Debugging TCP and TLS issues with OpenSSL and Wireshark

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In episode 3 of FreeRTOS On Demand Video, we mention our sessions at Embedded World 2020 and provide a walkthrough — by Carl Lundin — on how to debug network connectivity issues using open source tools like OpenSSL, TCPDUMP, and Wireshark with a Raspberry Pi. In this scenario we have a faulty root CA due to us using the incorrect endpoint for the AWS MQTT broker.