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23 lines
1.2 KiB
Markdown
23 lines
1.2 KiB
Markdown
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Building a DNS server in Rust
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To me, DNS is one the most exciting aspects of the Internet. Before it was
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invented, everyone on the internet - which admittedly wasn't that many at that
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stage - relied on a shared file called HOSTS.TXT, maintained by the Stanford
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Research Institute. This file was synchronized manually through FTP, and as the
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number of hosts grew, so did the rate of change and the unfeasibility of the
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system. In 1983, Paul Mockapetris set out to find a long term solution to the
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problem and went on to design and implement DNS. It's a testament to his
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genius that the his creation has been able to scale from a few thousand
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computers to the Internet as we know it today.
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With the combined goal of gaining a deep understanding of DNS, of doing
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something interesting with Rust, and of scratching some of my own itches,
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I originally set out to implement my own DNS server. This document is not
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a truthful chronicle of that journey, but rather an idealized version of it,
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without all the detours I ended up taking. We'll gradually implement a full
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DNS server, starting from first principles.
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* [Chapter 1 - The DNS protocol](/src/bin/chapter1.md)
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* [Chapter 2 - Building a stub resolver](/src/bin/chapter2.md)
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