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://racingandsports.cn:80/racing/%E3%80%8C%E9%98%BF%E5%B0%94%E9%A9%AC%E5%B8%8C%E5%B0%94%E3%80%8D%E6%94%B6%E8%8E%B7%E7%AC%AC35%E5%8C%B9%E9%94%A6%E6%A0%87%E8%B5%9B%E5%86%A0%E5%86%9B%E5%AD%90%E5%97%A3-story-502911
Physical Path   C:\inetpub\wwwroot\racingandsports.cn\racing\%E3%80%8C%E9%98%BF%E5%B0%94%E9%A9%AC%E5%B8%8C%E5%B0%94%E3%80%8D%E6%94%B6%E8%8E%B7%E7%AC%AC35%E5%8C%B9%E9%94%A6%E6%A0%87%E8%B5%9B%E5%86%A0%E5%86%9B%E5%AD%90%E5%97%A3-story-502911
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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