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Lessons (8)

• How a Web Request Works

  Follow one click from the browser to the server and back, through DNS, TCP, TLS, HTTP, load balancers …

• Services & Ingress

  … nginx tls: - hosts: [shop.example.com, api.shop.example.com] secretName: shop-tls rules: - host: shop.example.com …

• API Gateway, BFF & Service Discovery

  … networking as infrastructure As services multiply, every one needs retries, timeouts, mutual TLS, metrics and tracing. Instead of …

• Releases, Observability and Production Safety

  … Protect traffic with TLS, encrypt sensitive data at rest, rotate secrets, use least-privilege RBAC, and audit sensitive …

• API Contracts, Gateways and Security

  … Use TLS, rate limits, audit logs and secrets management.

• Proxies, APIs and Real-Time Protocols

  … it can terminate TLS, route, cache and rate-limit. A queue is not a WebSocket, and a WebSocket …

• Networking, DNS and Traffic Routing

  … HTTP and can route by host/path, terminate TLS and apply policies. Monitor DNS TTL/propagation, edge health …

• Scaling, Load Balancing & Rate Limiting

  … to API servers and /images/ to storage, terminate TLS, add headers. Examples: NGINX, HAProxy, AWS ALB, Envoy. Stateless …