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- Elastic Cache – In Memory Cache
- Encryption of the Database
- Encryption at REST is supported for MySQL, Oracle, SQL, PostgreSQL, MariaDB and Aurora.
- Encryption is done by AWS KMS service (Key Management Service).
- Once the RDS instance is encrypted. The data stored at REST in the underlying storage is encrypted.
- This is applicable for Automated, Read Replicas and Snapshots.
- At present, Encryption of the existing database is not supported. To use Amazon RDS encryption for the existing database, you must first create a snapshot, make a copy of that snapshot and encrypt the copy.