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   ExtensionlessUrlHandler-Integrated-4.0
Error Code   0x00000000
Requested URL   http://ngochoi.kontum.gov.vn:80/tai-lieu-sinh-hoat-chi-bo/Ban-tin-thong-bao-noi-bo-phuc-vu-sinh-hoat-chi-bo-thang-032023-cua-Ban-Tuyen-giao-TW-phan-%E2%80%9CThoi-su-the-gioi%E2%80%9D-va-%E2%80%9CThoi-su-trong-nuoc%E2%80%9D-28283
Physical Path   C:\webspace\ngochoi.kontum.gov.vn\httpdocs\tai-lieu-sinh-hoat-chi-bo\Ban-tin-thong-bao-noi-bo-phuc-vu-sinh-hoat-chi-bo-thang-032023-cua-Ban-Tuyen-giao-TW-phan-%E2%80%9CThoi-su-the-gioi%E2%80%9D-va-%E2%80%9CThoi-su-trong-nuoc%E2%80%9D-28283
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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