79
Finger
High RiskTCP — System & Infrastructure
Port Overview
Port Number
79
Service Name
Finger
Transport Protocol
TCP
Category
System & Infrastructure
Security Risk
High
Port Range
Well-Known (0-1023)
What is Port 79?
Finger protocol. Retrieves information about users on a remote system, including login name, real name, and login status. Disabled on most systems due to privacy concerns.
TCP
System & Infrastructure
Security Considerations
Port 79 (Finger) is classified as high risk. This port is a common target for automated scanning and brute-force attacks. If you must expose it, restrict access to known IP addresses.
Recommendation: Use firewall rules to whitelist trusted IPs. Enable rate limiting and intrusion detection.