← Port Encyclopedia
127
Port-127
TCP
System Low Risk
Reserved or unassigned port 127 — may appear in network scans as open, closed, or filtered

🔍 How to Scan Port 127

nmap -sV -p 127 target
nmap -sV -sC --script=banner -p 127 target
nc -zv target 127

🛡️ Security Considerations

  • Scan port 127 with nmap -sV to identify the exact service and version
  • If Port-127 is not needed, close or firewall this port immediately
  • Check for default credentials if a management interface runs on this port
  • Use searchsploit port-127 to find known exploits
  • Monitor traffic on port 127 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
Port 5
RJE
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Port 9
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systat
Port 13
Daytime
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QOTD
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Port 37
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Port 79
Finger
Port 111
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Ident

📍 Nearby Ports

Port 122
Port-122
Port 123
NTP
Port 124
Port-124
Port 125
Port-125
Port 126
Port-126
Port 128
Port-128
Port 129
Port-129
Port 130
Port-130
Port 131
Port-131
Port 132
Port-132
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