:189
(TCP/UDP)
QFT
Low RiskTCP/UDP — File Transfer
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Port Overview
Port Number
189
Service Name
QFT
Transport Protocol
TCP/UDP
Category
File Transfer
Security Risk
Low
Port Range
Well-Known (0-1023)
What is Port 189?
Queued File Transport. A protocol for reliable queued file transfer between systems with store-and-forward capability.
TCP/UDP
File Transfer
Security Considerations
Port 189 (QFT) 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.