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This article will explain in detail what the FTP protocol is, and the content of the article is of high quality, so the editor will share it for you as a reference. I hope you will have a certain understanding of the relevant knowledge after reading this article.

The FTP protocol is a protocol used to transfer files. FTP protocol is one of the protocols in TCP/IP protocol group. FTP protocol consists of two components, one is FTP server, the other is FTP client. By default, the FTP protocol uses ports 20 and 21 of the TCP ports.

The FTP protocol is a protocol used to transfer files.

Related introduction:

FTP protocol

FTP (File Transfer Protocol, File transfer Protocol) is one of the protocols in the TCP/IP protocol group. The FTP protocol consists of two components, one is the FTP server and the other is the FTP client. The FTP server is used to store files, and users can use the FTP client to access the resources located on the FTP server through the FTP protocol.

When developing a website, the FTP protocol is usually used to upload the web page or program to the Web server. In addition, because of the high transmission efficiency of FTP, this protocol is generally used when transferring large files on the network.

By default, the FTP protocol uses ports 20 and 21 of the TCP ports, where 20 is used to transmit data and 21 is used to transmit control information.

However, whether to use 20 as the port for data transmission is related to the transmission mode used by FTP, if the active mode is used, then the data transfer port is 20; if the passive mode is adopted, it is up to the server and the client to decide which port to use.

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