← Port Encyclopedia
47
Port-47
TCP
System Low Risk
Reserved or unassigned port 47 — may appear in network scans as open, closed, or filtered

🔍 How to Scan Port 47

nmap -sV -p 47 target
nmap -sV -sC --script=banner -p 47 target
nc -zv target 47

🛡️ Security Considerations

  • Scan port 47 with nmap -sV to identify the exact service and version
  • If Port-47 is not needed, close or firewall this port immediately
  • Check for default credentials if a management interface runs on this port
  • Use searchsploit port-47 to find known exploits
  • Monitor traffic on port 47 with Wireshark or tcpdump for anomalies
  • Ensure the service is patched to the latest version to prevent known CVE exploitation

🔗 Related System Ports

Port 1
TCPMUX
Port 5
RJE
Port 7
Echo
Port 9
Discard
Port 11
systat
Port 13
Daytime
Port 17
QOTD
Port 19
Chargen
Port 37
Time
Port 79
Finger
Port 111
RPCbind
Port 113
Ident

📍 Nearby Ports

Port 42
WINS
Port 43
WHOIS
Port 44
Port-44
Port 45
Port-45
Port 46
Port-46
Port 48
Port-48
Port 49
TACACS
Port 50
Port-50
Port 51
Port-51
Port 52
Port-52
📚 Learn Network Scanning — Free Course