← Port Encyclopedia
87
Port-87
TCP
System Low Risk
Reserved or unassigned port 87 — may appear in network scans as open, closed, or filtered

🔍 How to Scan Port 87

nmap -sV -p 87 target
nmap -sV -sC --script=banner -p 87 target
nc -zv target 87

🛡️ Security Considerations

  • Scan port 87 with nmap -sV to identify the exact service and version
  • If Port-87 is not needed, close or firewall this port immediately
  • Check for default credentials if a management interface runs on this port
  • Use searchsploit port-87 to find known exploits
  • Monitor traffic on port 87 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 82
HTTP-Alt
Port 83
HTTP-Alt
Port 84
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Port 85
Port-85
Port 86
Port-86
Port 88
Kerberos
Port 89
Port-89
Port 90
Port-90
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Port 92
Port-92
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