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.raffaeledavinci.it:80/photogallery/per%20missitalia/Miss%20Italia%202015/REGIONALI%202015/Miss%20Eleganza%202015/Selinunte%20Backstage%20e%2012.8.2015/album/slides/RAF_2872.html
Physical Path   D:\inetpub\webs\raffaeledavinciit\photogallery\per%20missitalia\Miss%20Italia%202015\REGIONALI%202015\Miss%20Eleganza%202015\Selinunte%20Backstage%20e%2012.8.2015\album\slides\RAF_2872.html
Logon Method   Not yet determined
Logon User   Not yet determined
Request Tracing Directory   D:\LogFiles\FailedReqLogFiles

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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