# Listen on localhost interface.
bind_address localhost

# Internet listener witch SSL encryption.
listener 1883 <public IP address>
cafile <cafile>
certfile <certfile>
keyfile <keyfile>

# listen on VPN interface. Uncomment this to make mosquitto listen on your VPN interface. 
#listener 1883 <VPN tunnel address>

# User authentication.
password_file <password file>
allow_anonymous false