17 Establishing Dial-up Connection to the Internet Using Windows 9x 1.Install and configure the modem 2.Configure Dial-Up Adapter 3.Configure Dial-Up Networking.

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Establishing Dial-up Connection to the Internet Using Windows 9x

1. Install and configure the modem2. Configure Dial-Up Adapter3. Configure Dial-Up Networking4. Install applications software to use the

Internet

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Configuring Dial-Up Networking

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Configuring Dial-Up Networking

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Cable Modem and DSL Connections to the Internet

Cable modem• Provided by service provider• Has a connection to the TV cable system of your

home that connects to the ISP and an Ethernet port to connect to your PC

• Ethernet cable connects the cable modem to a network card installed in your PC

DSL• A device sits next to your PC, which connects to the

DSL line on one side and to a network card installed in your PC on the other side

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Examples of Network Services

Most function at top three layers of the OSI model – application, presentation, and session layers

Must be a program running on both nodes of the network for the service to work

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Upper-level Protocols

Hypertext Transfer Protocol (HTTP)• Used by the World Wide Web

File Transfer Protocol (FTP)• Used to transfer files

Simple Mail Transfer Protocol (SMTP)• Used to transfer e-mail

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Uniform Resource Locator (URL)

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World Wide Web Browsers

Provide interface between Web sites and PCs Access a server by either its IP address or its

domain name Use HTTP to request and pass documents on

the Web Terminology

• Hypertext• HTML

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File Transfer

File Transfer Protocol (FTP)• Used to transfer files between two

computers using same or different OS Can be initiated at a command prompt

or using an ISP

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File Transfer from a Command Prompt

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File Transfer Using FTP Software

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File Transfer Using FTP Software

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Network Drive Map

One of most powerful and versatile methods of communicating over a network

Uses network file service (NFS) software to make one PC appear to have a new hard drive

Files and folders on host computer are available even to network-unaware DOS applications

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Preparing a Windows NT Host Computer for a Network Drive Map

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Preparing a Windows NT Host Computer for a Network Drive Map

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Preparing a Windows NT Host Computer for a Network Drive Map

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Mapping the Network Drive from a Remote to a Host Computer

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Mapping the Network Drive from a Remote to a Host Computer

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Mapping the Network Drive from a Remote to a Host Computer

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Linux Operating System

Well-suited to support web servers, FTP servers, and file servers

A UNIX-like operating system; can use more than one shell

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Linux System Administrator

Installs updates to the OS (patches) Manages backup processes Supports installation of software and

hardware Sets up user accounts Resets passwords Generally supports users Has root privileges

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Linux Operating System

continued

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UNIX Commands

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Managing Processes

To initiate a process to run in the background, enter the name of the process at the command prompt followed by “&”

Linux starts the process and responds with a number (the process identifying number, or PID)

To stop a process, use the kill command

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Windows Manager

Several applications have been written to provide a GUI shell for UNIX and Linux; these shells are called X Windows

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A Typical X Window Screen

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Major Components of a GNOME Windows

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Network Troubleshooting Guidelines

Windows 9x dial-up problems (modem problems)• Cannot make a connection• You can connect, but you get the message “Unable

to resolve hostname…”• After connecting, you get the error message “Unable

to establish a compatible set of network protocols” Problems with TCP/IP

• Problems with TCP/IP configuration or suspected network problems (packet Internet groper or PING)

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Chapter Summary

Fundamentals of the hardware and software that make up networks

How to support a PC that interfaces with the Internet