[기술혁신] 인터넷의 역사(영문)
![[기술혁신] 인터넷의 역사(영문)-1](http://images.happyhaksul.com/thumb/544/543044-0001.gif)
![[기술혁신] 인터넷의 역사(영문)-2](http://images.happyhaksul.com/thumb/544/543044-0002.gif)
![[기술혁신] 인터넷의 역사(영문)-3](http://images.happyhaksul.com/thumb/544/543044-0003.gif)
![[기술혁신] 인터넷의 역사(영문)-4](http://images.happyhaksul.com/thumb/544/543044-0004.gif)
![[기술혁신] 인터넷의 역사(영문)-5](http://images.happyhaksul.com/thumb/544/543044-0005.gif)
분야
hwp2, Body
2. 2 E-mail
2. 3 FTP
2. 4 TCP/IP
2. 5 USENET / NNTP
2. 6 GUI PC 등장
2. 7
3. Conclusion
The first major revision was RFC 354, July 1972, which for the first time contained a description of the overall communication model used by modern TCP, and details on many of the current features of the protocol. In subsequent months many additional RFCs were published, defining features for FTP or raising issues with it. RFC 542, August 1973, the FTP specification looks remarkably similar to the one we use today, over three decades later, except that it was still defined to run over NCP. (called simply the Network Control Protocol or NCP)
This picture shows the interaction ~
When a client of FTP connect to FTP server, the client use own random number which is bigger than 1024 and received from server. FTP server use 21 port number that is designed by standard. Once the client connect to serve, try to login in and the client can search directories of server and send to message after succed to log-in.
