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The passing of FiftyOneFifty

It is with deep sadness we announce that another of our hosts and friends Donald Grier, known to us as FiftyOneFifty, has passed away.

FiftyOneFifty's frat brother Randy Hall has written an lovely piece. The team at Linuxlugcast are preparing our own tribute if you want to contribute an audio file you can email Honkeymagoo or join the show.

Our thoughts go out to his friends and family at this difficult time.


hpr2791 :: LUKS like truecrypt

Klaatu demonstrates how to use LVM and cryptsetup to create and use portable encrypted filesystems

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Hosted by klaatu on 2019-04-15 is flagged as Clean and is released under a CC-BY-SA license.
Tags: encryption.
Listen in ogg, spx, or mp3 format. | Comments (0)

Part of the series: Privacy and Security

In this open series, you can contribute shows that are on the topic of Privacy and Security

Create an empty file of a predetermined size:

$ fallocate --length 512M foo.img

Create a LUKS container on it:

$ cryptsetup --verify-passphrase luksFormat foo.img

Set it up:

$ sudo cryptsetup luksOpen foo.img foo
$ ls /dev/mapper
foo
$

Make a file system on it:

$ sudo mkfs.ext2 /dev/mapper/foo

If you don't need it for anything now, you can close it:

$ sudo cryptsetup luksClose foo
$ ls /dev/mapper
$

Mount it as a usable filesystem:

$ sudo mkdir /crypt
$ sudo mount /dev/mapper/foo /crypt

Depending on your system configuration, you may need to set up reasonable permissions:

$ sudo mkdir /crypt/mystuff
$ sudo chown klaatu:users /crypt/mystuff
$ sudo chmod 770 /crypt/mystuff
$ echo "hello world" >> /crypt/mystuff/file.txt

When you're finished using your encrypted vault, unmount and close it:

$ sudo umount /crypt
$ sudo cryptsetup luksClose foo

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