I am running Mosquitto Broker on AWS Ubuntu 20.04.2 LTS server. I have 2 MQTT bridges, from my laptop to the broker on the server and from the server to AWS IoT.
My broker configuration on the server is as follows:
listener 1883
protocol mqtt
listener 9001
protocol websockets
allow_anonymous false
password_file /etc/mosquitto/conf.d/passwd.txt
connection awsiot
address xxxxxxxxxx-ats.iot.eu-north-1.amazonaws.com:8883
topic iotethernet/switch/count out 1
topic iotethernet/ledblock/states in 1
bridge_protocol_version mqttv311
bridge_insecure false
bridge_outgoing_retain false
cleansession true
clientid bridgeawsiot
start_type automatic
notifications true
log_type all
bridge_cafile /etc/mosquitto/certs/rootCA.pem
bridge_certfile /etc/mosquitto/certs/cert.crt
bridge_keyfile /etc/mosquitto/certs/private.key
The problem is that when I am running the server, the bridge client constantly connects and immediately disconnects without an error message.
I have made sure that the bridge doesn't work by testing with the AWS IoT -test feature.
The bridge from laptop to server works fine.