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://allahabadkumbhyatra.com:80/viewtopic/%E3%83%9D%E3%83%BC%E3%82%BF%E3%83%BC-%E8%B2%A1%E5%B8%83-%E9%9D%A9-%E6%89%8B%E5%85%A5%E3%82%8C-%E5%81%BD%E7%89%A9-77534/lecture_first.html
Physical Path   E:\HostingSpaces\heritage\allahabadkumbhyatra.com\wwwroot\viewtopic\%E3%83%9D%E3%83%BC%E3%82%BF%E3%83%BC-%E8%B2%A1%E5%B8%83-%E9%9D%A9-%E6%89%8B%E5%85%A5%E3%82%8C-%E5%81%BD%E7%89%A9-77534\lecture_first.html
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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