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   StaticFile
Error Code   0x00000000
Requested URL   http://www.chinatouradvisors.com:80/chinatour/Search-%E5%A4%9C%E9%97%B4%E8%B5%8F%E7%81%AF%EF%BC%8C%E8%AF%B7%E6%B3%A8%E6%84%8F%E7%A9%BF%E8%A1%A3%E4%BF%9D%E6%9A%96%EF%BC%9B-MulipleDays--Any-4-1.html
Physical Path   C:\Inetpub\vhosts\chinatouradvisors.com\httpdocs\chinatour\Search-%E5%A4%9C%E9%97%B4%E8%B5%8F%E7%81%AF%EF%BC%8C%E8%AF%B7%E6%B3%A8%E6%84%8F%E7%A9%BF%E8%A1%A3%E4%BF%9D%E6%9A%96%EF%BC%9B-MulipleDays--Any-4-1.html
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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