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I have a debian based server at home using banana-pro. One of its functions is being a backup/owncloud/nas. There is a sata drive attached to it and I want it to be encrypted. I know that for a pc I could use truecrypt. I'd like this drive to automount and unencrypt on bootup with server. It would be also really nice if I could plug it into another computer and access the files on it with a password. Is something like this easily doable?

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  • If you want automount on bootup that means the key needs to be present without human interaction. So what's the point of the encryption if the key is present anyway? The defeats the purpose.
    – Marco
    Commented Nov 20, 2015 at 17:28
  • Not that much. If somebody gets access to the server, he will be able to access the data, but if he gets only hdd he won't be able to do a thing.
    – fulaphex
    Commented Nov 20, 2015 at 17:35
  • I agree with Marco. The point of having a server encrypted with encryption keys on it is flawed.
    – Rui F Ribeiro
    Commented Nov 20, 2015 at 17:43
  • But what else can I do? If I won't have the encryption keys on server I will have to unencrypt it every time I restart the sever. Is there a smarter way of doing it?
    – fulaphex
    Commented Nov 20, 2015 at 17:50
  • There is a point to having an encrypted disk with the key present on the server. If nothing else, it makes it easy to revoke access (scrub the key out of /boot or wherever). Or you could put the key on a USB stick and leave it plugged in; then you can take the USB stick away whenever you want real security.
    – Tom Hunt
    Commented Nov 20, 2015 at 17:53

1 Answer 1

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If you want to encrypt a disk, you would want to use LUKS.

I will leave you the relevant page:

http://www.cyberciti.biz/hardware/howto-linux-hard-disk-encryption-with-luks-cryptsetup-command/

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  • Thanks. Will I be able to access this drive later on with another OS'es? Prefferably Mac and maybe Windows?
    – fulaphex
    Commented Nov 20, 2015 at 17:47
  • Last time I check, in OS/X only within a Linux VM. No idea about support for Windows.
    – Rui F Ribeiro
    Commented Nov 20, 2015 at 17:56

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