Networking Beginner About 15 min +120 XP New

Internal API Hostname Does Not Resolve

The migrated host cannot reach the internal API by name; every call fails before it leaves the machine.

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Briefing

The migration team is publishing internal DNS records in batches, and api.internal.company is in a batch that will not land until tomorrow.

Meanwhile the smoke tests for the migrated services need that name today, pointed at the staging API.

The DNS team has been clear that it will not hand-publish a record outside the change window.

Someone has suggested pointing the whole host at a different resolver.

The fix is yours to find: hints, the recovery checks and the debrief unlock inside the incident.

01
Get paged
The alert fires and the clock starts. Read the page and the briefing.
02
Investigate
Work in a simulated shell with realistic output: logs, configs, services.
03
Fix it
Change the system the way you would in production. Hints are there if you get stuck.
04
Prove it
Automated checks verify the recovery, then the debrief explains what happened.

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