← Port Encyclopedia
631
IPP
TCP
Printing
Medium Risk
Internet Printing Protocol — CUPS printing, printer exploitation
🔍 How to Scan Port 631
nmap -sV -p 631 target
nmap -sV -sC --script=banner -p 631 target
nc -zv target 631
🛡️ Security Considerations
- Scan port 631 with
nmap -sVto identify the exact service and version - If IPP is not needed, close or firewall this port immediately
- Check for default credentials if a management interface runs on this port
- Use
searchsploit ippto find known exploits - Monitor traffic on port 631 with Wireshark or tcpdump for anomalies
- Ensure the service is patched to the latest version to prevent known CVE exploitation