Lab
A Cloud Guru

Creating a New Encrypted Volume Using LUKS

In this hands-on lab, we will use Linux Unified Key Setup (LUKS) to encrypt a volume on a Red Hat host. Then we'll go through the process of unmounting and closing the volume and re-opening and re-mounting the volume, which is standard practice for encrypted volumes not mounted at boot. *This course is not approved or sponsored by Red Hat.*

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Path Info

Level

Intermediate

Duration

30m

Published

May 17, 2019

Challenge

Create a New Logical Volume
1. Run the vgs command to view a list of available volume groups.
2. Next, run lvcreate -L 100M -n patient_lv luks_vg to create a new logical volume.
3. Run the lvs command to verify that the new logical volume was created.
Challenge

Encrypt the Volume with LUKS
1. Run the following command:
```
cryptsetup luksFormat /dev/mapper/luks_vg-patient_lv
```
1. Type YES at the prompt.
2. Enter the passphrase Pinehead1! at the next two prompts.
3. Next, run the command blkid | grep patient, and check for TYPE=crypto_LUKS in the output.
4. Next, format the volume with the following command:
```
cryptsetup luksOpen /dev/mapper/luks_vg-patient_lv patient_lv
```
1. Enter the passphrase Pinehead1! at the prompt.
2. Next, run the command ls /dev/mapper, and check for patient_lv in the output.
3. Run the following command to overwrite all of the storage on the new volume:
```
shred -v -n1 /dev/mapper/patient_lv
```
1. Next, format the new volume using ext4 with the following command:
```
mkfs.ext4 /dev/mapper/patient_lv
```
1. Next, mount the volume to /data.
```
mount /dev/mapper/patient_lv /data
```
1. Run the command ls /data, and check for lost+found in the output.
2. Check the status of the new encrypted volume.
```
cryptsetup -v status patient_lv
```
Challenge

Create a Test File on the New Volume
1. Run the command touch test.txt /data to create the test file.

Author

A Cloud Guru

The Cloud Content team comprises subject matter experts hyper focused on services offered by the leading cloud vendors (AWS, GCP, and Azure), as well as cloud-related technologies such as Linux and DevOps. The team is thrilled to share their knowledge to help you build modern tech solutions from the ground up, secure and optimize your environments, and so much more!

What's a lab?

Hands-on Labs are real environments created by industry experts to help you learn. These environments help you gain knowledge and experience, practice without compromising your system, test without risk, destroy without fear, and let you learn from your mistakes. Hands-on Labs: practice your skills before delivering in the real world.