EMQX is the world's most scalable open-source MQTT broker with a high performance that connects 100M+ IoT devices in 1 cluster, while maintaining 1M message per second throughput and sub-millisecond latency. Configuration All EMQX Configuration in etc/emqx.conf can be configured via environment variables. By default, the environment variables with EMQX_ prefix are mapped to key-value pairs in configuration files. You can change the prefix by overriding HOCON_ENV_OVERRIDE_PREFIX. default login: admin:public