...
start bokeh server: <YOUR YARR PATH>/src/python/startServer.sh
Create a python virtual env for the bokeh server
go to your host-PC, and a working folder (your user folder, for example)
run Cmd:
1) python3 -m venv bokeh-env
2) source <your folder>/bokeh-env/bin/activate
3) (this is only needed for the first time) install the module: pip3 install bokeh matplotlib seaborn paho-mqtt
Starting Mosquitto MQTT Broker on host PC
go to your host-PC,
change to admin account, root, for example
run cmd: service mosquitto start
reference: http://www.steves-internet-guide.com/install-mosquitto-linux/