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   ExtensionlessUrl-Integrated-4.0
Error Code   0x00000000
Requested URL   https://dataio.cn:443/Articles/%E6%9E%81%E5%B0%8F%E8%8A%AF%E7%89%87%E7%BC%96%E7%A8%8B%E9%9A%BE%E9%A2%98%E7%9A%84%E8%A7%A3%E5%86%B3%E6%96%B9%E6%A1%88
Physical Path   D:\Web\DIO_DNNv9_PROD\Articles\%E6%9E%81%E5%B0%8F%E8%8A%AF%E7%89%87%E7%BC%96%E7%A8%8B%E9%9A%BE%E9%A2%98%E7%9A%84%E8%A7%A3%E5%86%B3%E6%96%B9%E6%A1%88
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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