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Lecture TCP-IP protocol suite - Chapter 24: Hypertext Transfer Protocol (HTTP)

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The Hypertext Transfer Protocol (HTTP) is a protocol used mainly to access data on the World Wide Web. HTTP functions like a combination of FTP and SMTP. This chapter provides knowledge of Hypertext Transfer Protocol (HTTP): HTTP transaction, request message, response message, header, examples, some other features.

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Nội dung Text: Lecture TCP-IP protocol suite - Chapter 24: Hypertext Transfer Protocol (HTTP)

  1. Chapter 24 Hypertext Transfer Protocol (HTTP) McGraw­Hill ©The McGraw­Hill Companies, Inc., 2000
  2. CONTENTS •  HTTP TRANSACTION •  REQUEST MESSAGE •  RESPONSE MESSAGE •  HEADER •  EXAMPLES •  SOME OTHER FEATURES McGraw­Hill ©The McGraw­Hill Companies, Inc., 2000
  3. HTTP uses the services of TCP on well-known port 80. McGraw­Hill ©The McGraw­Hill Companies, Inc., 2000
  4. 24.1 HTTP TRANSACTION McGraw­Hill ©The McGraw­Hill Companies, Inc., 2000
  5. Figure  24­1 HTTP transaction McGraw­Hill ©The McGraw­Hill Companies, Inc., 2000
  6. Figure  24­2 Message categories McGraw­Hill ©The McGraw­Hill Companies, Inc., 2000
  7. 24.2 REQUEST MESSAGE McGraw­Hill ©The McGraw­Hill Companies, Inc., 2000
  8. Figure  25­3 Request message McGraw­Hill ©The McGraw­Hill Companies, Inc., 2000
  9. Figure  24­4 Request line McGraw­Hill ©The McGraw­Hill Companies, Inc., 2000
  10. Figure  24­5 URL McGraw­Hill ©The McGraw­Hill Companies, Inc., 2000
  11. 24.3 RESPONSE MESSAGE McGraw­Hill ©The McGraw­Hill Companies, Inc., 2000
  12. Figure  24­6 Response message McGraw­Hill ©The McGraw­Hill Companies, Inc., 2000
  13. Figure  24­7 Status line Status code: Same format as FTP responses (three digits) McGraw­Hill ©The McGraw­Hill Companies, Inc., 2000
  14. 24.4 HEADER McGraw­Hill ©The McGraw­Hill Companies, Inc., 2000
  15. Figure  24­8 Header format McGraw­Hill ©The McGraw­Hill Companies, Inc., 2000
  16. Figure  24­9 Headers McGraw­Hill ©The McGraw­Hill Companies, Inc., 2000
  17. 24.5 EXAMPLES McGraw­Hill ©The McGraw­Hill Companies, Inc., 2000
  18. Example 1 This example retrieves a document. We use the GET method to retrieve an image with the path /usr/bin/image1. McGraw­Hill ©The McGraw­Hill Companies, Inc., 2000
  19. Figure  24­10 Example 1 McGraw­Hill ©The McGraw­Hill Companies, Inc., 2000
  20. Example 2 This example retrieves information about a document. We use the HEAD method to retrieve information about an HTML document (see Chapter 25) McGraw­Hill ©The McGraw­Hill Companies, Inc., 2000
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