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This article mainly introduces "how to create an encrypted file vault on Linux". In daily operation, I believe many people have doubts about how to create an encrypted file vault on Linux. Xiaobian consulted all kinds of materials and sorted out simple and easy-to-use methods of operation. I hope it will be helpful to answer the questions of "how to create an encrypted file vault on Linux". Next, please follow the editor to study!

1. Create an empty file

First, you must create an empty file of a predetermined size. It's like a vault or safe where you can store other files. The command you use is fallocate in the util-linux package:

$fallocate-- length 512m vaultfile.img

This example creates a 512MB file, but you can make your file any size you want.

2. Create a LUKS volume

Next, create an LUKS volume in the empty file:

$cryptsetup-- verify-passphrase\ luksFormat vaultfile.img3, open the LUKS volume

To create a file system that can store files, you must first open the LUKS volume and mount it to your computer:

$sudo cryptsetup open\-type luks vaultfile.img myvault$ ls / dev/mappermyvault4, create a file system

Create a file system in the vault you open:

$sudo mkfs.ext4-L myvault / dev/mapper/myvault

If you don't need it to do anything now, you can turn it off:

$sudo cryptsetup close myvault5, start using your encrypted vault

Now that everything is set up, you can use your encrypted file library whenever you need to store or access private data. To access your vault, you must mount it as an available file system:

$sudo cryptsetup open\-type luks vaultfile.img myvault$ ls / dev/mappermyvault$ sudo mkdir / myvault$ sudo mount / dev/mapper/myvault / myvault

This example uses cryptsetup to open the vault and mount the vault from / dev/mapper to a new directory called / myvault. Like any volume on Linux, you can mount LUKS volumes anywhere you want, so you can use / mnt or ~ / myvault or any location you like except / myvault.

When it is mounted, your LUKS volume will be decrypted. You can read and write to it like you read and write to a file, as if it were a physical drive.

When you have finished using your encrypted vault, please uninstall it and close it:

$sudo umount / myvault$ sudo cryptsetup close myvault encrypted file vault

The images you encrypt with LUKS, like other files, are removable, so you can store your vault on your hard drive, external hard drive, or even the Internet. As long as you can use LUKS, you can decrypt, mount and use it to ensure your data security. Easy encryption, improve data security, might as well give it a try.

At this point, the study on "how to create an encrypted file vault on Linux" is over. I hope to be able to solve your doubts. The collocation of theory and practice can better help you learn, go and try it! If you want to continue to learn more related knowledge, please continue to follow the website, the editor will continue to work hard to bring you more practical articles!

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