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Am 02.01.2012 09:07, schrieb Stéphane Guedon: |
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> Hi all |
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> |
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> I may ask something already discussed, but I can't find any good documentation. |
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> I am wondering of how to secure my home repository on my laptop. I am thinking |
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> of cryptography and other things (the password uncrypt the repository and |
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> allows to read files...). |
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> |
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> What tool to use for ? Anybody knows a good doc (in french would be really |
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> good) ? |
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> |
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> I am not really paranoïd, but I work now in a quite important environnement |
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> and want any data I get out to be secured... |
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|
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I recommend dm-crypt (a.k.a. cryptsetup-luks). It encrypts the block |
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device under the actual file system. Gentoo wiki has some tutorials on |
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it (although you don't need much of it): [1] [2] |
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|
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If you only want to encrypt your home partition, you only need to follow |
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these steps: |
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|
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1. Create an encrypted partition (see `man cryptsetup`) |
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2. Move /home/* over to it (don't forget backup) |
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3. Configure /etc/conf.d/dmcrypt |
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4. Add /etc/init.d/dmcrypt to boot runlevel |
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|
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Then the init script will ask you for the password at boot. dm-crypt |
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allows multiple passwords per partition so that different users can have |
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different passwords. |
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|
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The alternative to the dmcrypt init script is to use sys-auth/pam_mount. |
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It allows you to use the login password to automatically decrypt a |
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partition and mount it as /home/$user. [2] has a section about it. |
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However, this breaks easily and is pretty hard to administrate if you |
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have no experience with dm-crypt and pam. I recommend the first solution. |
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|
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[1] |
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http://en.gentoo-wiki.com/wiki/SECURITY_System_Encryption_DM-Crypt_with_LUKS |
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[2] http://en.gentoo-wiki.com/wiki/DM-Crypt |
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|
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Regards, |
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Florian Philipp |
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