Networking (peer to peer) - PowerPoint Presentation


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Networking (peer to peer) - PowerPoint Presentation

  1. 1. Networking Computers Copyright © 2006 by James Hug
  2. 2. Types of Computer Networks <ul><li>Mainframe/Terminal </li></ul><ul><ul><li>1960’s/70’s technology </li></ul></ul><ul><ul><li>Computation centralized </li></ul></ul><ul><li>Server/Client </li></ul><ul><ul><li>1980s technology </li></ul></ul><ul><ul><li>Computation distributed with a central point of data storage </li></ul></ul><ul><ul><li>Large installations </li></ul></ul><ul><li>Peer to Peer </li></ul><ul><ul><li>1990’s technology </li></ul></ul><ul><ul><li>Primarily for file sharing between computers </li></ul></ul><ul><ul><li>Limited to 10 computers (Microsoft limitation) </li></ul></ul>
  3. 3. Typical Installation
  4. 4. Communication Systems <ul><li>Ethernet </li></ul><ul><ul><li>Open network system (most popular) </li></ul></ul><ul><ul><li>Low hardware costs </li></ul></ul><ul><li>Token Ring </li></ul><ul><ul><li>Closed network system - IBM </li></ul></ul><ul><ul><li>Limited to 4 Mbs or 16 Mbs (cable dependent) </li></ul></ul><ul><li>ARCnet </li></ul><ul><ul><li>Obsolete system </li></ul></ul><ul><ul><li>Limited to 15 Mbs </li></ul></ul>
  5. 5. Communication Systems (conti.) <ul><li>USB </li></ul><ul><ul><li>Limited flexibility </li></ul></ul><ul><ul><li>100/400 Mbs </li></ul></ul><ul><ul><li>Maximum cable length 16 foot </li></ul></ul><ul><li>FireWire (IEEE 1394) </li></ul><ul><ul><li>Limited flexibility </li></ul></ul><ul><ul><li>480 Mbs </li></ul></ul><ul><ul><li>Maximum cable length 16 foot </li></ul></ul>
  6. 6. Communication Systems (conti.) <ul><li>AppleTalk </li></ul><ul><ul><li>Closed network system - Apple Computer </li></ul></ul><ul><ul><li>Used primarily for their printer sharing </li></ul></ul><ul><li>StarLan </li></ul><ul><ul><li>Closed network system </li></ul></ul><ul><li>HPNA </li></ul><ul><ul><li>Phoneline network system </li></ul></ul><ul><li>Power Line </li></ul><ul><li>Others </li></ul>
  7. 7. Ethernet Cable Systems <ul><li>ThinNet (10Base2) </li></ul><ul><ul><li>Coaxial cable (bus topology) </li></ul></ul><ul><ul><li>Half duplex communication </li></ul></ul><ul><ul><li>Limited to 10 Mbs </li></ul></ul><ul><ul><li>Limited to 900 foot total length </li></ul></ul><ul><ul><li>Limited installation flexibility </li></ul></ul><ul><ul><li>Rapidly becoming obsolete </li></ul></ul>
  8. 8. Ethernet Systems (conti.) <ul><li>Unshielded Twisted Pair (UTP) </li></ul><ul><ul><li>Half or Full Duplex [10/100/1000BaseT(x)] </li></ul></ul><ul><ul><li>Speed is depended on the cable type </li></ul></ul><ul><ul><li>Cable Types </li></ul></ul><ul><ul><ul><li>Cat-1 – Telephone (voice) </li></ul></ul></ul><ul><ul><ul><li>Cat-2 – 4 Mbs (Token Ring) </li></ul></ul></ul><ul><ul><ul><li>Cat-3 – 10 Mbs (Ethernet) – 300 foot max. length </li></ul></ul></ul><ul><ul><ul><li>Cat-4 – 20 Mbs (Token Ring) </li></ul></ul></ul><ul><ul><ul><li>Cat-5 – 100 Mbs (Ethernet) – 300 foot max. length </li></ul></ul></ul><ul><ul><ul><li>Cat-6 – 250 Mbs (Ethernet) – 300 foot max. length </li></ul></ul></ul>
  9. 9. Ethernet Systems (conti.) <ul><li>Fiber Optic (FDDI) </li></ul><ul><ul><li>1000 Mbs (Ethernet limitation) </li></ul></ul><ul><ul><li>Same cable can share other transmission protocols (i.e. ATM, etc.) at the same time </li></ul></ul><ul><ul><li>Length limitation – miles (depended on hardware) </li></ul></ul><ul><ul><li>Used extensively to connect server farms together </li></ul></ul>
  10. 10. Ethernet Systems (conti.) <ul><li>Wireless </li></ul><ul><ul><li>IEEE 802.11.a </li></ul></ul><ul><ul><ul><li>5.4 MHz – 54 Mbs – 100 foot line of sight </li></ul></ul></ul><ul><ul><li>IEEE 802.11.b </li></ul></ul><ul><ul><ul><li>2.4 MHz – 11 Mbs – 300 foot line of sight </li></ul></ul></ul><ul><ul><li>IEEE 802.11.g </li></ul></ul><ul><ul><ul><li>2.4 MHz – 54 Mbs – 300 foot line of sight </li></ul></ul></ul><ul><ul><li>IEEE 802.11.gx </li></ul></ul><ul><ul><ul><li>2.4 MHz – 108 Mbs – 300 foot line of sight </li></ul></ul></ul>
  11. 11. Hardware Requirements <ul><li>Network Interface Card (NIC) </li></ul><ul><ul><li>Each computer must have one, either an installed or built onto the motherboard </li></ul></ul><ul><ul><li>It can be either wired or wireless </li></ul></ul><ul><ul><li>Must be compatible with cable system </li></ul></ul><ul><ul><li>I recommend 100BaseT(x) for wired systems </li></ul></ul><ul><ul><li>Cost (wired) ≈ $10.00 each </li></ul></ul><ul><ul><li>Cost (wireless) ≈ $60.00 each </li></ul></ul>
  12. 12. Hardware Requirements (conti.) <ul><li>Hub/Switch/Router/Wireless Access Point </li></ul><ul><ul><li>For connecting two computers together – none is needed, but a “cross over” type cable is required </li></ul></ul><ul><ul><li>For networking several computers together (Peer to Peer) with no Internet connection – either a Hub/Switch/Wireless AP is needed </li></ul></ul><ul><ul><li>For networking several computers to a broadband connection (DSL/Cable) – a Router is needed </li></ul></ul>
  13. 13. Hardware Requirements (conti.) <ul><ul><li>Hub/Switch/Router costs </li></ul></ul><ul><ul><ul><li>Hub ≈ $10.00 - depended on number of ports </li></ul></ul></ul><ul><ul><ul><li>Switch ≈ $20.00 - depended on number of ports </li></ul></ul></ul><ul><ul><ul><li>Router (wired) ≈ $40.00 - depended on number of ports </li></ul></ul></ul><ul><ul><ul><li>Router (wireless 802.11.b) ≈ $50.00 </li></ul></ul></ul><ul><ul><ul><li>Router (wireless 802.11.g/gx) ≈ $60.00 </li></ul></ul></ul>
  14. 14. Hardware Requirements (conti.) <ul><ul><li>Cable cost </li></ul></ul><ul><ul><ul><li>CAT-5/6 cable ≈ $0.20 per foot (with connectors affixed) </li></ul></ul></ul>
  15. 15. Typical Installation
  16. 16. Transmission Protocols <ul><li>TCP/IP </li></ul><ul><ul><li>Internet standard also used by Unix (Linux) and Windows 2000 & XP </li></ul></ul><ul><li>NetBEUI </li></ul><ul><ul><li>Used in peer to peer networks </li></ul></ul><ul><ul><li>With the introduction of Windows XP - no longer supported by Microsoft </li></ul></ul><ul><li>IPX/SPX </li></ul><ul><ul><li>Used in legacy Novell systems </li></ul></ul>
  17. 17. Transmission Protocols (conti.) <ul><li>Other systems </li></ul><ul><ul><li>PPP – Dial up modem (POT) </li></ul></ul><ul><ul><li>PPPoE – Broadband (DSL & TV Cable) </li></ul></ul><ul><ul><li>PPTP – Virtual Private Networks </li></ul></ul><ul><ul><li>UPnP – Special devices (printer servers, household appliances, etc.) </li></ul></ul><ul><ul><li>AppleTalk - Used primarily for printer sharing </li></ul></ul><ul><ul><li>DLC – IBM mainframe/terminal </li></ul></ul><ul><ul><li>ATM – Teleco network interconnections </li></ul></ul>
  18. 18. Software Requirements (Peer to Peer network) <ul><li>DOS & Windows 3.1 systems </li></ul><ul><ul><li>Third party software is required (Lantastic, etc.) </li></ul></ul><ul><li>Windows 3.11 & 95 systems </li></ul><ul><ul><li>Third party software is required (Lantastic, etc.) </li></ul></ul><ul><li>Windows 95(OSR) & 98(x) systems </li></ul><ul><ul><li>Included in operating system </li></ul></ul><ul><li>Windows 2000 & XP systems </li></ul><ul><ul><li>Included in operating system </li></ul></ul>
  19. 19. Hardware Installation <ul><li>Desktop Computers </li></ul><ul><ul><li>Install NIC card in computer (if needed) </li></ul></ul><ul><ul><ul><li>Be sure to unplug the power cord </li></ul></ul></ul><ul><ul><ul><li>Remove case cover </li></ul></ul></ul><ul><ul><ul><li>Install NIC card in an available slot </li></ul></ul></ul><ul><ul><ul><li>Replace case cover </li></ul></ul></ul><ul><li>Laptop computers </li></ul><ul><ul><li>Some Laptop computers have a NIC built into them; if not, insert a NIC PCMCA card into the PCMCA slot and reboot the computer </li></ul></ul>
  20. 20. Hardware Installation (Conti.) <ul><li>Driver Installation </li></ul><ul><ul><li>Run the software that came with the NIC card </li></ul></ul><ul><ul><li>If no software came with the NIC card, do: </li></ul></ul><ul><ul><ul><li>Click right mouse button on “My Computer” </li></ul></ul></ul><ul><ul><ul><li>Click left mouse button on “Properties” </li></ul></ul></ul><ul><ul><ul><li>Windows 98(x) – click left mouse button on “Device Manager” </li></ul></ul></ul><ul><ul><ul><li>Windows 2000 & XP – click left mouse button on “Hardware” & click left mouse button on “Device Manager” </li></ul></ul></ul>
  21. 21. Hardware Installation (Conti.) <ul><li>Driver Installation (conti.) </li></ul><ul><ul><ul><li>Run the “Add Hardware Manager Wizard” </li></ul></ul></ul><ul><ul><ul><li>Or manually install the device driver </li></ul></ul></ul><ul><ul><li>Verify in the “Device Manager” that the driver is installed properly and enabled </li></ul></ul><ul><ul><ul><li>There should be no yellow “explanation marks” ( ! ) on any of the devices </li></ul></ul></ul><ul><ul><ul><li>Look in the properties of the device, it will tell you if the device is enabled </li></ul></ul></ul>
  22. 22. Connection Software (Services) <ul><li>Internet Connection (Broadband) </li></ul><ul><ul><li>Windows 98(x) systems </li></ul></ul><ul><ul><ul><li>In “Settings” > “Control Panel” > “Network” verify that the following are installed and install if missing: </li></ul></ul></ul><ul><ul><ul><ul><li>Client for Microsoft Networks </li></ul></ul></ul></ul><ul><ul><ul><ul><li>Microsoft Family Logon </li></ul></ul></ul></ul><ul><ul><ul><ul><li>File and printer sharing for Microsoft Networks </li></ul></ul></ul></ul><ul><ul><ul><ul><li>NETBEUI -> Dial up Adapter </li></ul></ul></ul></ul><ul><ul><ul><ul><li>NETBEUI -> NIC adapter </li></ul></ul></ul></ul><ul><ul><ul><ul><li>TCP/IP -> Dial up Adapter </li></ul></ul></ul></ul><ul><ul><ul><ul><li>TCP/IP -> NIC adapter </li></ul></ul></ul></ul><ul><ul><ul><li>Select “Microsoft Family Logon” as Primary Network Logon </li></ul></ul></ul><ul><ul><ul><li>In “File and Print Sharing” tab check the appropriate boxes </li></ul></ul></ul>
  23. 23. Connection Software (Services) <ul><li>Internet Connection (Broadband) </li></ul><ul><ul><li>Windows 2000 & XP systems </li></ul></ul><ul><ul><ul><li>If you decide to convert all of your computers on your LAN to Microsoft’s new standard (NETBIOS over TCP/IP) do the following: </li></ul></ul></ul><ul><ul><ul><ul><li>In “My Network places” screen under “Network Tasks” run the “Set up a small home or office network </li></ul></ul></ul></ul><ul><ul><ul><ul><li>Make a “Network Install” floppy disk and run it on your other computers </li></ul></ul></ul></ul><ul><ul><ul><li>If you decide to stay with Microsoft’s discontinued NETBEUI protocol find and install the NETBEUI protocol in your “Local Network Connection Properties” panel </li></ul></ul></ul>
  24. 24. Finding & Installing NetBEUI <ul><li>On the Window XP installation CD-ROM in the “VALUEADDMSFTNETBEUI” folder </li></ul><ul><ul><ul><li>1. Copy the “NBF.SYS” file to the hard disk’s folder “WINDOWSSYSTEMSDRIVERS” </li></ul></ul></ul><ul><ul><ul><li>2. Copy the “NETNBF.INF” file to the hard disk’s folder “WINDOWSINF” </li></ul></ul></ul><ul><li>In “Local Network Connection Properties” install the NetBEUI protocol for each NIC device </li></ul>
  25. 25. Wireless Network Security <ul><li>Reconfigure the router: </li></ul><ul><ul><li>Change the router name and password </li></ul></ul><ul><ul><li>Rename the wireless network name </li></ul></ul><ul><ul><li>Turn off SSID broadcasting </li></ul></ul><ul><ul><li>Setup MAC filters for only permitted wireless computers </li></ul></ul><ul><ul><li>Use encryption (WEP, WPA etc.) </li></ul></ul>
  26. 26. How To Web Site <ul><li>My best known help web site is PC911 </li></ul><ul><li> </li></ul><ul><li>Good Luck and Happy Networking </li></ul><ul><li>James Hug </li></ul>