← Port Encyclopedia
540
UUCP
TCP
System
Low Risk
Unix-to-Unix Copy — legacy file transfer between Unix systems
🔍 How to Scan Port 540
nmap -sV -p 540 target
nmap -sV -sC --script=banner -p 540 target
nc -zv target 540
🛡️ Security Considerations
- Scan port 540 with
nmap -sVto identify the exact service and version - If UUCP is not needed, close or firewall this port immediately
- Check for default credentials if a management interface runs on this port
- Use
searchsploit uucpto find known exploits - Monitor traffic on port 540 with Wireshark or tcpdump for anomalies
- Ensure the service is patched to the latest version to prevent known CVE exploitation