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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? 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? 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| Yes, the :ref:`deduplication <deduplication_def>` technique used by |project_name|
makes sure only the modified parts of the file are stored. makes sure only the modified parts of the file are stored.
Which file attributes are preserved? Which file attributes are preserved?
------------------------------------ ------------------------------------
@ -30,3 +32,13 @@ The following attributes are preserved:
.. Note:: .. Note::
POSIX Access Control Lists (ACL_) are not yet preserved. 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 PBKDF2_ key derivation function. This method is convenient to use and
secure as long as a *strong* passphrase is used. 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 Key file based encryption
This method generates random keys at repository initialization time that This method generates random keys at repository initialization time that
are stored in a password protected file in the ``~/.attic/keys/`` directory. are stored in a password protected file in the ``~/.attic/keys/`` directory.