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Configure At Rest Encryption for EFS

Amazon Elastic File System (EFS) provides incredible scalability for your storage requirements, making it easy to share data across hundreds or even thousands of EC2 instances. In this lab, you will create an Amazon Elastic File System in the `us-east-1` Region with encryption enabled. You will also configure mount targets for this file system, enforce encryption in flight, and finally, mount the file system to a pre-created EC2 instance.

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Path Info

Clock icon Intermediate
Clock icon 45m
Clock icon Jul 14, 2021

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Table of Contents

  1. Challenge

    Create an EFS File System Named devshare with Encryption Enabled

    • Create an EFS file system with the name of devshare.
    • Leave default creation settings with encryption enabled.
  2. Challenge

    Create a Mount Target for EFS Using EFSMountSecurityGroup

    Select your new EFS file system and navigate to the Network tab. Add the EFSMountSecurityGroup security group to each mount target to ensure your EC2 instance will have access to this volume.

  3. Challenge

    Apply a File System Policy to the EFS Volume to Enforce In-Transit Encryption for All Clients

    Create a file system policy for the EFS volume to enforce in-transit encryption for all of your clients.

  4. Challenge

    Mount the EFS Volume to the EC2 Instance and Create a File on the Elastic File System

    Connect using cloud_user credentials.

    Use the following command to mount your volume with encryption in flight, replacing fs-00000000 with your file system ID:

    • Example structure: sudo mount -t efs -o tls file-system-id efs-mount-point/

    • Example command mounting to local EFS directory you have created: sudo mount -t efs -o tls fs-000000000 /efs

    Verify the volume is ready for use by creating a file: sudo touch /efs/llama.txt

    Note: Keep in mind that without adding this to the /etc/fstab, the mount will not persist through a reboot. In this case, you are only preparing the volume for use by your team, so that's okay in this lab.

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