App traffic is allowed, yet name resolution fails because the helper path no longer matches policy assumptions. The explicit configuration seems correct, yet an inherited policy no longer resolves the same way under the cleaned hierarchy. Effective ownership looks correct at first glance, but one delegated path still reflects the old hierarchy. Nominal permissions look aligned, yet one delegated control path still reflects the retired operating model.
A NetworkPolicy permits the application path
App traffic is allowed, yet name resolution fails because the helper path no longer matches policy assumptions. The explicit configuration seems correct, yet an inherited policy no longer resolves the same way under the cleaned hierarchy. Effective ownership looks correct at first glance, but one delegated path still reflects the old hierarchy. Nominal permissions look aligned, yet one delegated control path still reflects the retired operating model.
- Identify the primary failure signal in the App Allowed, Node-local DNS Helper Blocked scenario.
- Separate visible symptoms from the underlying technical dependency.
- Describe the safest recovery path and the follow-up prevention work.
- Summarize the current impact and the last known change.
- Collect direct evidence from logs, runtime state, and configuration before changing anything.
- Separate immediate recovery from permanent prevention work.
Choose the smallest safe recovery action first, then record the prevention work that reduces repeat incidents.
No. Keep commands, logs, file names, APIs, and product names unchanged, then explain the reasoning in the selected UI language.
State the root cause, the evidence that supports it, and the safest recovery direction.
The source scenario is treated as an incident artifact. Guidance, checklist, hints, and explanations can be localized around it.