I have enabled the Failed Request Tracing in IIS 10. If I’m disabling the allow unlisted file name extensions within the request filtering, then the failed request logs are generated. I can only see the 404 status, but there is no information about the blocked extension.
ModuleName: RequestFilteringModule Notification: BEGIN_REQUEST HttpStatus: 404 HttpReason: Not Found HttpSubStatus: 7 ErrorCode: (0x0)
How can I get information which file extension has been blocked (to allow this extension)?