CodeCrafters
Build your own DNS server
Learn about the DNS protocol, DNS record types and more.
Start Building
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DNS is a protocol used to resolve domain names to IP addresses. In this challenge, you'll build a DNS server that's capable of responding to basic DNS queries.
Along the way you'll learn about the DNS protocol, DNS packet format, DNS record types, UDP servers and more.
Stages
Setup UDP server
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Write header section
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Write question section
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Write answer section
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Parse header section
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Parse question section
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Parse compressed packet
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Forwarding Server
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RECENT ATTEMPTS
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There are few sites I like as much that have a step by step guide. The real-time feedback is so good, it's creepy!
Ananthalakshmi Sankar
Automation Engineer at Apple
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I think the instant feedback right there in the git push is really cool.
Didn't even know that was possible!
Patrick Burris
Senior Software Developer, CenturyLink
Ananthalakshmi Sankar
Automation Engineer at Apple
“
I think the instant feedback right there in the git push is really cool.
Didn't even know that was possible!
Patrick Burris
Senior Software Developer, CenturyLink