Everything FTP

All You Need to Know About FTP’s

SFTP (SSH File Transfer Protocol) vs. FTPS (FTP over SSL) Part 2


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X.509 certificates include certain information about the certificate owner and the public key. This information will allow the other side to verify the authenticity of the certificate owner and the integrity of the certificate itself. The verification can be done by humans, with the help of a computer. X.509 certificate has a private key, which is normally stored separately from the certificate for security reasons.

Since the associated key is stored separately, the SSH key contains a public key only. It does not contain any information about the key owner. Neither does it contain information that will let one reliably validate the authenticity and integrity.

SFTP (SSH File Transfer Protocol) vs. FTPS (FTP over SSL) Part 1


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SFTP is a binary protocol, and the latest version is standardized in RFC 4253. All the requests of commands are already packed to binary messages and sent over to the server, which is replying with binary reply packets. In its later versions, SFTP has been extended to provide not just the download/upload operations, but some file-system operations such as symbolic link creation and file lock etc.

Both SFTP and FTPS use asymmetric algorithm as a combination (RSA, DSA), key-exchange algorithm, and symmetric algorithm (DES/3DES, AES, Twhofish etc). FTPS (or SSL/TLS protocol under FTP) uses certificates of X.509 while SFTP (SSH protocol) uses keys of SSH for authentication.

Connection Methods


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FTP runs exclusively through TCP. The servers of FTP by default listen to port 21 for incoming connections from the clients of FTP. From FTP client, a connection to this port forms the control stream on which the commands are passed from the FTP client to the FTP server, and on certain occasions from the FTP server to the FTP client. It uses out-of-band control. This means that it uses a separate connection for data and control. Therefore, a different connection is required for the actual file transfer to take place, which is called the data stream. The process of setting up the data stream is different depending on the transfer mode.

The Client/Server Relationship

Though FTP is a straightforward facility to transfer files through the internet easily, without much fuss it is dependent on several factors that makes the process possible. First, you need a client software that can be installed for uploading and downloading, allowing your desktop to take on the same plane as the server that is handling the file distribution. The said “SERVER” may be a simple desktop too but is the so-called traffic light which tells clients, where the files are coming from and who the packets of data are for.
The server needs a server-side software that allows it to understand the file requests made by the clients and also allows them to understand each other, making the whole thing transparent. As said, the server can be a simple desktop that isn’t even running a GUI interface system but can be a bare bone system running software that allows everything to happen. Some systems like the much famed Pirate Bay even ran on mobile computers, allowing them to elude authorities who were after them all these years.

The Factors That Affects Your FTP

Speedy DownloadsFTP is quite straight forward yet unbeknownst to most, they can be quite finicky with exacting requirements such as equal install of the client software that allows you to communicate with the server. The server’s job is simply to disburse the files according to pre-set file sizes, or packets that are then sent through the internet to be stored into a temporary file on your desktop, to be completed and verified when the process has completed. Aborted downloads or uploads can be continued with many software having their own proprietary protocols that allows this to happen. Others go under the browser, using proprietary protocols that allows it to do file transfers quickly. Read the rest of this entry »

More on FTP – How it Works

FTPThough FTP is a straightforward facility to transfer files through the internet easily, without much fuss it is dependent on several factors that makes the process possible. First, you need a client software that can be installed for uploading and downloading, allowing your desktop to take on the same plane as the server that is handling the file distribution. The said “SERVER” may be a simple desktop too but is the so-called traffic light which tells clients, where the files are coming from and who the packets of data are for. Read the rest of this entry »

FTP – The Bad Rap

FileZillaFTP is actually an easier way of transferring files of any size without the nuances and overhead needs of most websites. They come in free-client software that can run within the OS, not using resources too much and without the graphics interface of the may sites we use everyday. The file-sharing facility has gotten a bad rap with all the piracy claims and allegations but plain and simple, it is a way of sending files through the internet without the file size caps and other limitations of other facilities like email clients. Read the rest of this entry »

Factors that determine FTP speed

Everyone wants faster transfers. Here are a few pointers on the things that affect your FTP transfer speed:

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1. Bandwidth
If you have other internet-based applications (like online games, P2P clients, Torrent) running while transferring, your bandwidth is naturally compromised, because you are sharing it with others, making for a slower transfer.

2. ISP
Some ISPs provide slower uploading speed compared to downloading speed, so you may want to clear this issue up with your ISP provider if this is indeed the case. Your ISP may also have a speed limit, which, of course also limits your FTP transfer speed.

3. Multiple connections to the same server.
If you have more than one connection open to the same server that hosts the FTP, then you transfer rate will also be slower. The same goes when people other than you are connected to the same server.

Hardened Anti-Piracy Laws – To Have Longer Teeth

ftpThe problem with piracy(not on the seas) has been so much for some companies that much of their profits from legal sales are lost which has prompted many governments around the world to enact laws with severe penalties to those proven to have participation in such cases. From music, video, e-books and everything else in between all have been preyed upon by pirates who share them uncontrollably, mostly through the many FTP servers all over the globe.
Read the rest of this entry »

FTP Maker: Makes FTP simple

Uploading files via FTP seems to be a complicated process: you need to remember file server addresses, usernames, and passwords, etc. However, Softhing has created a new software that’ll make your FTP life easier and simpler: FTP Maker

Softhing’s new FTP Maker 1.0 lets you do just that: just plug in the server, username, password, directory, and choose whether or not you want files automatically zipped, and click “Create FTP Upload Application.” What you get is a small (less than 1MB) application that lets users drop files on an FTP server without any hassle. You can even personalize it with your company’s logo. And, best of all, it can help give you a break from having to deal with emailing files back and forth.

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