mosquitto-client obtain refused connection
bash, linux, mosquitto, mqtt, shell
Solution
The default host:port combination for mosquitto_pub/sub is localhost:1883. If you do not have a broker running on your local computer then it will not be able to connect of course.
The solution is to either run the broker on your local computer, or to tell the utilities where to connect. For example:
mosquitto_sub -t newtopic/test -h test.mosquitto.org
Problem
I want to use MQTT protocol using mosquitto library. First of all, I want to do some test installing mosquitto-clients ``` sudo apt-get install mosquitto-clients ``` This program provides two "method": - mosquitto_pub - mosquitto_sub Following this instructions I'm trying to submit new topic: ``` mosquitto_sub -d -t newtopic/test ``` using default host/port [localhost/1883]. I obtain: ``` Error: Connection refused ``` Is too generic as error.. can anyone help me? Could be is a firewall problem? In this case, how can I check if is this the problem? I'm using linux ubuntu ( 3.8.0-42-generic #62~precise1-Ubuntu) nb same behaviour writing custom program using libmosquitto.