What is FTP

FTP is the abbreviation of English file Transfer protocal, translated into Chinese is the meaning of "document Transfer Protocol".

FTP is one of the protocols in the TCP/IP protocol group and is a protocol for two-way transmission of control files on the Internet. At the same time, it is also an application. It allows users to connect their PCs to all the servers running FTP protocols around the world and access a large number of programs and information on the server. Recommended reading:FTP use command detailed

The FTP protocol, which is the basis for Internet file transfer, consists of a series of specification documents, with the goal of increasing file sharing, providing indirect use of remote computers, and making storage media transparent and reliable and efficient for users to transmit data. Simply put, FTP is a copy of two computers, copying files from a remote computer to its own computer, called a "download (download)" file. If you copy a file from your computer to a remote computer, it is called an upload (upload) file. In the TCP/IP protocol, the FTP standard command TCP port number is 21,port way data port is 20. The FTP protocol's task is to transfer files from one computer to another computer, regardless of where the two computers are located, how they are joined, or even whether they use the same operating system. If two computers are talking through the FTP protocol and have access to the Internet, you can use FTP commands to transfer files. There are some nuances in the use of each operating system, but the basic command structure for each protocol is the same.