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IPFYI
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542

commerce

Low Risk

TCP/UDP — Other

Port Overview

Port Number 542
Service Name commerce
Transport Protocol TCP/UDP
Category Other
Security Risk Low
Port Range Well-Known (0-1023)

What is Port 542?

Port 542 is assigned to 'commerce' in the IANA registry for commercial transaction processing. Never standardized; effectively unused.

TCP/UDP Other

Security Considerations

Port 542 (commerce) 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 — Other

43 WHOIS 63 Whois++ 104 DICOM 105 CCSO Nameserver 170 Network PostScript 200 IMPLink 201 AppleTalk 213 IPX
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