← Port Encyclopedia
789

Port-789

TCP
System Low Risk
Reserved or unassigned port 789 — may appear in network scans as open, closed, or filtered

🔍 How to Scan Port 789

nmap -sV -p 789 target
nmap -sV -sC --script=banner -p 789 target
nc -zv target 789

🛡️ Security Considerations

  • Scan port 789 with nmap -sV to identify the exact service and version
  • If Port-789 is not needed, close or firewall this port immediately
  • Check for default credentials if a management interface runs on this port
  • Use searchsploit port-789 to find known exploits
  • Monitor traffic on port 789 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 784
Port-784
Port 785
Port-785
Port 786
Port-786
Port 787
Port-787
Port 788
Port-788
Port 790
Port-790
Port 791
Port-791
Port 792
Port-792
Port 793
Port-793
Port 794
Port-794
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