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.comune.sogliano.fc.it:80/documents/836517/2954023/BANDO+PER+LA+CONCESSIONE+DI+CONTRIBUTI+IN+GHIAIA+E+MANODOPERA+PER+LA+MANUTENZIONE+DELLE+STRADE+COSTITUENTI+VIABILITA’ MINORE/d96f7f6d-4e20-48ea-85d9-41387e5f30ef;jsessionid=5E3C9FD259B84DAB1A0DA544C19337E6.lrfc-fe2?version=1.0
Physical Path   F:\web\comune.sogliano.fc.it\documents\836517\2954023\BANDO+PER+LA+CONCESSIONE+DI+CONTRIBUTI+IN+GHIAIA+E+MANODOPERA+PER+LA+MANUTENZIONE+DELLE+STRADE+COSTITUENTI+VIABILITA’ MINORE\d96f7f6d-4e20-48ea-85d9-41387e5f30ef;jsessionid=5E3C9FD259B84DAB1A0DA544C19337E6.lrfc-fe2
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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