Network isolation for Amazon EFS

As a managed service, Amazon Elastic File System is protected by AWS global network security. For information about AWS security services and how AWS protects infrastructure, see AWS Cloud Security. To design your AWS environment using the best practices for infrastructure security, see Infrastructure Protection in Security Pillar AWS Well‐Architected Framework.

You use AWS published API calls to access Amazon EFS through the network. Clients must support the following:

• Transport Layer Security (TLS). We require TLS 1.2 and recommend TLS 1.3.

• Cipher suites with perfect forward secrecy (PFS) such as DHE (Ephemeral Diffie-Hellman) or ECDHE (Elliptic Curve Ephemeral Diffie-Hellman). Most modern systems such as Java 7 and later support these modes.

Additionally, requests must be signed by using an access key ID and a secret access key that is associated with an IAM principal. Or you can use the AWS Security Token Service (AWS STS) to generate temporary security credentials to sign requests.

These APIs are callable from any network location, but Amazon EFS does support resource-based access policies which can include restrictions based on the source IP address. You can also use Amazon EFS policies to control access from specific Amazon Virtual Private Cloud (Amazon VPC) endpoints, or specific VPCs. Effectively, this isolates network access to a given Amazon EFS resource from only the specific VPC within the AWS network.