Recovering a Failed Automatic Proxy Group with a Local Failover Guard
How request-based health checks, bounded local control, and explicit ownership turned a stale automatic proxy group into a recoverable connection path.
TYPECategories
DevOps
9 articles
When FFmpeg Reports a Corrupt WAV Tail, Inspect the Length Headers
How binary header inspection separated a WAV container-length defect from damaged audio, and how a verified rewrite made the file safe for stricter media pipelines.
Turning a Long-Term Learning Roadmap into an Evidence-Driven Feedback Loop
How idempotent daily plans, evidence-gated completion, spaced review, and bounded load changes turn a long roadmap into an executable learning system.
Assigning Incrementing Job IDs Without Duplicating Paid Work on Retry
How a stable allocation key and a process lock let a recurring paid pipeline create several jobs per period without duplicating work when a scheduled run retries.
Hibernating a Cloud Deployment to Zero Paid Resources Without Losing Recovery Proof
A recovery-first procedure for stopping a cloud workload, releasing every paid resource, and preserving evidence that the system can be restored.
Fixing Incorrect Direct Access with a Domain-Specific Proxy Rule
A local connectivity incident resolved by proving the remote service was healthy, isolating incorrect direct routing, and adding one precise proxy rule.
Launching Codex Without TUN Using the Current Windows Proxy
Making a Codex desktop launcher resilient to local proxy port changes while keeping failure handling safe.
Tracing Dubbo Connection Refused to a Container Memory Failure
A Dubbo connection failure investigation that moved from the deepest network exception to a stopped provider container and its memory limits.
Historical Note: Recovering fichil.com from a VPS Connection Refusal
A retained historical incident note: diagnosing the former fichil.com VPS from DNS and network reachability through listening ports, Nginx, and site files. Production now runs on Sites.