Messaging & IoT ports

Message brokers and IoT protocols — MQTT, AMQP, NATS, Kafka, ActiveMQ, CoAP and coordination services.

12 ports in this category

Port	Service	Transport
1883	MQTT	tcp
2181	Apache ZooKeeper	tcp
4222	NATS messaging	tcp
5671	AMQPS (AMQP over TLS)	tcp
5672	AMQP (RabbitMQ)	tcp
5683	CoAP (Constrained Application Protocol, IoT)	udp
5684	CoAPS (CoAP over DTLS)	udp
8161	Apache ActiveMQ web console	tcp
8883	MQTT over TLS	tcp
9092	Apache Kafka	tcp
61613	STOMP (ActiveMQ)	tcp
61616	ActiveMQ OpenWire	tcp

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