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Secure ML Data Access with Private S3 Connectivity

In this hands-on lab, you will design and secure access to a machine learning dataset stored in Amazon S3. You will begin by creating an S3 bucket and enabling public access to simulate an insecure baseline. Next, you will transition to a secure architecture by creating a VPC endpoint, associate route table, and apply least-privilege IAM policies to restrict access. Finally, you will validate that the dataset can be accessed only through a private network path from an EC2-based ML workload, while public access is revoked. This lab demonstrates how to implement secure, private, and compliant data access patterns for real-world ML workflows in AWS.

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Lab Info
Level
Intermediate
Last updated
May 21, 2026
Duration
1h 0m

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Table of Contents
  1. Challenge

    Create Storage and Components with Public Access
    • Create a S3 bucket.
    • Make its content public by setting bucket access policy
    • Upload ML dataset to the bucket
    • Validate public access to the uploaded file using URL
    • Author Notes: Ensure learners disable “Block Public Access” before applying the public policy.
  2. Challenge

    Configure the Storage and Network Connectivity Components for Private Access
    • Create VPC Gateway Endpoint for S3
    • Verify Route Table Configuration
  3. Challenge

    Create ML Workload (EC2 Instance)
    • Launch EC2 Instance
    • Attach IAM Role to EC2 instance
    • Test S3 Access using EC2
  4. Challenge

    Test the Storage and Network Connectivity Components
    • Remove Public Access from S3
    • Restrict S3 Access to VPC Endpoint Only
    • Validate Secure Private Access using EC2
    • Confirm public access is revoked using URL
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