what is the concept of 'FTP Accounts'?

Question

hello, everyone.
i dont know the concept about FTP accounts and FTP traffic. so someone could tell me the answer.
thanx

Answer 1

FTP or file transfer protocol is a commonly used protocol for exchanging files over any network that supports the TCP/IP protocol (such as the Internet or an intranet). There are two computers involved in an FTP transfer: a server and a client. The FTP server, running FTP server software, listens on the network for connection requests from other computers. The client computer, running FTP client software, initiates a connection to the server. Once connected, the client can do a number of file manipulation operations such as uploading files to the server, download files from the server, rename or delete files on the server and so on. Any software company or individual programmer is able to create FTP server or client software because the protocol is an open standard. Virtually every computer platform supports the FTP protocol. This allows any computer connected to a TCP/IP based network to manipulate files on another computer on that network regardless of which operating systems are involved (if the computers permit FTP access). There are many existing FTP client and server programs, and many of these are free.



FTP is commonly run on two ports, 20 and 21, and runs exclusively over TCP. The FTP server listens on port 21 for incoming connection from FTP clients. A connection on this port forms the control stream, on which commands are passed to the FTP server. For the actual file transfer to take place, a different connection is required. Depending on the transfer mode, the client (active mode) or the server (passive mode) can listen for the incoming data connection. Before file transfer begins, the client and server also negotiate the port of the data connection. In case of active connections (where the server connects to the client to transfer data), the server binds on port 20 before connecting to the client. For passive connections, there is no such restriction.



While data is being transferred via the data stream, the control stream sits idle. This can cause problems with large data transfers through firewalls which time out sessions after lengthy periods of idleness. While the file may well be successfully transferred, the control session can be disconnected by the firewall, causing an error to be generated.



The objectives of FTP, as outlined by its RFC, are:



1. To promote sharing of files (computer programs and/or data).

2. To encourage indirect or implicit use of remote computers.

3. To shield a user from variations in file storage systems among different hosts.

4. To transfer data reliably and efficiently.



Useful link

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

Answer 2

FTP is a set of data in a protocol that you usually don;t see. It is used to transfer files on the internet. You usually use HTTP for web pages or SMTP for sending email. All are not consciously seen by you, it just happens automatically.



The browser URL http://... tells the browser to get HTTP data from the web server.

ftp://...will get files. Try ftp://ftp.digital.com to see one of the first ftp servers.



To your question, many ftp servers provide anonymous access or anonymous accounts, such as the example above. Other require a username and password. [actually, even an anonymous account uses "anonymous" as the usename and your email as a password by common convention.



The FTP account allows a secure authentication to the file server, just like some web pages require authentication. The username and password are established by the server.



The subjetc ets deeper when you start discussing secure file transfers and such...but enough for now.

Answer 3

FTP (file transfer) works similar to HTTP (webpages) but FTP needs login accounts during its session as Windows NT/2000/XP needs login too. Go find Request for Comments, www.rfc-editor.org search for FTP if you are interested in full detail about FTP, if other stuff like HTTP, DNS, email interest you, search them while you at it. Those are engineering papers.

Answer 4

Hope this helps you with FTP

Answer 5

the international huge information superhighway is the prefix to maximum information superhighway adresses.......the international huge information superhighway is a "information superhighway" of sorts of communications by which information is handed on and shared the web the relationship of the international huge information superhighway by skill of sattelites, phones, or different kinds of connection.