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.ienuk.com:80/community/news/ien-institute%EA%B0%80-%EC%83%88%EB%A1%9C%EC%9A%B4-%EA%B5%90%EC%9C%A1%EC%84%BC%ED%84%B0%EB%A1%9C-%EC%9D%B4%EC%A0%84%ED%95%A9%EB%8B%88%EB%8B%A4/
Physical Path   F:\home\ienedu3\www\community\news\ien-institute%EA%B0%80-%EC%83%88%EB%A1%9C%EC%9A%B4-%EA%B5%90%EC%9C%A1%EC%84%BC%ED%84%B0%EB%A1%9C-%EC%9D%B4%EC%A0%84%ED%95%A9%EB%8B%88%EB%8B%A4\
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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