TAILIEUCHUNG - Module Linux essentials - Module 12: Network configuration

Module Linux essentials - Module 12 introduce network configuration. After studying this chapter students should be able to: Working with the Internet, network, and routers; understanding Domain Name Service; understanding network configuration. | Module 12 Network Configuration Exam Objective Your Computer on the Network Objective Summary Working with the Internet, network, and routers Domain Name Service Network configuration Basic Networking Basic Network terminology Host - a host is any device that communicates with another device on a network. Network - A network is a collection of two or more hosts (computers) that are able to communicate with each other. Internet - A publically accessible network that connects millions of hosts throughout the world. Wi-Fi - The term Wi-Fi refers to wireless networks. Basic Network terminology (cont) Server/Service - When a host provides a feature to another host, that feature is called a service. Example: a web server provides the service of web pages. Client - A client is a host that is accessing a server. Router - Also called a gateway, a router is a machine that connects hosts from one network to another network. Basic Network terminology (cont) Networking Features Terminology Network packet - Used to send network communication between hosts. IP address - An Internet Protocol (IP) address is a unique number assigned to a hosts on a network. Network mask - Also called a netmask or mask, a network mask is a number system that can be used to define which IP addresses are considered to be within a single network. Networking Features Terminology (cont) Hostname - Each host is provided a human-understandable name, called a hostname. Hostnames are translated into IP addresses before the network packet is sent on the network. DHCP - Hosts can be assigned hostnames, IP addresses and other network-related information by a DHCP (Dynamic Host Configuration Protocol) server. DNS - A server that provides the service of translating IP addresses to hostnames. Networking Features Terminology (cont) Ethernet - In a wired network environment, Ethernet is the most common way to physically connect the hosts into a network. TCP/IP - The Transmission Control Protocol/Internet .

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