By Greg Nowak, 14 May, 2026 Cloudflare’s Enforce DNS-Only Switch: Test Your Origin Before an Incident Cloudflare’s account-wide DNS-only switch can bypass its proxy in an emergency. Test certificates, firewalls, capacity, and rollback before relying on it. Tags Cloudflare DNS incident response origin security business continuity
By Greg Nowak, 5 November, 2021 Cloudflare API for Safer DNS Automation A practical guide to Cloudflare API tokens, curl, comments, and zone imports for safer DNS changes across launches, migrations, and handovers. Tags Cloudflare DNS API Automation bash
By Greg Nowak, 24 August, 2021 How to Flush the DNS Cache on Ubuntu Linux Flush Ubuntu’s DNS cache safely, identify the resolver actually in use, and verify website, email, or API cutovers without guessing. Tags Ubuntu Linux DNS Operations
By Greg Nowak, 28 January, 2021 How to Bulk Delete Cloudflare DNS Records Without Browser Console JavaScript A practical guide to bulk-deleting Cloudflare DNS records safely, with dashboard, API, batch, backup, review, and validation workflows. Tags Cloudflare DNS DNS cleanup Cloudflare API Operations