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%97%E3%83%A9%E3%83%80-%E8%B2%A1%E5%B8%83-%E3%83%A1%E3%83%B3%E3%82%BA-%E4%B8%AD%E5%8F%A4-%E3%82%B9%E3%83%BC%E3%83%91%E3%83%BC-%E3%82%B3%E3%83%94%E3%83%BC-85822/lecture_first.html
Physical Path   E:\HostingSpaces\heritage\allahabadkumbhyatra.com\wwwroot\viewtopic\%E3%83%97%E3%83%A9%E3%83%80-%E8%B2%A1%E5%B8%83-%E3%83%A1%E3%83%B3%E3%82%BA-%E4%B8%AD%E5%8F%A4-%E3%82%B9%E3%83%BC%E3%83%91%E3%83%BC-%E3%82%B3%E3%83%94%E3%83%BC-85822\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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