Controlling network access to Amazon EFS file systems for NFS clients - Amazon Elastic File System
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Controlling network access to Amazon EFS file systems for NFS clients

You can control access by NFS clients to Amazon EFS file systems using network layer security and EFS file system policies. You can use the network layer security mechanisms available with Amazon EC2, such as VPC security group rules and network ACLs. You can also use Amazon IAM to control NFS access with an EFS file system policy and identity-based policies.

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