LUKS (Linux Unified Key Setup) is a disk-encryption specification.

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LUKS storing keyfile in encrypted usb drive

I already asked once about LUKS unlocking of multiple HDDs in Linux: LUKS and multiple hard drives. Now I would like to know how to secure store the keyfile used for the automatic unlock of the ...
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Overwriting disk before encryption

I'm going to create encrypted lvm on my disk. As a encryption mechanism I choose dmcrypt with LUKS. Here's my question - should I overwrite (for security reasons) whole disk before creating encrypted ...
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Why are logical volumes used with LUKS partitions?

All of the instructions I've seen on setting up a LUKS encrypted drive require using logical volumes to create root and swap partitions inside a LUKS device. Why not just put standard partitions ...
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Automatically suspend luks volume after delay

Anyone have any ideas for how I can automatically do a luksSuspend on a luks volume after it's been unused for a certain amount of time. I was thinking of just scheduling a command with crontab or ...
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Prevent file access from hanging when luks volume is suspended

I've got a luks volume setup and mounted, and when not in use I suspend it with cryptsetup luksSuspend so it cannot be accessed. But if I forget it's suspended and try to do any kind of file access in ...
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How to remove LUKS encryption?

I tried removing LUKS encryption on my home directory using the following command: cryptsetup luksRemoveKey /dev/mapper/luks-3fd5-235-26-2625-2456f-4353fgdgd But it gives me an error saying: ...
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after adding one more physical volume and enlarging logical volume, grub fails

Several years ago I installed Debian on my 500 GiB hard disk. During installation I chose to have encrypted filesystem. So installer created one small unencrypted boot partition (I guess that grub ...
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How to choose LUKS encryption when installing RHEL 6?

With the default RHEL 6 installer, how can I choose the LUKS encryption? Afaik if I prepare the disk like cryptsetup luksFormat -c cast5-cbc-plain -s 128 /dev/$DEVICE could be the "fastest" ...
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How to mount a cryptsetup container just with `mount`?

I created an encrypted container via #!/bin/bash dd if=/dev/zero of=$1 bs=1 count=0 seek=$2 MAPPER=$(mktemp -up /dev/mapper) LOOPDEV=$(losetup --find --show $1) cryptsetup luksFormat $LOOPDEV ...
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How to decrypt an encrypted container via ssh without entering a passphrase while requiring some client authentication?

I log in to a server via public key authentication and then mount a container (using e.g. LUKS/dm-crypt or truecrypt). At the moment, I have to enter the container password manually. Is there a way to ...
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grub2 and cryptsetup

My root node is LUKS encrypted, and it uses a key file, instead of user input password to unlock it. I know in Grub2, I can use insmod cryptodisk insmod luks cryptomount -u <uuid> But I have ...
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Umount all attached usb disks with a single command

Is there a (safe) way to umount all partitions on all attached usb devices (usb-hdds, usb-sticks) with a single commandline command, including several encrypted luks partitions? Only the partitions ...
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How to salvage a lvm/luks install from custom install

I was battling with setting up a Mint install on an encrypted hard-drive, and I think I partially succeeded. But I cannot boot the system because some configuration is not correct, and since I'm a ...
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Which partitions should I encrypt?

My laptop is currently running Windows and Fedora, but I'm planning to install Arch Linux as my sole OS soon. This current setup is using whole disk encryption through TrueCrypt, but I'm unsure if it ...
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How can I shrink a LUKS partition, what does `cryptsetup resize` do?

I am in progress of resizing a LUKS encrypted partition that contains a single ext4 filesystem (no LVM or something). The cryptsetup FAQ recommends to remove the old partition and recreate it, but ...
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Are there more advanced LUKS key schemes, e.g. 2 of 3 keys needed?

It seems like the two main LUKS encryption options are: USB keyfile (see http://superuser.com/questions/149578/how-can-i-use-a-keyfile-on-a-removable-usb-drive-for-my-encrypted-root-in-debian) ...
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How to open a port early in boot process to unlock LUKS via SSH

I have a fully encrypted server running Debian 7 and have set up dropbear and busybox to unlock the LUKS container via SSH (as described in this tutorial and in this U&L answer). Unfortunately, ...
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Install Backtrack 5 r2 into running LUKS setup installed with ubuntu

One Harddisk (sda) Two Partions. With a working ubuntu running. 1) /boot 2) LVM with this virtual volumes/partions/ or whatever they are called inside: Swap Ubuntu Home Prepared for Backtrack Of ...
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Linux: LUKS and multiple hard drives

I have a Debian Linux system (amd64) installed on a RAID-1 system encrypted device (LVM on LUKS) and will have a RAID-6 of >=4 disks where I'll put my data (LUKS and maybe LVM). I think the basic ...
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RHEL6 LUKS with TPM support?

I'm surprised that this question is not asked more frequently, but (in RHEL) does LUKS support TPM's the way that Windows BitLocker does? If so, how is this feature implemented, and does it provide ...
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LUKS encryption for tape media?

I was wondering, if it was possible to use LUKS encryption with tape drives, QIC for instance. I'm using LUKS for USB drives and internal disks, even DVDs and CDROMs. But I was thinking of maybe ...