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Ubuntu One is an OpenID-based single sign-on service operated by Canonical Ltd. to allow users to log onto many Canonical-owned Web sites. Until April 2014, Ubuntu One was also a file hosting service and music store that allowed users to store data "in the cloud". The service enabled users to store files online and sync them between computers and mobile devices, as well as stream audio and music from cloud to mobile devices. In April 2014, Canonical announced that the cloud storage and synchronization features would be shut down at the end of July 31 of 2014, leaving the sign-on features intact. ==Features== Ubuntu One had a client application that ran on Ubuntu 9.04 and later, Windows XP or newer, and Mac OS X 10.6 and higher. Other Linux distributions not running GNOME were supported through a console client. The source code is available through launchpad and can easily be compiled for other Unix-like operating systems such as FreeBSD. There was an Ubuntu One music app for iOS devices.〔(【引用サイトリンク】title=Ubuntu One: Downloads )〕 A free Ubuntu One account offered 5 GB of storage. The Ubuntu One service was similar to services such as Microsoft OneDrive, iCloud, Dropbox, Google Play Music, Amazon Cloud Player. Its client code was written in Python. It used Twisted for its low-level networking and Protocol Buffers for protocol description. Data was synced over a custom protocol called "u1storage", and stored on Amazon S3.〔(【引用サイトリンク】url=https://wiki.ubuntu.com/UbuntuOne/TechnicalDetails )〕 Ubuntu One offered automatic upload of photos taken from Android mobile devices for immediate synchronization across computers; integration with Mozilla Thunderbird for contacts and with Tomboy for notes due to the access to the local CouchDB instance.〔 〕 It also had capabilities for purchasing DRM-free music while synchronizing them automatically with an Ubuntu One Account via the Ubuntu One Music Store (in partnership with 7digital). Ubuntu One published APIs for developers wishing to build applications with file and data synchronization or music streaming. An Ubuntu One account gave users access to the Canonical Store, Launchpad, Ubuntu One and other Ubuntu services; an Ubuntu One account allowed users to store files within the cloud, store their contacts details within the interface, access the Ubuntu One Music Store to buy music from and activate the Ubuntu Software Center. Other sites that support OpenID authorization also had support for Ubuntu One. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Ubuntu One」の詳細全文を読む スポンサード リンク
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