Option 1
pid_file /run/mosquitto/mosquitto.pid
allow_anonymous true
persistence true
persistence_location /var/lib/mosquitto/
log_dest file /var/log/mosquitto/mosquitto.log
include_dir /etc/mosquitto/conf.d
# PENTING!
bind_interface bond0
Option 2
persistence true
persistence_location /var/lib/mosquitto/
persistence_file mosquitto.db
log_dest syslog
log_dest stdout
log_dest topic
log_type error
log_type warning
log_type notice
log_type information
connection_messages true
log_timestamp true
allow_anonymous true
password_file /etc/mosquitto/passwd
# PENTING!
bind_interface bond0