← Port Encyclopedia
11
systat
TCP
System Medium Risk
Active users protocol — can leak system user information to attackers

🔍 How to Scan Port 11

nmap -sV -p 11 target
nmap -sV -sC --script=banner -p 11 target
nc -zv target 11

🛡️ Security Considerations

  • Scan port 11 with nmap -sV to identify the exact service and version
  • If systat is not needed, close or firewall this port immediately
  • Check for default credentials if a management interface runs on this port
  • Use searchsploit systat to find known exploits
  • Monitor traffic on port 11 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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📍 Nearby Ports

Port 6
Port-6
Port 7
Echo
Port 8
Port-8
Port 9
Discard
Port 10
Port-10
Port 12
Port-12
Port 13
Daytime
Port 14
Port-14
Port 15
Port-15
Port 16
Port-16
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