C%E7%88%B1%E5%BE%B7%E5%8D%8E%E5%A4%9A%E3%80%8D%E8%83%BD%E5%8F%82%E5%8A%A0%E5%B7%85%E5%B3%B0%E8%B5%9B-story-524026
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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