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Peer to peer
Peer to peer
Peer to peer
Peer to peer
Peer to peer
Peer to peer
Peer to peer
Peer to peer
Peer to peer
Peer to peer
Peer to peer
Peer to peer
Peer to peer
Peer to peer
Peer to peer
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Peer to peer

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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

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