##(see the SpecSpec for an explanation)

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 * '''Launchpad entry''': [[https://features.launchpad.net/distros/ubuntu/+spec/dijjer-iso-downloads|dijjer-iso-downloads]]
 * '''Packages affected''': 

== Summary ==
Using Dijjer to help host Ubuntu CD iso downloads could dramatically reduce bandwidth expenses.


== Rationale ==
Dijjer is far easier to use than Bittorrent and is a superior technology for this sort of distribution.

Dijjer has the following advantages:

 * Downloads happen in your browser.
 * Works for Windows, Mac, and Linux.
 * The Dijjer source code is free, open source, and available to everyone.
 * Gets through firewalls using [[http://en.wikipedia.org/wiki/NAT_Traversal|NAT traversal]], so can be used by non-technical users - unlike Bittorrent.
 * Bittorrent is forbidden by many ISPs and organisations. Dijjer is not.

More information is available here: http://dijjer.org/wiki/FrequentlyAskedQuestions

I used Dijjer to download the Kororaa live CD and it worked perfectly.

== Use cases ==
1. Non technical Windows user trys to download ISO from Ubuntu.com

2. Downloads dijjer client

3. Clicks Ubuntu ISO download link

4. Shares his upload bandwidth in a peer-to-peer connection with other other dijjer downloaders.

== Scope ==
Reducing bandwidth costs in distributing Ubuntu online.

== Design ==
N/A

== Implementation ==
Trivial. Simply change the download links for Ubuntu ISOs.

normal link: http://mysite.com/ubuntuedgy.iso

dijjer link: http://dijjer.org/get/http://mysite.com/ubuntuedgy.iso

=== Code ===
N/A

=== Data preservation and migration ===
N/A

== Unresolved issues ==
None

== BoF agenda and discussion ==

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CategorySpec