![]() Received an inappropriate message This alert should never be observed in communication between proper implementations. Notifies the recipient that the sender will not send any more messages on this connection. For simplicity, I have created a simpler table combining both the MSDN documentation and the RFC for usability. However, the article never mentions the alert codes while explaining the messages. There is MSDN article which describes these messages more briefly. Alert MessagesĮnum AlertLevel īad_certificate_hash_value_RESERVED(114), ![]() Below is a snippet from the above RFC describing the various alert messages: B.2. The RFC has a definition for the various alert messages encountered during SSL/TLS handshake. These alert codes have been defined precisely in TLS/SSL RFC’s for all the existing protocol versions. However, there is not much documentation available on the description of the alert codes. These warnings sometimes are very helpful in troubleshooting SSL related issues and provide important clues. Please refer the following article to do so: ĭescription: The following fatal alert was received: 47. SChannel logging may have to be enabled on the windows machines to get detailed SChannel messages. ![]() The numbers especially, play a trivial role in understanding the problem/failure within the SSL/TLS handshake. These alerts are used to notify peers of the normal and error conditions. The logging mechanism is a part of the SSL/TLS Alert Protocol. A closer looks provides that there is a number associated with these failure messages. During SSL/TLS handshake failures, you may notice a SChannel event being logged in the System event logs.
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