1. 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 4.Install applications software to use the Internet

2. 17 Configuring Dial-Up Networking

3. 17 Configuring Dial-Up Networking

4. 17 Cable Modem and DSL Connections to the Internet n 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 n 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

5. 17 Examples of Network Services n Most function at top three layers of the OSI model – application, presentation, and session layers n Must be a program running on both nodes of the network for the service to work

6. 17 Upper-level Protocols n Hypertext Transfer Protocol (HTTP) Used by the World Wide Web n File Transfer Protocol (FTP) Used to transfer files n Simple Mail Transfer Protocol (SMTP) Used to transfer e-mail

7. 17 Uniform Resource Locator (URL)

8. 17 World Wide Web Browsers n Provide interface between Web sites and PCs n Access a server by either its IP address or its domain name n Use HTTP to request and pass documents on the Web n Terminology Hypertext HTML

9. 17 File Transfer n File Transfer Protocol (FTP) Used to transfer files between two computers using same or different OS n Can be initiated at a command prompt or using an ISP

10. 17 File Transfer from a Command Prompt

11. 17 File Transfer Using FTP Software

12. 17 File Transfer Using FTP Software

13. 17 Network Drive Map n One of most powerful and versatile methods of communicating over a network n Uses network file service (NFS) software to make one PC appear to have a new hard drive n Files and folders on host computer are available even to network-unaware DOS applications

14. 17 Preparing a Windows NT Host Computer for a Network Drive Map

15. 17 Preparing a Windows NT Host Computer for a Network Drive Map

16. 17 Preparing a Windows NT Host Computer for a Network Drive Map

17. 17 Mapping the Network Drive from a Remote to a Host Computer

18. 17 Mapping the Network Drive from a Remote to a Host Computer

19. 17 Mapping the Network Drive from a Remote to a Host Computer

20. 17 Linux Operating System n Well-suited to support web servers, FTP servers, and file servers n A UNIX-like operating system; can use more than one shell

21. 17 Linux System Administrator n Installs updates to the OS (patches) n Manages backup processes n Supports installation of software and hardware n Sets up user accounts n Resets passwords n Generally supports users n Has root privileges

22. 17 Linux Operating System

23. continued

24. 17 UNIX Commands

25. 17 Managing Processes n To initiate a process to run in the background, enter the name of the process at the command prompt followed by “&” n Linux starts the process and responds with a number (the process identifying number, or PID) n To stop a process, use the kill command

26. 17 Windows Manager n Several applications have been written to provide a GUI shell for UNIX and Linux; these shells are called X Windows

27. 17 A Typical X Window Screen

28. 17 Major Components of a GNOME Windows

29. 17 Network Troubleshooting Guidelines n 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” n Problems with TCP/IP Problems with TCP/IP configuration or suspected network problems (packet Internet groper or PING)

30. 17 Chapter Summary n Fundamentals of the hardware and software that make up networks n How to support a PC that interfaces with the Internet