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.eksperlerdernegi.com:80/files/downloads/PageFiles/%7B1d37ee98-2df3-4483-b9fe-fa46fadfa31a%7D/Files/Maden%20FKS%20GSS.pdf
Physical Path   D:\webroot\corporate\tused\tused.com.tr\files\downloads\PageFiles\%7B1d37ee98-2df3-4483-b9fe-fa46fadfa31a%7D\Files\Maden%20FKS%20GSS.pdf
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.

View more information »