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AWS EBS Encryption Simplified : Protecting Your Cloud Data Effectively
- AWS offers a variety of services for data storage on the AWS Cloud, including Amazon S3 and Amazon Elastic Block Store (EBS).
- Security is a top priority when storing data on AWS as unencrypted data can be an easy target for attackers that gain access to your AWS environment.
- Encrypting your EBS volumes is an effective way to protect your data at rest, secure backups created from the volume, and snapshots copied from it.
- There are two key methods for encrypting EBS volumes: Default Encryption and Encrypting Existing Non-Encrypted Volumes.
- Enabling Default Encryption on EC2 Dashboard automatically encrypts new EBS volumes during creation.
- To encrypt an existing non-encrypted volume, a snapshot of the non-encrypted volume must be taken. The snapshot must be copied and encrypted, then a new volume from the encrypted snapshot can be created and the non-encrypted volume detached and replaced with the encrypted volume.
- Steps for encrypting an existing non-encrypted volume include taking a snapshot of the non-encrypted volume, copying and encrypting the snapshot, creating a volume from the encrypted snapshot, detaching the non-encrypted volume, and attaching the encrypted volume to the EC2 instance.
- It is recommended to test the steps in a test environment before proceeding to production.
- The Availability Zone of the EC2 instance, EBS, and volume should be noted to ensure correct actions are taken.
- It is necessary to stop the EC2 instance before detaching the non-encrypted volume and attaching the encrypted volume, which may result in application downtime.
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