Skip to content

Becoming an Infrastructure Engineer

From DNS to AWS Design: A Series on Infrastructure Fundamentals
DNS

[DNS Fundamentals Part 1] What Is DNS? How Name Resolution Works and Its Three Key Players

Web browsing, email, and cloud services all start with DNS. This article explains how DNS grew out of the hosts file, the two steps of every connection, the three key players (stub resolver, caching DNS, authoritative DNS), and the flow of a single lookup. Part 1 of a 12-part series.
2026.11.15
DNS

Language Switch

  • 日本語
  • English

Pages

  • Privacy Policy and Disclaimer
  • About
  • Contact
  • DNS Fundamentals: From How Name Resolution Works to Design and Troubleshooting (12 Parts)

Categories

  • DNS

Archives

  • November 2026
Becoming an Infrastructure Engineer
© 2004 Becoming an Infrastructure Engineer.
  • Home
  • Top