Troubleshooting HTTP Error 404.11 – Not Found: Request Filtering Module Configuration Issue

Error summary

HTTP Error 404.11 – Not Found

The request filtering module is configured to reject requests containing double escape sequences.

Detailed error information module RequestFilteringModule notification BeginRequest handler StaticFile Error code 0x00000000 Requested URL Physical path E:\ddove.com\web.www.ddove.com.data\list_0_%E6%9F%94%E9%81%93%E9 %A6%86_1_0_3___4.html Login method has not been determined. Login user has not been determined. Most likely reasons:

  • The request contained a double escape sequence, and request filtering configured on the web server rejects double escape sequences.

Things to try:

  • Confirm 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. Please do not change this feature unless you are fully aware of the scope of the change. Before changing this value, a network trace should be performed to confirm that the request is not malicious. If your server allows double escape sequences, modify the configuration/system.webServer/security/requestFiltering@allowDoubleEscaping setting. This may be caused by a malformed URL sent to the server by a malicious user.

More information”

2024-04-10 15:51:24
#IIS #detailed #error

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