← Port Encyclopedia
261

Port-261

TCP
System Low Risk
Reserved or unassigned port 261 — may appear in network scans as open, closed, or filtered

🔍 How to Scan Port 261

nmap -sV -p 261 target
nmap -sV -sC --script=banner -p 261 target
nc -zv target 261

🛡️ Security Considerations

  • Scan port 261 with nmap -sV to identify the exact service and version
  • If Port-261 is not needed, close or firewall this port immediately
  • Check for default credentials if a management interface runs on this port
  • Use searchsploit port-261 to find known exploits
  • Monitor traffic on port 261 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
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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 256
Port-256
Port 257
Port-257
Port 258
Port-258
Port 259
Port-259
Port 260
Port-260
Port 262
Port-262
Port 263
Port-263
Port 264
BGMP
Port 265
Port-265
Port 266
Port-266
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