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   ExtensionlessUrl-Integrated-4.0
Error Code   0x00000000
Requested URL   https://theatroedu.gr:443/%CE%91%CF%81%CF%87%CE%B5%CE%AF%CE%BF/ctl/RSS/mid/459/CategoryID/450?CategoryName=%25CE%2593%25CF%2581%25CE%25B1%25CF%2586%25CE%25B5%25CE%25AF%25CE%25BF-%25C2%25AB%25CE%25BA%25CE%25B9-%25CE%25B1%25CE%25BD-%25CE%25AE%25CF%2583%25CE%25BF%25CF%2585%25CE%25BD-%25CE%25B5%25CF%2583%25CF%258D%25C2%25BB-%25CE%2594%25CF%2585%25CF%2584%25CE%25B9%25CE%25BA%25CE%25AE%25CF%2582-%25CE%2595%25CE%25BB%25CE%25BB%25CE%25AC%25CE%25B4%25CE%25B1%25CF%2582
Physical Path   h:\root\home\theatroedu-001\www\theatroedu\%CE%91%CF%81%CF%87%CE%B5%CE%AF%CE%BF\ctl\RSS\mid\459\CategoryID\450
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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