Before you can start working with networking commands, there is some basic terminology that you need to understand.

Network

A network is a connection that allows machines to exchange information. The following are two the types of networks:

  • Wide Area Network (WAN) - A network that is able to span thousands of miles.


  • Local Area Network (LAN) - A network that covers only a small area of no more than a few thousand feet (e.g., a small office building or single floor of a larger building).
Distributed Computing

Distributed Computing enables users to access remote systems in order to share information and network resources and to communicate with users on other systems.

Server

Servers are computers that provide resources to multiple clients. These resources can be such things as file storage, e-mail services, database access, etc.

Client

Client machines make use of the services provided by the servers by connecting to the servers over the network.