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.cooky.vn:811/blog/%20nhung-luu-y-khi-lau-don-ban-tho-de-khong-pham-than-linh-ngay-tet-3120?utm_source=Blog&utm_medium=RelatedA&utm_campaign=Nh%25EF%25BF%25BD%25EF%25BF%25BD%25EF%25BF%25BDng+l%25EF%25BF%25BD%25EF%25BF%25BDu+%25EF%25BF%25BD%25EF%25BF%25BD+khi+lau+d%25EF%25BF%25BD%25EF%25BF%25BD%25EF%25BF%25BDn+b%25EF%25BF%25BD%25EF%25BF%25BDn+th%25EF%25BF%25BD%25EF%25BF%25BD%25EF%25BF%25BD+%25EF%25BF%25BD%25EF%25BF%25BD%25EF%25BF%25BD%25EF%25BF%25BD%25EF%25BF%25BD+kh%25EF%25BF%25BD%25EF%25BF%25BDng+ph%25EF%25BF%25BD%25EF%25BF%25BD%25EF%25BF%25BDm+th%25EF%25BF%25BD%25EF%25BF%25BD%25EF%25BF%25BDn+linh+ng%25EF%25BF%25BD%25EF%25BF%25BDy+T%25EF%25BF%25BD%25EF%25BF%25BD%25EF%25BF%25BDt
Physical Path   C:\inetpub\wwwroot\Live\cooky.vn\blog\%20nhung-luu-y-khi-lau-don-ban-tho-de-khong-pham-than-linh-ngay-tet-3120
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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