← Port Encyclopedia
931
Port-931
TCP
System Low Risk
Reserved or unassigned port 931 — may appear in network scans as open, closed, or filtered

🔍 How to Scan Port 931

nmap -sV -p 931 target
nmap -sV -sC --script=banner -p 931 target
nc -zv target 931

🛡️ Security Considerations

  • Scan port 931 with nmap -sV to identify the exact service and version
  • If Port-931 is not needed, close or firewall this port immediately
  • Check for default credentials if a management interface runs on this port
  • Use searchsploit port-931 to find known exploits
  • Monitor traffic on port 931 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 926
Port-926
Port 927
Port-927
Port 928
Port-928
Port 929
Port-929
Port 930
Port-930
Port 932
Port-932
Port 933
Port-933
Port 934
Port-934
Port 935
Port-935
Port 936
Port-936
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