~/talk

Avoiding DNS Pain

Talkat linux.conf.au 2022 · 2022-01-14..01-16· [networking, security]
slides:none on file

DNS outages and attacks rise year on year with real incidents at Azure, Akamai and AWS and one global outage that exposes fragility; dangling DNS entries (CNAMEs and MXs left pointing to deleted cloud resources) allow name takeover and phishing. The proposed fix is DNSControl, a JavaScript DSL that runs check and preview, has a SPF optimizer, supports Cloudflare/Azure/AWS providers, integrates with Git/GitHub PRs and CI for fast, auditable changes and provider migration, and is shown creating records successfully in production.

AI-written summary · about

  1. 0:00Introduction
  2. 1:10DNS Pain
  3. 3:40DNS Security
  4. 7:48DNS Change Control
  5. 8:57DNS Zones
  6. 10:14DNS Control
  7. 12:38Example
  8. 16:24Other cool features
  9. 18:15Provider resilience
  10. 21:36Links
  11. 24:45Questions
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