Port 8883

Q: What is port 8883?

MQTT over TLS — encrypted IoT messaging Port 8883 is used for MQTT over TLS, the encrypted version of MQTT (port 1883). It is recommended for any IoT deployment using MQTT, especially devices communicating over the public internet. TLS provides both encryption and mutual authentication with client certificates, preventing unauthorized devices from connecting to the broker.

MQTT-TLS

MQTT over TLS — encrypted IoT messaging

Port

8883

Protocol

TCP

Service

MQTT-TLS

Security

Safe

Full name: MQTT over TLS/SSL

What is port 8883?

Port 8883 is used for MQTT over TLS, the encrypted version of MQTT (port 1883). It is recommended for any IoT deployment using MQTT, especially devices communicating over the public internet. TLS provides both encryption and mutual authentication with client certificates, preventing unauthorized devices from connecting to the broker.

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