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.. include:: global.rst.inc
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Darc
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====
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|project_name| is a Deduplicating ARChiver written in Python.
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The main goal of darc is to provide an efficient and secure way to backup data.
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Main Features
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-------------
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Space efficient storage
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Variable block size `deduplication`_ is used to reduce the number of bytes
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stored by detecting redundant data. Each file is split into a number of variable
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length chunks and only chunks that have never been seen before are compressed
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and added to the repository.
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Optional data encryption
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All data can be protected using 256-bit AES_ encryption and data integrity
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and authenticity is verified using `HMAC-SHA256`_.
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Off-site backups
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|project_name| can store data on any remote host accessible over SSH as long as
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|project_name| is installed.
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Easy to use
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-----------
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Initialize a new backup :ref:`repository <repository_def>` and create your first
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backup :ref:`archive <archive_def>` in two lines::
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$ darc init /usbdrive/my-backup.darc
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$ darc create -v /usbdrive/my-backup.darc::documents ~/Documents
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See the :ref:`generalusage` section for more detailed examples.
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Easy installation
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-----------------
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You can use pip to install |project_name| quickly and easily::
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$ pip install darc
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Need more help with installing? See :ref:`installation`
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User's Guide
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============
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.. toctree::
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:maxdepth: 2
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installation
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generalusage
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faq
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definitions
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Contribute
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==========
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Found a bug? Have any ideas to improve |project_name|?
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Head over to |project_name|'s github_ page and create an issue or a pull request.
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You can also ask the author a question directly by `email <mailto:jonas@borgstrom.se>`_.
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