Setup an MQTT Broker (EMQX)

At this moment there is no Windows procedure. Here the instructions for a Linux based O.S. First, donwload the required repostories. other distributions

wget https://www.emqx.io/downloads/broker/v4.1.0/emqx-ubuntu18.04-v4.1.0.zip
unzip emqx-ubuntu18.04-v4.1.0.zip

By default, the system will use the following ports. However, some of the following are being used by Hornet.

• Port 1883 /TCP: MQTT
• Port 11883 /TCP: MQTT only used for local client connection
• Port 8883 /TCP: MQTT with SSL connection
• Port 8083 / TCP: MQTT Web Socket
• Port 8084 /TCP: MQTT Web Socket with SSL
• Port 18083 / TCP: HTTP Dashboar
• Port 8081 / TCP: HTTP Magnament Console

We proceed to modify the necessary ports

nano /emqx/etc/emqx.conf

Look up for the line with port 8083 and replace it by 8093; also, modify the line with port 8084 by 8094

Then we go to the magnament file

nano /emqx/etc/plugins/emqx_management.conf

Replace the line with port 8081 by 8090 Updated ports:

• Port 1883 /TCP: MQTT
• Port 11883 /TCP: MQTT only used for local client connection
• Port 8883 /TCP: MQTT with SSL connection
• Port 8093 / TCP: MQTT Web Socket
• Port 8094 /TCP: MQTT Web Socket with SSL
• Port 18083 / TCP: HTTP Dashboar
• Port 8090 / TCP: HTTP Magnament Console

If you are running the Broker on a VPS or hosting, adjust it to modify the listed ports.

Then we go to the emqx folder

cd /emqx

From this folder we execute

./bin/emqx start

After opening the corresponding ports in the firewall, then go to http://www.yourdomain:18083

• Usename: admin
• Password: public

Don't forget to change the default password.