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Document ATTIC_PASSPHRASE

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Jonas Borgström 2013-07-30 21:51:21 +02:00
parent 2e237ad006
commit 41c18f950b
2 changed files with 17 additions and 1 deletions
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14
docs/faq.rst
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@ -7,7 +7,8 @@ Frequently asked questions
Which platforms are supported?
------------------------------
Currently Linux and MacOS X are supported.
Currently Linux, FreeBSD and MacOS X are supported.
Can I backup VM disk images?
----------------------------
@ -15,6 +16,7 @@ Can I backup VM disk images?
Yes, the :ref:`deduplication <deduplication_def>` technique used by |project_name|
makes sure only the modified parts of the file are stored.
Which file attributes are preserved?
------------------------------------
@ -30,3 +32,13 @@ The following attributes are preserved:
.. Note::
POSIX Access Control Lists (ACL_) are not yet preserved.
How can I specify the encryption passphrase programmatically?
-------------------------------------------------------------
The encryption passphrase can be specified programmatically using the
`ATTIC_PASSPHRASE` environment variable. This is convenient when setting up
automated encrypted backups. Another option is to use
key file based encryption with a blank passphrase. For more details see
:ref:encrypted_repos

4
docs/generalusage.rst
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@ -66,6 +66,10 @@ Passphrase based encryption
PBKDF2_ key derivation function. This method is convenient to use and
secure as long as a *strong* passphrase is used.
.. Note::
For automated backups the passphrase can be specified using the
`ATTIC_PASSPHRASE` environment variable.
Key file based encryption
This method generates random keys at repository initialization time that
are stored in a password protected file in the ``~/.attic/keys/`` directory.