File Transfer Protocol (ftp)
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File transfer protocol
FTP (File Transfer Protocol) is the simplest and most secure way to exchange files over the Internet. Whether you know it or not, you most likely use FTP all the time.
The most common use for FTP is to download files from the Internet. Because of this, FTP is the backbone of the MP3 music craze, and vital to most online auction and game enthusiasts. In addition, the ability to transfer files back-and-forth makes FTP essential for anyone creating a Web page, amateurs and professionals alike.
When downloading a file from the Internet youre actually transferring the file to your computer from another computer over the Internet. This is why the T (transfer) is in FTP. You may not know where the computer is that the file is coming from but you most likely know its URL or Internet address.
An FTP address looks a lot like an HTTP, or Website, address except it uses the prefix ftp:// instead of
Most often, a computer with an FTP address is dedicated to receive an FTP connection. Just as a computer that is setup to host Web pages is referred to as a Web server or Website, a computer dedicated to receiving an FTP connection is referred to as an FTP server or FTP site.
What is an FTP Site?
An FTP site is like a large filing cabinet. With a traditional filing cabinet, the person who does the filing has the option to label and organize the files however they see fit. They also decide which files to keep locked and which remain public. It is the same with an FTP site.
The virtual key to get into an FTP site is the UserID and Password. If the creator of the FTP site is willing to give everyone access to the files, the UserID is anonymous and the Password is your e-mail address (e.g. [email protected]). If the FTP site is not public, there will be a unique UserID and Password for each person who is granted access.
When connecting to an FTP site that allows anonymous logins, youre frequently not prompted for a name and password. Hence, when downloading from the Internet, you most likely are using an anonymous FTP login and you dont even know it.
To make an FTP connection you can use a standard Web browser (Internet Explorer, Firefox, etc.) or a dedicated FTP software program, referred to as an FTP Client.
What is an FTP Client?
An FTP Client is software that is designed to transfer files back-and-forth between two computers over the Internet. It needs to be installed on your computer and can only be used with a live connection to the Internet.
FTP commands
The FTP (File Transfer Protocol) utility program is commonly used for copying files to and from other computers. These computers may be at the same site or at different sites thousands of miles apart. FTP is a general protocol that works on UNIX systems as well as a variety of other (non-UNIX) systems.
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