Need everything behind a CloudFront distribution to return “Not Found” instantly—without touching your origin? Here’s a tiny CloudFront Function you can attach at Viewer Request to short-circuit all traffic and consistently respond with a 404 (plus no-cache headers).
UTC is the world’s neutral reference clock—born from railroads, telegraphs, and ultimately atomic clocks. This article explains what UTC is, why it matters for systems and schedules, and tells the story of how scientists and standards bodies coordinated civil time for a networked world.
We “time-travel” this Sunday, Nov 2. Keep servers happy during the duplicated 1–2 AM hour with a playful primer, a 5-minute readiness checklist, and quick post-change checks.
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