If you have kafka version - 0.10.2, then adding only the 'listeners' is not enough and 'advertised.listeners' should also be added to the safety valve values for 'kafka.properties'. This is more of a requirement when we set the ip address as '0.0.0.0'. The advertised.listeners value would have the exact ip/hostname:port value.   This information is clearly mentioned at - http://kafka.apache.org/documentation.html#security_configbroker ... View more