← Port Encyclopedia
540

UUCP

TCP
System Low Risk
Unix-to-Unix Copy — legacy file transfer between Unix systems

🔍 How to Scan Port 540

nmap -sV -p 540 target
nmap -sV -sC --script=banner -p 540 target
nc -zv target 540

🛡️ Security Considerations

  • Scan port 540 with nmap -sV to identify the exact service and version
  • If UUCP is not needed, close or firewall this port immediately
  • Check for default credentials if a management interface runs on this port
  • Use searchsploit uucp to find known exploits
  • Monitor traffic on port 540 with Wireshark or tcpdump for anomalies
  • Ensure the service is patched to the latest version to prevent known CVE exploitation

🔗 Related System Ports

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TCPMUX
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Discard
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systat
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Daytime
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QOTD
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Chargen
Port 37
Time
Port 79
Finger
Port 111
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Ident

📍 Nearby Ports

Port 535
Port-535
Port 536
Port-536
Port 537
Port-537
Port 538
Port-538
Port 539
Port-539
Port 541
Port-541
Port 542
Port-542
Port 543
Klogin
Port 544
Kshell
Port 545
Port-545
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