title: Connection refused to mosquitto service in Raspbian
body: <p>I installed a fresh and clean new raspbian onto a raspberry pi A+ and added the 1.4.2 mosquitto package from mosquitto.org.</p>
  
  <p>With mqtt-gpio-Monitor from <a href="https://github.com/sumnerboy12/mqtt-gpio-monitor/issues/3" rel="nofollow">https://github.com/sumnerboy12/mqtt-gpio-monitor/issues/3</a> i try to connect but always get an error saying connection refused.</p>
  
  <p>Mosquitto_sub works without issues and connects correctly.</p>
  
  <p>The mosquitto service is listening on 0.0.0.0:1883 so what could be the reason for this error?</p>