mosquitto - how to test MQTT server in ubuntu? -


i have installed mqtt server 'mosquitto' in ubuntu machine following instructions in link https://lukeisadog.wordpress.com/2014/02/27/setting-up-mqtt-on-ubuntu-round-1/ . not able test server. when type mosquitto in command prompt getting below error.

 1431416111: mosquitto version 1.4.2 (build date 2015-05-09  21:39:32+0000) starting  1431416111: using default config.  1431416111: opening ipv4 listen socket on port 1883. 1431416111: error: address in use

when type mosquitto –daemon –verbose getting error "unknown option '–daemon'". please me on this.

if have install mosquitto repository, have started automatically you. try connecting e.g.

mosquitto_sub -t '$sys/#' -v

you may need install mosquitto-clients package first.

if works, have instance of mosquitto running. if want run broker manually yourself, can stop automatically started instance sudo stop mosquitto.

with regards unknown option, should note need 2 dashes, --daemon, not -daemon.


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