Internet Information Services 7.5

Error Summary

HTTP Error 404.11 - Not Found

The request filtering module is configured to deny a request that contains a double escape sequence.

Detailed Error Information
ModuleRequestFilteringModule
NotificationBeginRequest
HandlerStaticFile
Error Code0x00000000
Requested URLhttp://tinmung.net:80/THDC-Hai-%20Ngoai/Tam-phuong/Duc-Thanh-Cha/_DTC-2021/April-2021/DTC-bai-29-hiep-thong-voi-cac-thanh.htm
Physical PathE:\sites\Single15\tinmung2007\webroot\THDC-Hai-%20Ngoai\Tam-phuong\Duc-Thanh-Cha\_DTC-2021\April-2021\DTC-bai-29-hiep-thong-voi-cac-thanh.htm
Logon MethodNot yet determined
Logon UserNot yet determined
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.
Links and 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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