533
netwall
Low RiskUDP — System & Infrastructure
Port Overview
Port Number
533
Service Name
netwall
Transport Protocol
UDP
Category
System & Infrastructure
Security Risk
Low
Port Range
Well-Known (0-1023)
What is Port 533?
Port 533 is assigned to netwall, used for emergency broadcast messaging across Unix network segments. Effectively obsolete.
UDP
System & Infrastructure
Security Considerations
Port 533 (netwall) 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.