Duck Cloud Blog
Tutorials, SEO-friendly explainers, and step-by-step articles that link directly to the tools they describe.
Security
Reduce screen-sharing leaks with a dedicated window, permission review, notification controls, participant checks, and a clear policy for recording and remote access.
Oct 15, 2026
Read nowInfrastructure
Diagnose RPKI route origin validation failures by checking the announced prefix, origin ASN, ROA prefix length, validator freshness, and rollout evidence.
Oct 15, 2026
Read nowInfrastructure
Evaluate internet route diversity beyond carrier names by checking cable paths, landing sites, shared facilities, restoration options, and application failover.
Oct 15, 2026
Read nowArtificial Intelligence
Compare approximate vector indexes against exact nearest neighbors, then test filtered recall, tail latency, updates, memory, and reproducible search settings.
Oct 15, 2026
Read nowSoftware Engineering
Retire feature flags with an owner, usage evidence, dependency review, staged code removal, and a rollback plan that does not depend on a deleted switch.
Oct 15, 2026
Read nowSoftware Engineering
Design reconnecting WebSocket clients with durable cursors, duplicate handling, replay limits, explicit gap recovery, and tests for interrupted connections.
Oct 15, 2026
Read nowSecurity
Implement and test OAuth PKCE with S256, per-flow verifier handling, strict callback binding, and negative tests that keep login security controls separate.
Oct 15, 2026
Read nowInfrastructure
Distinguish an S3 delete marker from permanent version deletion, inspect the exact object history, and verify a controlled recovery without broad bucket changes.
Oct 15, 2026
Read nowSoftware Engineering
Diagnose stale reads from PostgreSQL replicas with routing checks, replay observations, session consistency tests, and a bounded primary-read fallback.
Oct 15, 2026
Read nowSoftware Engineering
Check whether a Go HTTP client reuses connections with tracing, realistic response bodies, bounded requests, and tests that separate protocol behavior from latency.
Oct 15, 2026
Read nowBusiness and Finance
Compare rented and owned GPU capacity using useful hours, utilization, support, power, idle time, capacity risk, and transparent break-even scenarios.
Oct 15, 2026
Read nowBusiness and Finance
Evaluate invoice factoring with a worked cash example, recourse questions, reserve reconciliation, customer-payment controls, and a clear contract review checklist.
Oct 15, 2026
Read now