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   PageHandlerFactory-Integrated-4.0
Error Code   0x00000000
Requested URL   http://www.theatroedu.gr:80/%CE%A0%CF%81%CE%BF%CE%B3%CF%81%CE%AC%CE%BC%CE%BC%CE%B1%CF%84%CE%B1/%CE%95%CF%83%CF%8D%CF%8C%CF%80%CF%89%CF%82%CE%BA%CE%B9%CE%95%CE%B3%CF%8E/%CE%95%CE%BF%CE%95%CF%87%CF%81%CE%AE%CF%83%CE%B9%CE%BC%CE%BF%CF%85%CE%BB%CE%B9%CE%BA%CF%8C/tabid/3863/ctl/SendPassword/language/el-GR/Default.aspx?returnurl=http://www.theatroedu.gr/el-gr/%25CF%2580%25CF%2581%25CE%25BF%25CE%25B3%25CF%2581%25CE%25AC%25CE%25BC%25CE%25BC%25CE%25B1%25CF%2584%25CE%25B1/%25CE%25B5%25CF%2583%25CF%258D%25CF%258C%25CF%2580%25CF%2589%25CF%2582%25CE%25BA%25CE%25B9%25CE%25B5%25CE%25B3%25CF%258E/%25CE%25B5%25CE%25BF%25CE%25B5%25CF%2587%25CF%2581%25CE%25AE%25CF%2583%25CE%25B9%25CE%25BC%25CE%25BF%25CF%2585%25CE%25BB%25CE%25B9%25CE%25BA%25CF%258C.aspx
Physical Path   h:\root\home\theatroedu-001\www\theatroedu\%CE%A0%CF%81%CE%BF%CE%B3%CF%81%CE%AC%CE%BC%CE%BC%CE%B1%CF%84%CE%B1\%CE%95%CF%83%CF%8D%CF%8C%CF%80%CF%89%CF%82%CE%BA%CE%B9%CE%95%CE%B3%CF%8E\%CE%95%CE%BF%CE%95%CF%87%CF%81%CE%AE%CF%83%CE%B9%CE%BC%CE%BF%CF%85%CE%BB%CE%B9%CE%BA%CF%8C\tabid\3863\ctl\SendPassword\language\el-GR\Default.aspx
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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