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/836517/0/MANIFESTAZIONE+DI+INTERESSE, RISERVATA+ALLE+COOPERATIVE+SOCIALI+DI+TIPO+B+O+LORO+CONSORZI+A+PARTECIPARE+AD+UN+CONFRONTO+CONCORRENZIALE+TRAMITE+LA+PIATTAFORMA+SATER+DIRETTO+ALL'AFFIDAMENTO+DEL+SERVIZIO+DI+PULIZIA/eab81987-a1a3-45b0-a0f0-42b18482cc52;jsessionid=52537739D6ADCB20C3740CCAB318F841.lrfc-fe2?version=1.0
Physical Path   F:\web\comune.sogliano.fc.it\documents\836517\0\MANIFESTAZIONE+DI+INTERESSE, RISERVATA+ALLE+COOPERATIVE+SOCIALI+DI+TIPO+B+O+LORO+CONSORZI+A+PARTECIPARE+AD+UN+CONFRONTO+CONCORRENZIALE+TRAMITE+LA+PIATTAFORMA+SATER+DIRETTO+ALL'AFFIDAMENTO+DEL+SERVIZIO+DI+PULIZIA\eab81987-a1a3-45b0-a0f0-42b18482cc52;jsessionid=52537739D6ADCB20C3740CCAB318F841.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.

View more information »