Names Don't Resolve, But IPs Work
curl to 1.1.1.1 works, curl to cloudflare.com doesn't. Fix DNS resolution end-to-end.
Puzzle Overview
An engineer on the platform team just rolled out a well-intentioned DNS "improvement" across the fleet. On this host, any hostname lookup fails instantly — but raw IPs still route fine, so the network itself is healthy.
Your job: find what broke DNS resolution and fix it so that normal `getent hosts` and `curl` calls to well-known names succeed again.
Technologies Covered
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