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Developer Shares Hands-On Amazon S3 Labs Covering Security, Encryption and Lifecycle

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A developer published a practical walkthrough of Amazon S3 features commonly used in AWS storage workflows, focusing on implementation and verification rather than theory. The labs covered bucket configuration, lifecycle management, IAM and EC2-based bucket policies, SSE-KMS encryption with CloudTrail verification, pre-signed URLs, CLI sync, versioning, static website hosting, CORS, and Object Lock. Lifecycle rules were configured to automatically transition objects from Standard storage to Standard-IA after 30 days and Glacier Flexible Retrieval after 90 days. Bucket policies were tested to allow specific IAM user read access, EC2 role upload access, and to explicitly deny all non-HTTPS requests using the aws:SecureTransport condition. The post serves as a companion to two earlier theoretical S3 sessions and emphasizes real-world configuration, troubleshooting, and behavioral verification.

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