AWS
Application Load Balancer vs Network Load Balancer: Choosing Right on AWS
A practical breakdown of when to use ALB versus NLB so you pick the right tool before traffic hits production.
ALB vs NLB on AWS: choose and test the request path
Choose ALB, NLB or both from your routing, TLS and address requirements. Check client IPs, health checks and failure behavior before cutover.
AWS Regional Recovery and Failure Boundaries
Map regional dependencies, prepare recovery capacity and data, and test the traffic switch without assuming that a second Region solves every failure.
Route 53 health checks and DNS failover you can test
Configure primary and secondary records, test what happens when both endpoints fail, and measure DNS answers separately from application recovery.
Survive an AWS zone failure with capacity and tested failover
Work out surviving capacity, trace load-balancer and NAT paths, and test database reconnects before relying on a multi-AZ design.
AWS Regions and Availability Zones: How to Architect Across Them
A practical guide to understanding AWS Regions and AZs, and the concrete patterns for building services that survive infrastructure failures.