← Port Encyclopedia
7
Echo
TCP/UDP
System
Low Risk
Echo protocol — reflects data back to sender, used for network testing and diagnostics
🔍 How to Scan Port 7
nmap -sV -p 7 target
nmap -sV -sC --script=banner -p 7 target
nc -zv target 7
🛡️ Security Considerations
- Scan port 7 with
nmap -sVto identify the exact service and version - If Echo is not needed, close or firewall this port immediately
- Check for default credentials if a management interface runs on this port
- Use
searchsploit echoto find known exploits - Monitor traffic on port 7 with Wireshark or tcpdump for anomalies
- Ensure the service is patched to the latest version to prevent known CVE exploitation