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/el-gr/%CF%80%CE%BF%CE%B9%CE%BF%CE%B9%CE%B5%CE%AF%CE%BC%CE%B1%CF%83%CF%84%CE%B5/%CF%84%CE%BF%CE%B4%CE%AF%CE%BA%CF%84%CF%85%CE%BF%CF%83%CE%B5%CE%B4%CE%B9%CE%AC%CF%86%CE%BF%CF%81%CE%B5%CF%82%CF%80%CF%8C%CE%BB%CE%B5%CE%B9%CF%82/%CE%B9%CF%8C%CE%BD%CE%B9%CE%BF/2018_1_20%CE%BA%CE%AD%CF%81%CE%BA%CF%85%CF%81%CE%B1%CE%B5%CE%AF%CE%BC%CE%B1%CE%B9,%CE%B3%CE%B9%CE%B1%CF%84%CE%AF%CE%B5%CE%AF%CE%BC%CE%B1%CF%83%CF%84%CE%B5.aspx
Physical Path   h:\root\home\theatroedu-001\www\theatroedu\el-gr\%CF%80%CE%BF%CE%B9%CE%BF%CE%B9%CE%B5%CE%AF%CE%BC%CE%B1%CF%83%CF%84%CE%B5\%CF%84%CE%BF%CE%B4%CE%AF%CE%BA%CF%84%CF%85%CE%BF%CF%83%CE%B5%CE%B4%CE%B9%CE%AC%CF%86%CE%BF%CF%81%CE%B5%CF%82%CF%80%CF%8C%CE%BB%CE%B5%CE%B9%CF%82\%CE%B9%CF%8C%CE%BD%CE%B9%CE%BF\2018_1_20%CE%BA%CE%AD%CF%81%CE%BA%CF%85%CF%81%CE%B1%CE%B5%CE%AF%CE%BC%CE%B1%CE%B9,%CE%B3%CE%B9%CE%B1%CF%84%CE%AF%CE%B5%CE%AF%CE%BC%CE%B1%CF%83%CF%84%CE%B5.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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