In a typical FTP session, the user is sitting in front of one host (the local host) and wants to transfer files to or from a remote host. In order for the user to access the remote account, the user must provide a user identification and a password. After providing this authorization information, the user can transfer files from the local file system to the remote file system and vice versa. The user interacts with FTP through an FTP user agent. The user first provides the hostname of the remote host, causing the FI’P client process in the local host to establish a TCP connection with the FTP server process in the remote host. The user then provides the user identification and password, which an sent over the TCP connection as part of FTP commands. Once the server has authorized the user, the user copies one or more files stored in the local file system into the remote tile system (or vice versa). » Read more: What is File Transfer Protocol: FTP