Pedro

Pedro

Sabtu, 14 April 2012

Internet Intranet and VPN


1.      Internet
Internet is a computer network that is based on TCP/IP which connects computers around the world. In the Internet, there is a Web server that provides programs and data on one side, and on another side there is a client that is equipped with browser to access the web server.
2.      Intranet
Intranet is a local network that is based on TCP/IP which connects computers in a local area in a building, a school, a campus, or in a company. Thus, Intranet is internet technology used in a local scope.
  
3.      Virtual Private Network (VPN)
VPN or extranet is a private network (of a company) which is based on TCP/IP using internet and public telecommunication connection to share some information. For example, a company with branch offices in all cities has intranet in each of the offices. VPN connects the intranet of all branch offices using public internet connection, but forms a company private connection.

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