What is FTP?

The File Transfer Protocol (FTP) is a simple communication protocol for transferring files between a computer and a server over the Internet

what is ftp

The File Transfer Protocol (FTP) is a protocol for transferring files between a client and a server over the Internet using Transmission Control Protocol/Internet Protocol (TCP/IP)

FTP stands for File Transfer Protocol. This protocol allows you to transfer files from one computer to another across a network, such as the Internet. It is typically used by programmers and website designers when they want to upload or download web pages, scripts, images, and other content that make up a website. FTP can also be used by general users who want to download large files from the internet onto their computers.

FTP stands for “File Transfer Protocol,” and it is a way to transfer files over the internet. FTP servers are used by web developers, designers, and other IT professionals when they need to upload or download content from their website's server. This blog post will walk you through the basics of using an FTP client like FileZilla as well as some tips on how to use it effectively.

FTP stands for File Transfer Protocol. It is a protocol that allows you to transfer files from one computer to another over the internet using a secure connection. FTP can be used with web hosting providers, or it can also be installed on your own personal computer if you have an internet connection and need to upload large files onto your website. FTP is a protocol, or set of rules and guidelines, used to exchange files between two computers over the internet.

How does it work?

how ftp works

FTP, in simple language File Transfer Protocol, is used to transfer files from one device to another over an internet connection.

It's a process that is done in two stages when communicating with the FTP server.

First when the client establishes a connection with FTP Server then the Client sends the command to Server for Login authentication. For example when a user wants to access his FTP account then he will authenticate it by providing the username and password of that mail id

The server checks whether this username/password pair exists or not on its database if yes then the user gets authorized and hence able to use the resources available at the FTP server and move files between the local computer and remote FTP server using various commands like put, get, etc. If there is no match then you will receive a message ” unauthorized” and you can not access the folder of the remote FTP server.

Two types of communication channel

1) Control connection (most important communication channel ) which is used to provide authentication information and transfer user commands like put, get, etc.

2) Data Connection(Least important communication channel) initially control connection made between FTP client and FTP server for file transfers data connection established on-demand only when FTP client wants to download or upload a file from/to FTP Server

That means if we talk about n number of files then the first n-1 connections will be control connection and the last one will be Data connection. Note: When we say Connection it means three things Username, Password, Control connection.

Is Google Drive an FTP? 

ftp

When I write a blog post in the WordPress Admin console, a copy is made in my Google Drive. So when I ran this statement: “SELECT * FROM wp_posts WHERE ID=12;” in MySQL Workbench it returned an error message. Google Drive couldn't handle the file and I had to install “Google Drive” on my computer.

But Google Drive is not a database. It's just a virtual drive that has some files in it. Then I looked for an FTP client so I could transfer the WordPress blog from my web hosting company to Amazon S3 storage and after testing two clients, Cyberduck and Transmit, I settled for Cyberduck for its lower price point of $24.99 versus $59 .99 for Transmit.

Is FTP Secure?

There are many reasons why FTP is the worst possible choice for transferring files. It lacks authentication, which allows anyone to log in with any username or password combination on almost all FTP servers. A good example of this problem was found in some embedded devices. This allowed us to download their full configuration file, which included some sensitive information like administrator passwords, Wi-Fi keys, and so on. FTP Secure Sockets Layer is also referred to on the web browsers.

Since FTP is unencrypted, you can capture passwords while they fly through network packets if your computer is between the sender and receiver. Once an attacker obtains a user's password from one site, he or she can then connect to any other server that also uses the same credentials without ever needing a new account – by simply typing the obtained login and password into his or her FTP clients.

Login credentials are never secure on an FTP web server, regardless of the strength of your password. Coupled with the lack of encryption, this means that all data transfers are completely exposed to potential eavesdropping by anyone who might be running software to monitor traffic on your network. Even if you use SSL/TLS for file transfer security – using FTPS instead of plain FTP – many implementations have vulnerabilities that allow attackers to run man-in-the-middle attacks and strip away this added layer of protection. The FTP file transfer protocol offers a passive mode to transfer data reliably. That's a secure file transfer.

It is faster than SFTP?

SFTP (or SSH File Transfer Protocol, or Secure File Transfer Protocol) is the secure version of FTP.

Amazon Web Services (AWS) reserves the right to proactively migrate any publicly accessible object to a secure, encrypted S3 bucket. It was not long ago when one of our users reported to us that his AWS backup storage was publicly accessible so we decided to investigate this issue further. The investigation showed that tens of thousands of other AWS customers have misconfigured their backups services in a similar fashion and so your data may be at risk too!

Does FTP use TLS?

The Internet Engineering Task Force (IETF) has published an informational document on the use of TLS with FTP. This document, “Use of TLS with FTP”, provides some clarification on how to deploy and use Transport Layer Security (TLS) in conjunction with the File Transfer Protocol (FTP).

The IETF is promoting security on all fronts; one way to further this goal is to provide clear guidelines for using protocols that currently lack good guidance. While many protocols already have strong authentication or encryption mechanisms built into them, several new application-layer protocols are entering service without these capabilities. It is expected that additional information will be written up as a proposed standard to simplify the deployment of strong authentication options across all network applications rather than just tying specific applications down to specific mechanisms.

Conclusion

FTP stands for File Transfer Protocol. It is the protocol that allows files to be transferred over an internet connection. FTP software is one of the most popular ways to upload and download web content, such as websites and images. FTP typically uses TCP port 21, but if the server is set up with no anonymous access, it will use a different one (by default, 2121).  Popular applications for FTP are to upload files or download files for archival or the sharing of files too large for email. 

References

https://en.wikipedia.org/wiki/File_Transfer_Protocol

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