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Show HN: I built a DNS resolver from scratch in Rust – no DNS libraries

https://github.com/razvandimescu/numa
7•rdme•1h ago
I built a DNS resolver that lets me use https://frontend.numa instead of localhost:5173 — auto-generated TLS certs, WebSocket passthrough, path routing. No mkcert, no nginx, no /etc/hosts.

Comments

rdme•1h ago
Since I needed it to be my primary DNS, I also added: recursive resolution from root nameservers, DNSSEC chain-of-trust validation, ad blocking (385K+ domains), and LAN service discovery.

I wrote about the DNSSEC implementation here: https://numa.rs/blog/posts/dnssec-from-scratch.html It's now my daily system DNS. Single binary (~8MB), macOS/Linux/Windows.

`sudo numa install`

rdme•57m ago
Thanks! If you hit any issues during setup, feel free to open an issue — happy to help debug. The dashboard at localhost:5380 shows what's happening in real time.
rbluethl•1h ago
Cool idea, every developer running apps in dev on their machine knows this pain for sure. I'll give it a spin and let you know how it goes!
lyfeninja•1h ago
I think I need to give this a go. Cool project.
rdme•58m ago
Thanks! Let me know how it goes.

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Show HN: I built a DNS resolver from scratch in Rust – no DNS libraries

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