113
Ident
Medium RiskTCP — System & Infrastructure
Port Overview
Port Number
113
Service Name
Ident
Transport Protocol
TCP
Category
System & Infrastructure
Security Risk
Medium
Port Range
Well-Known (0-1023)
What is Port 113?
Identification Protocol (Auth). Identifies the user of a TCP connection. Historically used by IRC servers and mail servers to verify client identity.
TCP
System & Infrastructure
Security Considerations
Port 113 (Ident) is classified as medium risk. While this service is commonly exposed, consider using encrypted alternatives where available.
Recommendation: Keep the service updated. Monitor logs for unusual activity.