:33
(TCP/UDP)
DSP
Low RiskTCP/UDP — System & Infrastructure
On this page
Port Overview
Port Number
33
Service Name
DSP
Transport Protocol
TCP/UDP
Category
System & Infrastructure
Security Risk
Low
Port Range
Well-Known (0-1023)
What is Port 33?
Display Support Protocol. An early protocol for remote display support, allowing graphical output to be sent to remote terminals.
TCP/UDP
System & Infrastructure
Security Considerations
Port 33 (DSP) 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.