← Port Encyclopedia
456
Port-456
TCP
System Low Risk
Reserved or unassigned port 456 — may appear in network scans as open, closed, or filtered

🔍 How to Scan Port 456

nmap -sV -p 456 target
nmap -sV -sC --script=banner -p 456 target
nc -zv target 456

🛡️ Security Considerations

  • Scan port 456 with nmap -sV to identify the exact service and version
  • If Port-456 is not needed, close or firewall this port immediately
  • Check for default credentials if a management interface runs on this port
  • Use searchsploit port-456 to find known exploits
  • Monitor traffic on port 456 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 451
Port-451
Port 452
Port-452
Port 453
Port-453
Port 454
Port-454
Port 455
Port-455
Port 457
Port-457
Port 458
Port-458
Port 459
Port-459
Port 460
Port-460
Port 461
Port-461
📚 Learn Network Scanning — Free Course