Share application files between servers with Amazon Elastic File System (EFS). Three guided labs teach shared uploads, access-point directories and mount diagnosis; an independent challenge brings those skills together when uploaded files appear to disappear on another server.
What You Will Learn
- Create an encrypted EFS file-system configuration and a mount target in the application subnet.
- Restrict TCP 2049 access to the application security group and mount through the official EFS helper with TLS.
- Prove sharing with real NFS files, HTTP uploads and reads from two application hosts.
- Select access-point directory roots and POSIX identities, and understand where additional production authorization is needed.
- Separate network, mount and application-path faults, preserve original uploads and clean up only owned storage.
Who This Course Is For
This course is for beginners who have completed AWS VPC for Beginners and AWS EC2 and EBS for Beginners. Complete the guided labs before the challenge. Basic shell commands, security groups and instance concepts are assumed; the supplied upload application and SSH connections keep the focus on shared storage.
Each unit starts independently in a browser-based Linux VM with Terminal and AWS View. The AWS practice environment and application hosts are supplied; you do not need a personal AWS account or resources from an earlier VM.
Frequently Asked Questions
Is EFS the same as an EBS volume or an S3 bucket?
EFS offers a shared file-system interface accessed through NFS. This course uses ordinary files from two application hosts; EBS block-device operations and S3 object operations are covered separately.
Does an access point automatically authorize only one application?
It selects a directory root and can enforce a POSIX identity for its mount. Production authorization also requires suitable IAM and file-system policies. These exercises demonstrate the directory, identity and network boundaries they actually configure.
Do I build the application or provision all its servers?
The application and network prerequisites are supplied. You create storage in the first two labs, repair existing storage access in the third and diagnose inconsistent application storage in the challenge.
What do I remove when finished?
After functional checks, restore local upload paths, unmount shared storage and delete the owned access points, mount target, file system and storage group. Keep the supplied application/network fixtures and the unrelated reference workload.
Does this cover production availability, performance or the whole certification exam?
The hands-on scope uses one prepared availability zone and ordinary POSIX files. Selected CLF-C02 storage and networking topics support exam study, but production durability, performance, multi-AZ operations and complete exam coverage require additional study.
