Reference · Beginner

Domain Name System (DNS) Explained

Learn how DNS maps hostnames to IPv4 and IPv6 addresses, how clients use configured resolvers, DNS records, ports, caching, hierarchy, and troubleshooting.

Who it is for

Readers who landed on a historical path in this section.

You should already know

None.

You will be able to

  • Open the exact public URL for each lesson in this track.

Lessons