backup-luks

Convenient wrapper for running encrypted backups with rsync and as cronjobs. Uses dm-crypt.

Install

Arch package

How to use

Steps 1-3 are required only once.

1. Ensure you have a valid partition for your device

Normally you should have a partition table, if not run

create_partition /dev/sdb

(it will create a GPT table and one main partition)

2. Create a new encrypted disk

For convenience you can use

create_disk /dev/sdb1 /path/to/place/your/secure/luks/keys

you can also use stdin for the password

echo "awesome_pwd" | create_disk /dev/sdb1 /path/to/place/your/secure/luks/keys

3. Rename backup-example & fill in the variables

4. Run the backup script

./backup-example

5. Optional: Setup cronjobs

Hardlinks

Rsync can create a new folder and hardlink unchanged folders. This allows you to have an incremental snapshot versionion (like Time Machine).

yourconfig

bakFolder="archi_"`date +"%x_%H_%M"`
withHardLinks=1

rsync info about --link-dest

This option behaves like --copy-dest, but unchanged files are hard linked from DIR to the destination directory. The files must be identical in all preserved attributes (e.g. permissions, possibly ownership) in order for the files to be linked together. This option works best when copying into an empty destination hierarchy

Security

Store your luksKeys on secure folder

Requirements

• dm-crypt (Linux kernel > 2.6)
• bash
• notify-send

optional:

• gdisk (for the partitioning step)
• python, gtk3, python-gobject (for notification icons)
• cronic (for cronjobs)

Cronjobs

15 */2 * * * /usr/bin/cronic <path-to-repo>/backup/backup-example -c

(this runs the cron job every two hours)

License

This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with this program. If not, see http://www.gnu.org/licenses/.