Introduction to Internet and Intranet

1
??????????????????????????????????(Introduction
to Internet and Intranet)

• GSPM 912706
• ??????????????????????(Community Information
  Technology)

2
???????

• History of Internet
• TCP/IP
• Internet Services

3
History of Internet

• ?????????????????????????????????????????? 1969
  ????????????????????????? ARPANET
• Advanced Research Projects Agency NETwork
• ??????????????????????????????????????????????????
  ??????????????????????????????????????????????????
  ???????????
• ????????????????????????????????????????????
  Packet-Switched

4
History of Internet

• ??????????????????????????????????????????????????
  ????????????? 4 ???? (Node) ??????
• University of California LA (2 ??????? 1969)
• Standford Research Institute (1 ?????? 1969)
• University of California Santa Barbara (1
  ????????? 1969)
• University of Utah (??????? 1969)
• ????????????????????????????????????????? Link
  ????????? ATT ???????????????????????????? 50Kbps

5
History of Internet
6
History of Internet

• ?????????????????????????? ARPANET
  ??????????????????????????????????????????????????
  ????????????????????????? ARPA ????????
• ??????????????????????????????????????????????????
  ???????????????????????????????????
• ??????????????????????????????????????????????????
  ?????? ARPA ????????????????????????? TCP/IP
  ??????????????????????????????????????????????????
  ???????

7
History of Internet
8
Internet in Thailand

• ???????????????????????????????????????????????
  Internet ??????????.?. 2530 ??????????????????????
  ????? ???????????????????????????? (AIT)
  ????????????????????????????????????????????
• ?? 2535 ??????????????????????????????????????????
  ????????????????????? ????????????????????????????
  ??????????????????????????????????????????????????
  ?? UUNET ????????? UUNET Technologies Co,. Ltd
  ????????????????? ????????????

9
Internet in Thailand

• ??????????????????????????????????????????????????
  ???????????????????????????
• 18 commercial internet service provider (KSC,
  Loxinfo, CS)
• 4 non-commercial internet hubs (ThaiSarn, UniNet,
  PubNet,)
• 2 domestic internet exchanges (NIX, IIR)
• 539.625 Mbps total international bandwidth (IN)
• 414.375 Mbps total international bandwidth (OUT)
• 2,300,000 Internet users (from Thai ISP Club)

10
Internet in Thailand
11
TCP/IP

• Transmission Control Protocol / Internet Protocol
• ??????????????????????????????????????????????????
  ???? Internet
• ?????????? Internet ????????? World Wide Web
  ???????????????????????????????????????????
  Protocol ????????
• ??????????
• Interoperability
• Routability

12
IP Address

• ???????????? IP Address (Internet Protocol
  Address) ??????????????? ?????????????????????
• ??????????????????????????????????????????????????
  ????????????????????????? IP Address
  (Public/Global IP Address)
• ???????????????????????????? IP Address
  ?????????????????????

13
IP Address

• IP Address ????????????????????????????????
  (Binary) ???? 32-bit
• ??????? IP Address ?????????????? 2 ????
• ????????????????? (Network Part)
• ??????????????? (Host Part)
• IP Address ?????????????????????? Class

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IP Address
15
Internet Services

• Network Operating System
• Client / Server
• Domain Name Service (DNS)
• World Wide Web (www)
• File Transfer (ftp)
• Electronic Mail (email)

16
Operating System

• ????????????????????????? (Operating System)
• ??????????????????????????????????????????????????
  ??????????????????????????? ?????????????????
  Monitor
• ?????????? OS
• ??????????????????????????????????????????????????
  ?????????????????????
• ????????????? (User) ?????????????????????????????
  ????

17
Network Operating System

• ??????????????????????????????????????????????????
  ??????????????????????????????????????????????????
  ???????????????????????????????????????? (Network
  Operating SystemNOS)
• NOS ??????????????????????????????????????????????
  ?????????????? ???????????????????????????????????
  ????????????????????????????????
• ??? NOS ????????????????????????????? TCP/IP
  ??????????????????????????????????????????????????
  ????????

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Client / Server

• ????????? Internet ???????????????????????????????
  ???????????????????????????????????????
• ?????????????????????? Internet ????????????????
  ????
• ????????????????????????????? Client/Server

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Client / Server

• Server ??????????????????????????????????????????
  ?? Client ???????? ???? WWW Server, Mail Server,
  DNS Server, IRC Server
• Client ??????????????????????????????????????????
  ? Server ???????????????????

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Client / Server

• ??????????????????????????????????????????????????
  ???????? ?????????????????????? Client
  ??????????????????
• ????????????????????????? Server
  ??????????????????????????????
• Server Farm ??????????????????????????????????????
  ???????????????????????????????????????????????

21
Client / Server

• ??????????????????? Server Farm
  ?????????????????????????????????????
  (Distributed Processing)
• ?????????????????????????????????????????????
• ??????????????????????????????????????????????????
  
• ??????????????????????????????
• ??????????????????????????????????????????????????
  ?????????
• ????????????????????????? (Fault Tolerance)
  ????????
• ????????????????????????????????????????????????
  ??????????????????????
• ??????????????????????????????????????????????????
  ???????????????????

22
Client / Server
23
Domain Name Service

• ??????????????????????????????????????????????????
  ??????????? IP Address ???????????????????????????
  ????????
• ???????????????????????????????????????????????
  IP Address ???????????????????????????????????????
  ?????????????
• ????????????????????????????????? (Hostname)
  ????????????????????????????????????????????? IP
  Address
• ?????????????????????????? ???????????????????????
  ??????????????????????????????????????????????????
  ???????????????? IP Address ????
• Hostname ??????????????????????????? IP Address
  ???????????????????????????????????????????

24
Domain Name Service

• ?????????????????????????????????? Domain Name
  Service
• ?????????????????????????????????????????????????
  (Domain)
• ??????????????????? Domain ???????????????????????
  ? (Hostname) ??????????????? Domain
  ?????????????? (.) ???????? FQDN

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Domain Name Service

• FQDN Fully Qualified Domain Name Hostname
  Domain name
• assani.doc.eng.cmu.ac.th ?????????????????????????
  ???????
• Hostname assani, Domain name
  doc.eng.cmu.ac.th
• Domain ????????????????????????????? ???????????
  th Thailand
• Domain ac ????????????????????????? th
  ?????????? Academic
• Domain cmu ????????????????? ac.th Chiang
  Mai University
• Domain eng ????????????????? cmu.ac.th
  Engineering
• Domain doc ????????????????? eng.cmu.ac.th
  Dept. Comp.
• Hostname assani ?????????????????
  doc.eng.cmu.ac.th

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Domain Name Service
27
World Wide Web

• ??????????????????????????????????????????????????
  ???????? Internet
• ????????????????????????????????????????????????
  ?????? ????? ????????????? ?????????
• World Wide Web (WWW ???? W3) ?????????????????????
  ??? HTML (Hypertext Markup Language)
  ??????????????????????????????????????????????????
  ????????
• HTTP (Hypertext Transfer Protocol)
  ??????????????????????????????????? Hypertext
  ???????????? W3
• ???????????? W3 ??????????????????????????? Web
  Browser
• Netscape, Opera, Mozilla, Internet Explorer

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World Wide Web

• ???????????????? W3 ???????? Web Browser
  ?????????????????????????? URL (Universal
  Resource Location)
• ?????????? Website ??????????????????????????? 28
  ???? Website ??????????????????????????????
• ????????????????????????? Web Server 1
  ?????????????????????? Website ?????????? 1
  Website

29
World Wide Web
30
File Transfer

• ??????????????????????????????????????????????????
  ??? Internet
• ???????????????????????? ??????????? W3
  ????????????????????????
• ?????? FTP ???????????????????????????????????
  (?????????????????????????????????????????????????
  )
• FTP (File Transfer Protocol) ?????????????????????
  ????????????????????????????????????????
• ???????????? File Transfer ???????????????????????
  ????? FTP Client ?????????? ??????
• WS_FTP, CU_FTP, GetRight, FlashGet

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File Transfer

• ???????????? File Transfer ?????????????????? URL
  ??????????????????????????? W3
• ???????????????????????????????????????????????
  ?????????????????????????????????????
• ????????? FTP Client ?????????????????????????????
  ? ??????????????????????????????????
  ????????????????????????????????????????????

32
File Transfer
33
Electronic Mail

• ??????????????????????????????????????????????????
  ??????????????????????????????? W3
• ??????????????????(??????)????????????? Internet
  ??????????????????????????????????????????????????
  ?????????????
• MIME (Multipurpose Internet Mail Extensions)
• ??????????????????????????????????????????????????
  ???? (Text) ????? email ??? ???? ??????
  ?????????? ??????
• ?????????????????? Internet ??????????????????????
  ????? ???????????????????????????????????? Email
  ?????????????

34
Electronic Mail

• SMTP (Simple Mail Transfer Protocol)
  ????????????????????-??? Email ???????????????????
  ?????? ?????????????????????????? Unix
• ???????????? Email ???????????????????????????????
  ???? Email Client ???????????????????????? Mail
  Server ?????????????
• ???????????????????????????????????? www
  ?????????????????????? Email ?????????? WWW
  ?????????? ?????????? Web Mail ??? Hotmail,
  Yahoo, ThaiMail,
• Email Client ??????????????? Email
  ?????????????????? Web Browser ???????

35
Electronic Mail
36
Electronic Mail