MQTT Mosquitto bridging configuration

Question

I am trying to bridge my mosquitto broker running in raspberry pi to the cloud Mosquitto mqtt broker(test.mosquitto.org:1883).

I am not getting message in my client connected to the local broker, When I publish from a client connected to the cloud broker. But I am getting messages on the client connected to the cloud mosquitto broker from the client connected to the local MQTT Broker. I don't have any firewalls to block messages.

my mosquitto.conf file is like this

connection bridge-01
address test.mosquitto.org:1883
topic # out 0
topic # in 0

And I also have

listener 1883
allow_anonymous true

in my config

How to solve this issue?. Where am I going wrong??

Answer 1

Global wildcard subscriptions (subscribing to # ) is disabled on the test.mosquitto.org broker because it generates too much load.

eg

$ mosquitto_sub -h test.mosquitto.org -v -t '#' 
All subscription requests were denied.

You can change the topic # in 0 line to only pull in the topics you are using.

Please also remember this broker is only really meant for testing, you should not be using it as a free cloud relay for anything long term.