Edit bin/kafka-run-class.sh and set KAFKA_JMX_OPTS variable
KAFKA_JMX_OPTS="-Dcom.sun.management.jmxremote=true -Dcom.sun.management.jmxremote.authenticate=false -Dcom.sun.management.jmxremote.ssl=false -Djava.rmi.server.hostname=your.kafka.broker.hostname -Djava.net.preferIPv4Stack=true"
Update bin/kafka-server-start.sh add the below line
export JMX_PORT=PORT