No working window appaers after start.



  • I have successfully installed Mosquitto on a Raspberry Pi 3 B+ (Debian = stretch).

    Here is the result on the Raspberry :

         pi@raspberrypi:~ $ mosquitto -v
         1559603778: mosquitto version 1.6.2 starting
         1559603778: Using default config.
         1559603778: Opening ipv4 listen socket on port 1883.
         1559603778: Error: Address already in use
         pi@raspberrypi:~ $ 
    

    Apparently runs the program but no working window appears on the screen.

    What am I doing wrong?

    Jack DG



  • @mslv129jdg said in No working window appaers after start.:

    Error: Address already in use

    I do not use Mosquito, but maybe it is already running automatically after RPI starts?



  • Thank you for your efforts.
    Apparently it doesn't matter that the port is already in use.
    0_1559660433501_32a9c9fe-e51d-47ad-b951-5462ba0cea05-image.png

    Can this help you?
    https://randomnerdtutorials.com/how-to-install-mosquitto-broker-on-raspberry-pi/

    I can't find a forum for Mosquitto users either.

    Greetings.

    JackDG



  • @mslv129jdg

    mosquitto -v #start in verbose mode

    If your mosquito is already running, you cannot start it again.

    First stop it:

    sudo service mosquitto stop
    sudo systemctl stop mosquitto.service
    
    
    

    And then try your:

    mosquitto -v 
    


  • Tanks Kimot,

    I do what you says and this what happen not more.

    pi@raspberrypi:~ $ sudo service mosquitto stop
    pi@raspberrypi:~ $ sudo systemctl stop mosquitto.service
    pi@raspberrypi:~ $ mosquitto -v
    1559686190: mosquitto version 1.6.2 starting
    1559686190: Using default config.
    1559686190: Opening ipv4 listen socket on port 1883.
    1559686190: Opening ipv6 listen socket on port 1883.



  • @mslv129jdg How do you have installed mosquitto? if you have installed it with the standard

    sudo apt install mosquitto mosquitto-clients
    

    then, the server starts automatically when you boot your Pi.

    Mosquitto is a server program so it is normal that you don't see any new window. See this if you want to know how to test your MQTT server.



  • I just uninstall mosquitto... with sudo apt-get purge --remove mosquitto*

    The first time i install with :
    sudo wget http://repo.mosquitto.org/debian/mosquitto-repo.gpg.key
    sudo apt-key add mosquitto-repo.gpg.key
    cd /etc/apt/sources.list.d/
    sudo wget http://repo.mosquitto.org/debian/mosquitto-stretch.list
    sudo apt-get update
    sudo apt-get install mosquitto

    I look and study your link.



  • Eureka...eureka... Mosquitto works....
    Thanks to your contributions I have achieved what I wanted step by step.... for which I thank you.
    Indeed Mosquitto has worked in the beginning but I am expecting an opening window.
    Meanwhile, I have successfully send a message from the terminal window 1 to 2.
    Thanks to all who have taken the trouble to look at my question and send me a possible solution.
    See you later.
    JackDG


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