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Lessons (3)

• Scaling, Load Balancing & Rate Limiting

  … 6. Protection: enforce request-size limits, quotas, access rules or WAF policies. 7. Deployment support: drain old instances …

• CloudFront: Faster Websites and Safer File Delivery

  … Avoid frequently invalidating every path; invalidations cost time and can cost money. Protection AWS WAF can block common …

• Practical Lab: S3 File Upload and CloudFront Delivery with NestJS

  … standard logging or real-time metrics - [ ] Add AWS WAF rate limiting if the upload route is public - [ ] Add …