The document discusses various peer-to-peer (P2P) file downloading methods including classic P2P networks like Napster and Kazaa, torrent downloading using BitTorrent clients, and more recent methods like using email mailboxes or file storage servers. It notes that while early P2P networks allowed anonymous sharing and downloading, legal issues have led countries to restrict copyrighted content spreading and internet providers are now required to log user activities for police.

1. P2P File Downloading Methods
Michał Laskowski
Sopot 2010
Source: Michał Laskowski

2. P2P File sharing
Files shared over the internet available to
anonymous users for download
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3. P2P classic
Napster - first P2P network to share music among
user world wide. Whole files shared
Kazaa, eMule, Bearshare - P2P file sharing over the
web. Files divided into parts
Problem: Search included in the application,
during download user is sharing the file
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4. P2P classic eMule (1)
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5. P2P classic eMule (2)
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6. P2P torrent
Torrent - file containing information about a shared
file, its parts and servers where it is available.
While downloading users are sharing files, keeping
the torrent alive and available for download.
Users place torrent files for download on forums,
websites and send them via e-mail
Problem: Your IP is visible as You share files
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7. P2P torrent - torrentreactor
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8. P2P torrent BitTorrent
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9. P2P File sharing - future
Western countries are dealing with the problem of
spreading uncopyrighted content over the internet.
Internet providers are obliged to present server
logs to the police on request.
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10. FTP File sharing
Sharing content for exclusive users.
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11. FTP File sharing
Putting content available for download through
FTP protocol.
Usually placed on “exotic” servers. Very easy
to track users location.
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12. P2M File sharing
Files shared using mailboxes as
file holders
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13. P2M overview
Developed after introducing by Google high capacity
free, Gmail mailboxes. File divided into small parts,
downloaded directly from the mailbox. You need to
provide the hashcode. Very secure method of
distributing content.
Google is very dedicated to closing down
mialboxes used for P2M downloads.
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14. P2M hashcode
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15. P2M Ygoow (1)
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16. P2M Ygoow (2)
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17. HTTP File sharing
Files shared using servers for storage
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18. HTTP overview
Uploading and downloading files onto storage servers.
Providers do restrict no responsibility for submitted
content. Providers offer commercial premium
download accounts. Rapidshare is most popular
Providers delete un-copyrighted files on request.
Many servers closed due to legal reasons.
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19. HTTP premium accounts
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20. HTTP free accounts (1)
...download limits
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21. HTTP free accounts (2)
...parallel downloading
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22. HTTP free accounts (3)
...downloading managers
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23. Thank You!
michal@laskowski.edu.pl
Source: Michał Laskowski