← Port Encyclopedia
71
Port-71
TCP
System Low Risk
Reserved or unassigned port 71 — may appear in network scans as open, closed, or filtered

🔍 How to Scan Port 71

nmap -sV -p 71 target
nmap -sV -sC --script=banner -p 71 target
nc -zv target 71

🛡️ Security Considerations

  • Scan port 71 with nmap -sV to identify the exact service and version
  • If Port-71 is not needed, close or firewall this port immediately
  • Check for default credentials if a management interface runs on this port
  • Use searchsploit port-71 to find known exploits
  • Monitor traffic on port 71 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 66
Port-66
Port 67
DHCP-Server
Port 68
DHCP-Client
Port 69
TFTP
Port 70
Gopher
Port 72
Port-72
Port 73
Port-73
Port 74
Port-74
Port 75
Port-75
Port 76
Port-76
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