The FTP port number allows you to exchange files between personal computers and remote servers. Special software tools called FTP clients are used to accomplish this task. The port number is usually set by the administrator. The default port number for FTP connection is port 21. You can check the port number on your computer by accessing the command prompt if you are using a Windows system or the
. terminal if you are using Mac OS or Linux. To access a port connection you will need to have to have login authorization that will need to be entered into the authorization fields of the FTP client. You will need two different ports, one for the FTP client and the other for the FTP server. The default port number for the FTP client is port 21 and the default port number for the FTP server is port 20. Once the FTP connection is established, there is a second connection made to the server by the client to start sending the data.
