← Port Encyclopedia
489

Port-489

TCP
System Low Risk
Reserved or unassigned port 489 — may appear in network scans as open, closed, or filtered

🔍 How to Scan Port 489

nmap -sV -p 489 target
nmap -sV -sC --script=banner -p 489 target
nc -zv target 489

🛡️ Security Considerations

  • Scan port 489 with nmap -sV to identify the exact service and version
  • If Port-489 is not needed, close or firewall this port immediately
  • Check for default credentials if a management interface runs on this port
  • Use searchsploit port-489 to find known exploits
  • Monitor traffic on port 489 with Wireshark or tcpdump for anomalies
  • Ensure the service is patched to the latest version to prevent known CVE exploitation

🔗 Related System Ports

Port 1
TCPMUX
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RJE
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Echo
Port 9
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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Port 113
Ident

📍 Nearby Ports

Port 484
Port-484
Port 485
Port-485
Port 486
Port-486
Port 487
Port-487
Port 488
Port-488
Port 490
Port-490
Port 491
Port-491
Port 492
Port-492
Port 493
Port-493
Port 494
Port-494
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