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.beijingmaohou.cn:80/portfolio-item/%E5%8C%97%E4%BA%AC%E6%AF%9B%E7%8C%B4%E6%9D%90%E6%96%99%E5%8C%85%E5%86%B0%E7%B3%96%E8%91%AB%E8%8A%A6%E9%9D%9E%E9%81%97%E6%89%8B%E5%B7%A5%E5%B0%8F%E5%AD%A6%E4%B8%AD%E5%AD%A6diy%E6%95%99%E5%AD%A6/
Physical Path   C:\inetpub\wwwroot\portfolio-item\%E5%8C%97%E4%BA%AC%E6%AF%9B%E7%8C%B4%E6%9D%90%E6%96%99%E5%8C%85%E5%86%B0%E7%B3%96%E8%91%AB%E8%8A%A6%E9%9D%9E%E9%81%97%E6%89%8B%E5%B7%A5%E5%B0%8F%E5%AD%A6%E4%B8%AD%E5%AD%A6diy%E6%95%99%E5%AD%A6\
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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