Guillaume Bour

thanks @wiml. I will have a look this weekend

Hi @wiml. First, thank you for your PR, it is very interesting. But your changes triggers an exception, when setting an invalid domain name: current master branch: ``` > letsencrypt:make_cert(,...

version=4 enable mqtt 3.1.1 (latest protocol version), while version=3 stick to past 3.1 version. Which broker are you testing the demo with ? does it support mqtt v3.1.1 ?

yes, Emqtt is supporting Mqtt v3.1.1 Could you try with mosquitto tools (mosquitto_pub & mosquitto_sub) with option *--protocol-version mqttv311* Could you also take & send a network trace when using...

Hi @jinrm, sorry for the delay. I totally agree this contribution, and I just sent you my contact infors

lets use [mqtt-malaria](https://github.com/remakeelectric/mqtt-malaria)