:522 (TCP/UDP)

ULP

Low Risk

TCP/UDP — System & Infrastructure

Port Overview

Port Number 522
Service Name ULP
Transport Protocol TCP/UDP
Category System & Infrastructure
Security Risk Low
Port Range Well-Known (0-1023)

What is Port 522?

User Listener Protocol. Used for user-level event listening and notification services.

TCP/UDP System & Infrastructure

Security Considerations

Port 522 (ULP) 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.

Related Ports — System & Infrastructure

Related Terms