The ARPA services are a subset of the networking services
originally developed by the University of California at Berkeley
for the Advanced Research Projects Agency (ARPA). ARPA services
have become a de facto standard for multivendor network
communication.
FTP |
 |
FTP is an ARPA Service that allows users to transfer files
among other networked systems. FTP is the file transfer program
that uses the ARPA standard File Transfer Protocol (FTP). With FTP,
you can also perform file management operations.
FTP is based on the client-server model as shown in Figure 1-1 “FTP Client-Server Model”. An FTP user on a system
(the client) accesses the remote host FTP server to perform FTP
tasks. FTP conforms to the de-facto industry standards RFC959 and
RFC1123.
Figure 1-1 FTP Client-Server Model
![[FTP Client-Server Model]](img/gfx1.gif)
