:8883
(TCP)
Low Risk
MQTT over TLS
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TCP — Messaging
Port Overview
Port Number
8883
Service Name
MQTT over TLS
Transport Protocol
TCP
Category
Messaging
Security Risk
Low
Port Range
Registered (1024-49151)
What is Port 8883?
MQTT over TLS/SSL. Encrypted version of MQTT (port 1883) for secure IoT device communication and machine-to-machine messaging.
TCP
Messaging
Commonly Used
Security Considerations
Port 8883 (MQTT over TLS) is classified as low risk. This service uses encryption or has a minimal attack surface, making it relatively safe to expose.
Recommendation: Standard security practices apply. Keep software updated and monitor access.