Using MQTT on Mosquitto and Paho-openHab

Hallo. I’m new in openHab. I’ve been working towards this tutorial : http://www.iot-hub.org/2015/09/mqtt-with-mosquitto-beginners-tutorial.html. Can someone tell me how to make a connection between openhab, mosquitto and mqtt paho?? Thank you.

For the openHAB part see https://github.com/openhab/openhab/wiki/MQTT-Binding

See the Paho documentation for the language your client will be written in for help with that.