What is FTP port and why is it needed?

Posted by Anend on March 24th, 2020

If you sort everything out, then everything is extremely simple. The computer operating system has a certain limited number of ports. They are needed so that programs can connect to them through the network. This is done so that applications do not conflict with each other during an attempt to connect to the network. A port is just a digit of the transport protocol. It can be compared with the track. If all programs run on the same “track”, then a traffic jam will quickly form on it. Therefore, for each application, a unique port must be allocated - that is, a number that is not yet occupied by other programs.

Developers of operating systems have long been using this method of distributing programs according to numbered protocols, and it has proven itself well. After all, there are more than six thousand ports, which is enough for any computer. FTP is the data transfer protocol, necessary for the customer and server to quickly exchange various files. Such a protocol is convenient for those people who do not care about the web-interface of the store, but who appreciate the download speed and the number of files that can be stored on the server. There is no better way to exchange voluminous data than through the FTP protocol. And this protocol works through the TCP channel. And in order to connect to this channel, you need a specific port. That is, to open the server, the client must go to the FTP port, and through it go to the host. This is the whole point of port for FTP.