パケットを覗いてみよう / Packet workshop for beginners

多摩科学技術高校 サイエンスワークショップ 2018/03/15-16

Transcript

1. 
   
   
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2. b W
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3. • K O
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5. #
   

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6. P
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7. 
   

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8. http://example.com/abc/d.html
   https://yahoo.co.jp/index.html
   
   

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9. http://example.com:80/abc/d.html
   !
   
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   http
   https
   ftp
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   www.yahoo.co.jp
   twitter.com
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10. http://example.com:80/abc/d.html
    https://yahoo.co.jp:443/def/g.html
    
    
    

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11. • : L 8
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12. 
    

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13. 
    
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    content="text/css">
    content="text/javascript">
    

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14. •
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15. 
    
    

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16. 32 [Bit]
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17. 1
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18. 
    

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19. 
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20. http://example.com:80/abc/d.html
    
    
    
    http://123.45.67.89:80/abc/d.html
    
    
    

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21. • ( ) :
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22. 
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23. 
    
    

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24. 
    
    
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25. • . -
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26. • 7/ / 67 2 10 3 9
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27. •
    
    
    
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28. 
    $ whois -h whois.jprs.jp
    MM14876JP
    

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29. • cl
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30. #
    

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31. • W
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32. D (
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33. C
    
    
    
    
    
    
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34. ) (
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35. 
    
    

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36. 
    
    
    
    

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37. 
    
    
    
    
    

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38. 
    
    

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39. /4 13 . 13 03
    : 6
    

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40. 
    

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41. Ethernet
    IP
    TCP
    HTTP
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42. 
    
    HTTP
    
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    HTTP
    Crystal Project - Everaldo Coelho
    https://www.iconfinder.com/iconsets/crystalproject
    

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43. 
    100 Information
    100
    Continue
    200 Success
    200
    OK
    202
    Accepted
    300 Redirect
    301
    Moved Permanently
    302
    Found
    307
    Temporary Redirect
    400 Client Error
    401
    Unauthorized
    403
    Forbidden
    404
    Not Found
    500 Server Error
    500
    Internal Server Error
    503
    Service Unavailable
    504
    Gateway Timeout
    HTTP/1.1 200 OK
    

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44. • L
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45. • W ?
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46. a
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    3 3 3 3 2 . 21F P
    e T d
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47. • 4-
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48. • G
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49. T
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50. • 7
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51. 
    
    
    
    
    

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52. 
    
    
    
    
    
    TAP
    

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