Standard FTP Ports
Port 21 - Command port where clients connect and send instructions to the FTP server
Secure FTP Ports
Port 21Â - Used for FTPS (FTP with SSL/TLS encryption)
Using FTP Clients
If you're using FileZilla, Cyberduck, or similar FTP clients, simply enter port 21 in the port field to connect to a standard FTP server.
