Peer to peer
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Peer to peer

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Peer to peer Presentation Transcript

  • 1. Peer to Peer File Sharing Da Ren Yang 100595375 Hao Nan Zhou 100639566
  • 2. Table of contents
    • Definition
    • History
    • Advantage
    • Issue
    • Conclusion
    • Reference
  • 3. Definition
    • A peer-to-peer (P2P) is a distributed network structure that clients make a portion of their resources directly available to other network clients , without the need for server or stable host.
  • 4. P2P vs. HTTP Peer to Peer Model (1) (2)
  • 5. History
    • USENET (1979)
      • No PC at that time
    • Napster (1999)
    • created by Shawn Fanning
    (3)
  • 6. History
    • eDonkey (2000)
      • Created by Jed McCaleb nad Sam Yagan
      • Ed2k server
    (4)
  • 7. History
    • eMule (2002)
      • Created by Hendrik Bretkreuz
      • Ed2k and Kad net
    (5)
  • 8. History
    • BitTorrent (2002)
      • Created by Bram Cohen
      • Torrent file (bitcomet, uTorrent , etc.)
      • 50~70 % of p2p i nformation f low now
    (6)
  • 9. Advantages
    • A ll clients provide resources
      • No bandwidth limit (more clients, fast the download speed)
      • Storage space
      • More resource links
  • 10. Issue
    • Always related to pirate
    • Most movies, games, and programs shared in p2p applications are illegal copies .
    • “ Pirate to Pirate”
  • 11. Issue
    • Napster stopped its free service in 2001.
      • Warner Music , Sony Music , and other 5 big music companies have sue d Napster 7 times since 1999.
    • eDonkey p ermanently closed in 2005
      • lose a lawsuit , and pay $30 million to Recording Industry Association of America (RIAA)
  • 12. Issue
    • eMule and BitTorrent still works
      • Free open source program
      • Non Commercial purposes
      • User agreement
      • Download agreement
  • 13. Conclusion
    • Peer-to-Peer application itself is innocent.
    • The criminals are the users (some)
    • Even though bad things happened all the time, we need this technology.
  • 14. References
    • 1) http://www.ibiblio.org/team/intro/search/search.html
    • 2) http://www.ibiblio.org/team/intro/search/search.html
    • 3) http://thelinernotes.wordpress.com/2009/05/
    • 4) http://tsogbadrakh.blogspot.com/2007/09/3-p2p.html
    • 5) http://www.onlytechtalks.com/techtalks/2009/10/emule/
    • 6) http://blog.tuxcoder.com/2009/05/share-files-over-bittorrent-using-local.html
  • 15. End
    • Are there any questions?
    Thank You