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Title:

Internet and World Wide Web Technologies

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... File Transfer Protocol SMTP Simple Mail Transfer Protocol POP Post Office Protocol IMAP Internet Message Access Protocol Telnet ... – PowerPoint PPT presentation

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Learn more at: http://www.cs.siena.edu
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Title: Internet and World Wide Web Technologies


1
Internet and World Wide Web Technologies
  • E-commerce Book Chapter 3
  • pages 116-182
  • Concentrate on 162-171

2
Domain Name Hierarchies
3
Domain Name Hierarchies
4
ICANN
  • Internet Corporation for Assigned Numbers and
    Networks.
  • Global coordinator of IP Address and Domain
    names.
  • Registrars like GoDaddy are licenses by ICANN
    to register domain names.
  • Large Internet Providers also secure IP
    addresses and farm them out to smaller ISPs.

5
Map of the Internet (US)
  • http//www.cs.siena.edu/ebreimer/courses/csis-116
    -s07/Internet_map_labels.pdf
  • The above is a partial map as seen from one
    location (Lumeta.com).

6
USA Pioneers of the Internet
  • The United States pioneered the Internet, and
    thus, owns the largest chunk of the
    infrastructure.
  • Western Europe, Japan, and Australia were quick
    to follow.
  • Eastern Europe, Russia and China are just getting
    established
  • Parts of Asia are next India
  • South America and Africa may be decades away

7
Client Server Model
  • Do not forget that the Internet and WWW use this
    model extensively.

8
Protocols
  • HTTP / HTTPS Hypertext Transfer Protocol
    (Secure)
  • FTP / SFTP (Secure) File Transfer Protocol
  • SMTP Simple Mail Transfer Protocol
  • POP Post Office Protocol
  • IMAP Internet Message Access Protocol
  • Telnet Terminal Emulation
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