FTP is a convention or set of rules used for transferring files from one computer (or network) to another computer (or network). Thus FTP allows copying of files from a remote server to our own computer and transferring files from our computer to some remote computer. Using FTP a user can log on to a remote computer by giving the address of the host computer.
Besides managing the access control and file transfers, FTP also deals with protection given to a file. Protection may not be given to a file if it is assumed that all the clients are trustworthy. Whenever the clients make requests, the server provides the requested files as they are.
A second alternative is to assign a password to each authorized user. The server, before giving access to any file, will check the password of the client and process his/her request only if the password is valid. A third alternative is assign a password to the files. The passwords assigned for files provide different access rights such as read only, modification and full control.
ADVANTAGES OF FTP :
- Useful for transferring files from one network in an organization to another.
- Geographically separated groups working on a common project may co-operate and co-ordinate with each other.
- Most useful way of sharing information and resources over WANs like internet.
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