17
QOTD
Low RiskTCP/UDP — System & Infrastructure
Port Overview
Port Number
17
Service Name
QOTD
Transport Protocol
TCP/UDP
Category
System & Infrastructure
Security Risk
Low
Port Range
Well-Known (0-1023)
What is Port 17?
Quote of the Day protocol. Sends a short text message (typically a quote or saying) to the connecting client. Used mainly for testing.
TCP/UDP
System & Infrastructure
Commonly Used
Security Considerations
Port 17 (QOTD) 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.