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Other filesharing software

Other filesharing software. 1.BT(Bit Torrent) 2.Clubbox 3.Foxy. About BT and author. Author ： Bram Cochen ， 2002 Homepage ： http://bitconjurer.org/. Some BT software. BT Plus BitComet BitLord BitBuddy BitTornado Azureus uTorrent BitTorrent. BT principle.

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Other filesharing software

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  1. Other filesharing software • 1.BT(Bit Torrent) • 2.Clubbox • 3.Foxy

  2. About BT and author • Author：Bram Cochen，2002 • Homepage：http://bitconjurer.org/

  3. Some BT software • BT Plus • BitComet • BitLord • BitBuddy • BitTornado • Azureus • uTorrent • BitTorrent

  4. BT principle • Improve traditional P2P(have to queue) • Upload part others want • Download part we need • Many points file sharing system

  5. BT implement • 1. Torrent file and Tracker • 2. Rarest First Policy • 3. Choking Policy • 4. Optimistic Unchoking

  6. Torrent file and Tracker • Tracker：member list and location • Torrent file： 1.Tracker location • 2.part file of complete name • For a new member： • 1.Get Torrent file to know tracker • 2.By tracker to interact with other member

  7. Seed • What’s seed？ • provide source to let other download • Who can become seed？ • 1.Who first provides this file is a seed. • 2.If this file was downloaded completely， the member also becomes a seed.

  8. ClubBox • Korea software • 100GB space • For free • Have to become member first • Some restriction

  9. ClubBox character • Three level member  different power • 100GB space，can upload our file，but for 2 and 3 level member，it has some restriction • Constant download speed about 50kb/s • If we collect enough money points，we can download in 3000 kb/s for once • Box Points to determine whether can level up

  10. ClubBox summary • Provide a way like ftp to let us share file • Although its tedious rule，it’s also a good way to share file • To know files where can download，we have to go to the forum to get the path

  11. Foxy • A new and hot p2p software recently • Simple interface and easy to use • Without any restriction • Advantage=Disadvantage • Send many requests • Bandwidth and CPU consumption • Easy to betray private files

  12. Comparison • Speed：BT>foxy>eMule (ClubBox ?) • Security：ClubBox>eMule>BT>>>>Foxy • Source：foxy=eMule>ClubBox=BT • Convenience：eMule=foxy>BT=ClubBox • From above software，we know eMule is a practical software in these respects.

  13. Summary • P2P software’s essence • P2P software = Crime ??

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