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Skills: none Concepts: log, IP address, URL, packet header and body, geo-location, anonymity, proxy server, the “dictator’s dilemma,” graphical versus.

Published byDelilah Wilkins Modified over 9 years ago

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Presentation on theme: "Skills: none Concepts: log, IP address, URL, packet header and body, geo-location, anonymity, proxy server, the “dictator’s dilemma,” graphical versus."— Presentation transcript:

1 Skills: none Concepts: log, IP address, URL, packet header and body, geo-location, anonymity, proxy server, the “dictator’s dilemma,” graphical versus command-line user interface This work is licensed under a Creative Commons Attribution-Noncommercial-Share Alike 3.0 License. Internet surveillance – who and where are you?

2 Where does this topic fit? Internet concepts – Applications – Technology – Implications Internet skills – Application development – Content creation – User skills

3 IP addressDate FinishedLinked From 155.135.55.2291/27/2011 14:10http://cis275assignments.blogspot.com/2010/08/background-survey.html 155.135.55.2291/31/2011 15:05http://cis275assignments.blogspot.com/2010/08/background-survey.html 96.39.242.1531/27/2011 2:40http://cis275assignments.blogspot.com/2010/08/background-survey.html 155.135.55.2291/27/2011 13:30http://cis275assignments.blogspot.com/2010/08/background-survey.html 155.135.55.2291/25/2011 13:55http://cis275assignments.blogspot.com/2010/08/background-survey.html 75.3.224.651/31/2011 20:15http://cis275assignments.blogspot.com/2010/08/background-survey.html 76.234.226.1551/31/2011 15:10http://cis275assignments.blogspot.com/2010/08/background-survey.html 155.135.55.2291/27/2011 14:20http://cis275assignments.blogspot.com/2010/08/background-survey.html 155.135.55.2291/25/2011 14:10http://cis275assignments.blogspot.com/2010/08/background-survey.html Supplied without your knowledge Why are all the “linked from” URLs the same? Why do so many IP addresses begin with 155.135?

4 Data packets 10011 11101 10101 00110 Client Server 155.135.1.1 11.144.1.14

5 1101010010101101010010101000101010 0010101101010101010010101011010100 1010101010010101001010100111100011 0101011001100101011001010100110010 1010101010010101010100110101010101 0010101110101010010110100101101001 0101010111001010000101010101010100 To: From: Header: Body: Two parts of an Internet protocol (IP) data packet Why did I show the contents of the body as 1s and 0s?

6 IP address Stop and find your IP address

7 Geo-location 155.135.1.1 Stop and find your location. From ip2location.com

8 Who are you? IP address + time and date + ISP log → Internet account holder Who can get access to this information?

9 The U. S. Constitution says you need a warrant But, what did Eric Snowden reveal?

10 Or a job with the NSA or an NSA contractor

11 Anonymity

12 Proxy server Through a proxy Normal connection Proxy server

13 Glasnost which undermined the USSR and other socialist countries consisted in handing over the mass media, one by one, to the enemies of socialism. Raúl Castro October, 1997 One telex can cost twelve dollars [whereas] the same message costs 75 cents in the form of a fax and 3 cents via the Internet... in spite of our blockaded circumstances, we are in a relatively good position [to face the challenges of such scientific and technological changes], due to the educational and scientific work developed by the revolution. Carlos Lage October, 1997 The dictator’s dilemma

14 Ten year prison sentences

15 Summary

16 Self-study questions 1.Criminals use proxy servers to hide their activity. Should we make it a crime to operate a proxy server or are there times when anonymity is desirable? 2.Do you mind servers like the one at SurveyGizmo.com gathering data on you? 3.Can you think of reasons you might want data to be gathered on you? 4.How do questions of privacy differ between cultures and political systems? 5.What is the IP address of your computer? (You will probably have to get some help answering that question). 6.Proxy servers allow user anonymity if surveillance is a problem, but they also enable a form of privacy – explain the way the latter works.

17 Resources A geo-location service: http://www.ip2location.com/ Yahoo identifies dissidents to the Chinese government: http://boingboing.net/2007/04/19/yahoo-aided-china- in.html Student background survey that captured IP addresses: http://cis275assignments.blogspot.com/2010/08/backgrou nd-survey.html The dictator’s dilemma in Cuba: http://laredcubana.blogspot.com/2011/02/dictators- dilemma.html

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