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   ApiURIs-ISAPI-Integrated-4.0
Error Code   0x00000000
Requested URL   http://news.u-car.com.tw:80/article/35181/%E6%9C%AA%E4%BE%86%E5%B0%B1%E6%98%AF%E4%BB%8A%E5%A4%A9%EF%BC%8C%E5%85%A8%E8%87%BA%E9%A6%96%E5%BA%A7%E6%A5%B5%E9%80%9FBMW%E7%9B%B4%E6%B5%81%E5%85%85%E9%9B%BB%E7%AB%99%E5%95%9F%E7%94%A8
Physical Path   F:\Webs\U-CAR\u-car.com.tw\article\35181\%E6%9C%AA%E4%BE%86%E5%B0%B1%E6%98%AF%E4%BB%8A%E5%A4%A9%EF%BC%8C%E5%85%A8%E8%87%BA%E9%A6%96%E5%BA%A7%E6%A5%B5%E9%80%9FBMW%E7%9B%B4%E6%B5%81%E5%85%85%E9%9B%BB%E7%AB%99%E5%95%9F%E7%94%A8
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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