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   https://www.touristgah.com:443/Iran/City/Hotels/%DA%86%D8%A7%D8%A8%D9%87%D8%A7%D8%B1?HotelStars=3&HotelStar=3-%25D8%25B3%25D8%25AA%25D8%25A7%25D8%25B1%25D9%2587&Zones=7&HotelZone=%25D8%25B4%25D9%2585%25D8%25A7%25D9%2584-%25D8%25B4%25D9%2587%25D8%25B1&HotelFacilities=98&HotelFacility=%25DA%25A9%25D9%2584%25D8%25A7%25D8%25A8-%25D8%25B4%25D8%25A8%25D8%25A7%25D9%2586%25D9%2587
Physical Path   C:\inetpub\wwwroot\Iran\City\Hotels\%DA%86%D8%A7%D8%A8%D9%87%D8%A7%D8%B1
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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