Build / 04NetworkingIntermediate4–5 hours
Build your own
DNS Resolver
Understand how domain names become IP addresses by implementing DNS resolution yourself.
01 / Outcomes
What you'll understand
- 01DNS packets
- 02Recursive resolution
- 03UDP
- 04Caching
02 / Deliverable
What you'll build
A resolver that asks nameservers for address records and decodes their replies.
Built for understanding—not production use.
03 / Implementation
Choose your language
Guide in progress.
This build is in the workshop. Its first complete implementation will appear here when it is ready.
Explore available builds →