File Transfer Protocol control channel. Manages FTP connections and commands.
Test it now with our Port Scanner
| Port | 21 |
|---|---|
| Service | FTP Control |
| Protocol | TCP |
| Encrypted | No |
| Common Use | File Transfer Protocol control channel |
Online: Use our Port Scanner — enter your IP and port 21.
Command line:
nc -zv your-server-ip 21 (Mac/Linux)
Test-NetConnection -ComputerName your-server-ip -Port 21 (PowerShell)
Check locally:
ss -tlnp | grep :21 (Linux) netstat -an | findstr :21 (Windows)