The Mosquitto service acts as an MQTT broker for smart home devices. It runs at 10.1.1.18.
apt-get install mosquitto mosquitto-clientsmosquitto: mosquitto_passwd -c /etc/mosquitto/passwd mosquitto and enter desired password twice./etc/mosquitto/conf.d/default.conf:
allow_anonymous false
password_file /etc/mosquitto/passwd
systemctl restart mosquittoThe username is set to mosquitto and the password is documented in 1Password.