Ubuntu Install Mqtt

1. Introduction of Mosquitto Warehouse and update

$sudo apt-add-repository Ppa:mosquitto-dev/mosquitto-ppa

$sudo apt-get Update

2. Install the Mosquitto package by executing the following command

$sudo Apt-get Install Mosquitto

3. Installing the Mosquitto Development Kit

$sudo apt-get instal Llibmosquitto-dev

4. Installing the Mosquitto client

$sudo Apt-get Install Mosquitto-clients

5. Query whether Mosquitto is running correctly

$sudo Service Mosquitto Status

6. Native Test

Open a terminal and execute the following command to subscribe to the topic "MQTT"

$mosquitto _sub-h localhost-t "Mqtt"-V

Open another terminal, post a message to the topic "MQTT"

$mosquitto _pub-h localhost-t "Mqtt"-M "Hello Mqtt"

Now you will see that the message is displayed on the previous terminal.