How to Create a disk partition in the RHEL6.0 Encrypted File System

Linux implements the encrypted file system. luks is the encryption standard for Linux hard disks. Mainly used: luksFormat, luksOpen, luksClose, luksAddKey and other parameters and manual creation of/etc/crypttab first we create a disk partition/dev/sdb5 without formatting households 1. Encrypted partitioning # cryptsetupluksFormat/dev/sdb5AreyousureTyp

Linux implements the encrypted file system. luks is the encryption standard for Linux hard disks.

You can use luksFormat, luksOpen, luksClose, luksAddKey, and other parameters to manually create/etc/crypttab.

First, create a disk partition/dev/sdb5 without formatting.

1. Encrypted partitioning

# Cryptsetup luksFormat/dev/sdb5

Are you sure Type Uppercase yes: YES

Enter luks passphrase: 123

Verify passphase: 123

2. decrypt the partition

Cryptsetup luksOpen/dev/sdb5 secret (mapped to secret)

Enter passphrase for/dev/sdb5:

3. Create a mount point

# Mkdir/mnt/test/secret

4. Format

Mke2fs-t ext4/dev/mappper/secret

5. hanging in a partition

# Mount/dev/mapper/mnt/testsecret

6. Detach a partition

# Umount/dev/mapper/secret

# Cryptsetup luksClose secret

7. Automatic Configuration mounting

Add the following lines to. etc/fstab:

/Dev/mapper/secret/mnt/testsecret ext4 defaults 0 0

Create a/etc/crypttab File

Add

Secret/dev/sdb5/root/testpasswd

Create Password File

Echo "123">/root/testpasswd

Chmod 600/root/testpasswd

Add a key file

# Cryptsetup luksAddKey/dev/sdb5/root/testpasswd

The host is successfully restarted.