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IPFYI
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540

UUCP

Low Risk

TCP — File Transfer

Port Overview

Port Number 540
Service Name UUCP
Transport Protocol TCP
Category File Transfer
Security Risk Low
Port Range Well-Known (0-1023)

What is Port 540?

Port 540 is assigned to UUCP (Unix-to-Unix Copy Protocol), one of the earliest Unix networking protocols. Completely obsolete.

TCP File Transfer

Security Considerations

Port 540 (UUCP) 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 — File Transfer

20 FTP Data 21 FTP Control 69 TFTP 82 XFER Utility 115 SFTP (Simple FTP) 117 UUCP Path 139 NetBIOS Session 152 BFTP
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