What Is Meant by Ftp Port

Communication protocolPurposeFile transferPort(s)21 for control, 20 for data transferRFC(s)RFC 959

Why does FTP use 2 ports?

FTP is an old protocol. That’s really the only reason. The designers thought that the amount of data flowing over the data port would make it so that they couldn’t send control commands in a timely manner, so they did it as two ports.

What is port 21 used for FTP?

The FTP protocol typically uses port 21 as its main means of communication. An FTP server will listen for client connections on port 21. FTP clients will then connect to the FTP server on port 21 and initiate a conversation. This main connection is called the Control Connection or Command Connection.