← Port Encyclopedia
239

Port-239

TCP
System Low Risk
Reserved or unassigned port 239 — may appear in network scans as open, closed, or filtered

🔍 How to Scan Port 239

nmap -sV -p 239 target
nmap -sV -sC --script=banner -p 239 target
nc -zv target 239

🛡️ Security Considerations

  • Scan port 239 with nmap -sV to identify the exact service and version
  • If Port-239 is not needed, close or firewall this port immediately
  • Check for default credentials if a management interface runs on this port
  • Use searchsploit port-239 to find known exploits
  • Monitor traffic on port 239 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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RJE
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Echo
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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
RPCbind
Port 113
Ident

📍 Nearby Ports

Port 234
Port-234
Port 235
Port-235
Port 236
Port-236
Port 237
Port-237
Port 238
Port-238
Port 240
Port-240
Port 241
Port-241
Port 242
Port-242
Port 243
Port-243
Port 244
Port-244
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