56
XNS-AUTH
Medium RiskTCP/UDP — Security & VPN
Port Overview
Port Number
56
Service Name
XNS-AUTH
Transport Protocol
TCP/UDP
Category
Security & VPN
Security Risk
Medium
Port Range
Well-Known (0-1023)
What is Port 56?
XNS Authentication. Provides authentication services within the Xerox Network Systems (XNS) protocol suite.
TCP/UDP
Security & VPN
Security Considerations
Port 56 (XNS-AUTH) 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.