FTP Client

FTP Client

FTP Client is a computer / device that requests data exchange services to FTP servers. After connecting to an FTP server, FTP clients can download, upload and so on according to the permission given by the previous FTP server. Most FPT Clients choose to use a passive connection by default, because the server admin considers this to be safer. By using a passive connection, all connections starting from the outside will be directly blocked. With passive mode, it is the FTP Client that requests the server to make a connection.

Some examples of FTP clients include coreFTP (Windows), FileZilla (Windows), cuteFTP (Windows), and CyberDuck (Mac). Actually, FTP Client is just an application or tool that can be used to access FTP. There are other tools that can also be used to access FTP, including:

Web browser: Even though it's not really recommended, you can actually use FTP in most web browsers. HTML Editor: For example Adobe Dreamweaver can connect with FTP so that computer users can directly edit websites on web servers. File Explorer: You can also access FTP through File Explorer (or Windows Explorer) by first typing in the FTP server address.

Download FTP Client Function

FTP Client has many functions or benefits that are beneficial for users, for example:
  1. We can easily exchange files between computers, even though the file has a large size.
  2. For website owners, with FTP, they can easily backup their website.
  3. We can do indirect and implicit remote computers.
  4. FTP provides reliable and efficient data transfer, because each user does not require complex steps to obtain a file or transfer a file.
  5.  FTP facilitates each user to transfer data in two directions. That is, if FTP is used in a company, then each company leader is able to send files to his employees and vice versa, using the same server.
  6. The progress of data transfer will not be lost even if the connection is lost.
  7. Transer data / files can be done easily and organized.

Besides having great benefits in exchanging data, FTP also has several disadvantages, for example:

The FTP system is quite old, if someone doesn't have an IT background for people who are not familiar with the IT world, it will be a little difficult to use it. If users don't really know about FTP, it's very easy to delete all data with a single click. Cannot change ownership of a file. Not so safe as a data transfer media because of the absence of encryption, except when using alternatives such as SFTP. If you want to have your own FTP server, you must have your own server computer or rent a server at a cost that is not cheap.

How to Work FTP Client

The only method used by FTP Client is the standard authentication method, where a username and password are needed to access the data on the FTP server. Registered users (have a username and password) have full access to several directories and files that are in it so that registered users can create, copy, move or even delete these directories.

For how it works, in general, the FTP client must first request a connection to the FTP server, if it is connected to an FTP server, the FTP client can exchange data such as uploading and downloading data. FTP Client can work in active mode and passive mode, which determines how data connections are formed. In both modes, the client creates a TCP control from port N to FTP server port 21.

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In active mode, the client starts listening to the data connection coming from the server on port M. Then the client sends an FTP Client the command port M to inform the server which port to listen to. The server then initiates channel data to the client from port 20 / FTP server port. In situations where the client is behind a firewall and is unable to accept the incoming TCP connection, passive mode can be used. In that mode, the client uses connection control to send the PASV command to the server, then receives the server's IP address, server address, and server port number.

Network traffic: FTP or SFTP encrypts network traffic using SSL / TLS / SSH, while all three applications can only encrypt using SSL / TLS. File existence: In FTP, a file cannot be deleted using a computer or electronic device other ronics missing. While all three applications, files can be deleted from lost devices using remote delete.

Two-step verification: For FTP, you need third-party software to do 2-step verification, while in those three applications there are already two-step verification features and you can use them at any time without the need to install third-party software. Server: If the FTP server must be secured and maintained by an IT expert, in all three applications, the user does not need to worry about server security and maintenance (everything is set up by the corresponding FTP Client application).