← Port Encyclopedia
171
Port-171
TCP
System Low Risk
Reserved or unassigned port 171 — may appear in network scans as open, closed, or filtered

🔍 How to Scan Port 171

nmap -sV -p 171 target
nmap -sV -sC --script=banner -p 171 target
nc -zv target 171

🛡️ Security Considerations

  • Scan port 171 with nmap -sV to identify the exact service and version
  • If Port-171 is not needed, close or firewall this port immediately
  • Check for default credentials if a management interface runs on this port
  • Use searchsploit port-171 to find known exploits
  • Monitor traffic on port 171 with Wireshark or tcpdump for anomalies
  • Ensure the service is patched to the latest version to prevent known CVE exploitation

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📍 Nearby Ports

Port 166
Port-166
Port 167
Port-167
Port 168
Port-168
Port 169
Port-169
Port 170
Port-170
Port 172
Port-172
Port 173
Port-173
Port 174
Port-174
Port 175
Port-175
Port 176
Port-176
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