1
TCPMUX
Medium RiskTCP — System & Infrastructure
Port Overview
Port Number
1
Service Name
TCPMUX
Transport Protocol
TCP
Category
System & Infrastructure
Security Risk
Medium
Port Range
Well-Known (0-1023)
What is Port 1?
TCP Port Service Multiplexer. Allows multiple services to share a single well-known port by routing connections based on the requested service name.
TCP
System & Infrastructure
Security Considerations
Port 1 (TCPMUX) 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.