:403 (TCP/UDP)

DecAp

Low Risk

TCP/UDP — System & Infrastructure

Port Overview

Port Number 403
Service Name DecAp
Transport Protocol TCP/UDP
Category System & Infrastructure
Security Risk Low
Port Range Well-Known (0-1023)

What is Port 403?

DecAp protocol. Used by DEC (Digital Equipment Corporation) for application-level communication.

TCP/UDP System & Infrastructure

Security Considerations

Port 403 (DecAp) 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