← Port Encyclopedia
243
Port-243
TCP
System Low Risk
Reserved or unassigned port 243 — may appear in network scans as open, closed, or filtered

🔍 How to Scan Port 243

nmap -sV -p 243 target
nmap -sV -sC --script=banner -p 243 target
nc -zv target 243

🛡️ Security Considerations

  • Scan port 243 with nmap -sV to identify the exact service and version
  • If Port-243 is not needed, close or firewall this port immediately
  • Check for default credentials if a management interface runs on this port
  • Use searchsploit port-243 to find known exploits
  • Monitor traffic on port 243 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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📍 Nearby Ports

Port 238
Port-238
Port 239
Port-239
Port 240
Port-240
Port 241
Port-241
Port 242
Port-242
Port 244
Port-244
Port 245
Port-245
Port 246
Port-246
Port 247
Port-247
Port 248
Port-248
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