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Dev tools · alternatives · 2026

24 alternatives to I built a guided Build your own DNS Server challenge

Hey everyone. It's Sherub here, author of the Build your own DNS Server challenge on CodeCrafters. Currently it’s available in Rust, Go, and Python and is free while in beta. https://codecrafters.io/dns-server I've kept the challenge accessible but still challenging for an intermediate developer. This challenge, like others from CodeCrafters, is self-paced. You can use any tools you prefer (terminal, editor, etc.) to build the project. At the end of the challenge, you will have created a DNS forwarding server. The server can create and read DNS packets and respond to DNS…

This is a self-paced coding challenge that guides developers through building a DNS forwarding server. Available in Rust, Go, and Python, it is designed for intermediate developers and covers DNS protocol fundamentals… Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. I built a guided Build your own DNS Server challenge launched in 2023; newer entries below may have overtaken it.

  1. 1

    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.

    Apr 2026 · github.com · its alternatives →

  2. 2

    Hey all, wanted to share my recent weekend hack project. I wanted to improve upon the existing space for looking up information about IP addresses and ASNs. The backend is written in Rust and pulls BGP data every 8 hours from the RIPE RIS project to build up a routing table and also adds geolocation information. The frontend is using React and Tailwind. Would love any feedback or suggestions on what to improve.

    2023 · ip.guide · its alternatives →

  3. 3

    Recursive and authoritative DNS server in go, including DNSSEC and DNS-over-TLS - tenta-browser/tenta-dns

    2017 · github.com · its alternatives →

  4. 4

    Expose localhost to the internet with a public URL

    2020 · tunnelto.dev · its alternatives →

  5. 5

    Recreate your favorite developer tools from scratch

    2023 · codecrafters.io · its alternatives →

  6. 6

    Tired of companies snooping through your DNS traffic? Don't you wish you could get advertisements with your DNS records? Today we're introducing the innovative, privacy-focused, ad-supported DNS resolver - DN$! Traditional DNS resolvers provided by your internet service provider, cloudflare, or google could be tracking your internet activity and selling it to third-party data vendors. We at DN$ want to fix that and cut out these nefarious actors (until we've amassed a critical number of users to exploit). In order to support such a radically new business model, our service needs to serve…

    2024 · github.com · its alternatives →

  7. 7KE

    My goal was to create a DNS server as simple as the LDAP server I've been contributing to (glauth) and here it is: https://github.com/fusion/kittendns A few things to know about it: - It is easy to configure using a Toml file - I am using it to bail my coredns/etcd instances when under attack - (yes, it also works as a service location server) - It comes with a simple, plain English, rule engine that doesn't do much at this point - It can be used with LetsEncrypt. I use it to retrieve certificates for my home servers. - RFC: all the nice ones :) Anyway, feedback is…

    2022 · its alternatives →

  8. 8

    Hi everyone, I recently published a small open-source project. It’s a minimal network packet analyzer written in Go — designed more like a learning toy than a replacement for Wireshark. It currently supports parsing basic protocols like TLS, DNS, and HTTP, and includes a tiny fuzzing engine to test payload responses. You can inspect raw packet content directly from the terminal. The output is colored for readability, and the code structure is kept simple and clear. The entire program is very small — just about 400 lines of Go code. I know it’s not anywhere near Wireshark’s level, and I still…

    2025 · github.com · its alternatives →

  9. 9

    Make a self hosted OpenVPN server in 15 minutes. Contribute to robbintt/popup-openvpn development by creating an account on GitHub.

    2017 · github.com · its alternatives →

  10. 10

    Expose your local web server to the internet with a public URL

    2020 · tunnelto.dev · its alternatives →

  11. 11ZI
  12. 12

    Hello! I got quite some feedback on a web server I'm building, so I'm rewriting the server to be faster and easier to use. I (and maybe some other contributors?) have optimized the web server performance, especially for static file serving and reverse proxying (the last use case I optimized for very recently). I also picked a different configuration format and specification, what I believe is easier to write. Automatic TLS is also enabled by default out of the box, you don't need to even enable it manually, like it was in the original server I was building. Yesterday, I released the first…

    2025 · ferron.sh · its alternatives →

  13. 13

    Most site blockers work by blacklisting distractions. That never worked for me, the internet is too big, and there’s always something new to waste time on. I wanted the opposite: allowlist‑only browsing. Block everything by default, and explicitly allow only what I need. So I built Sinkzone: a local DNS forwarder with two modes: Monitor mode: lets all traffic through, but logs every domain so you can decide what to allow. Focus mode: only allowlisted domains resolve; everything else is blocked (NXDOMAIN). It’s open source, written in Go, and runs locally on macOS, Linux, and Windows. Works a…

    2025 · github.com · its alternatives →

  14. 14

    An example GraphQL server written in Rust. Contribute to lucperkins/rust-graphql-juniper-actix-diesel-postgres development by creating an account on GitHub.

    2020 · github.com · its alternatives →

  15. 15DD

    2013 · samarudge.github.io · its alternatives →

  16. 16

    Hi HN, as a learning experience, I created a small DNS resolver with blocking capabilities and resolution of local host names. There are already tons of good ad-blocking DNS implementations out there. And they do this much better than my implementation. Great examples are Blocky or pihole. So when I set out to "play around", I looked at these projects and tried to modify them. Fortunately for them, but unfortunately for beginners, these are already quite far developed and complex projects. So impatient me set out to "quickly write something in Python". Almost two weekends later, I put in so…

    2024 · github.com · its alternatives →

  17. 17
  18. 18GB
  19. 19TD

    Hey HN, A few years ago I came across the On the Metal podcast episode with Kenneth Finnegan about setting up the Fremont Cabal Internet Exchange. It sent me down a rabbit hole I haven’t climbed out of. I'm a software and systems engineer by background, and I am not a network engineer. I’d dabbled with DNS and mail servers before, but always wondered how everything actually tied together at the infrastructure level. Kenneth’s interview awoke something in me. I went all in, taught myself BGP, figured out how ASNs work, got my own IP prefix and eventually racked my own servers at a local…

    Mar 2026 · its alternatives →

  20. 20NS

    Hey everyone, I was always tired of setting up PowerDNS, Bind and PiHole and I am trying to do more projects in Rust, so here is Nomina. It has: * Split Horizon DNS (return a different IP/record if remote IP is in a certain network etc) * DynDNS Support * Blocklist Integration * DHCP4+6 Server * AXFR/IXFR support * Rewriting of records It can replace most of the common Home Lab setups incl. PiHole AdBlocking etc. https://github.com/DatanoiseTV/Nomina

    Jun 2026 · its alternatives →

  21. 21

    DNS over HTTPS proxy written in golang. Contribute to satran/dohproxy development by creating an account on GitHub.

    2018 · github.com · its alternatives →

  22. 22

    A high-performance DNS stub resolver for bulk lookups and reconnaissance (subdomain enumeration) - blechschmidt/massdns

    2016 · github.com · its alternatives →

  23. 23OS

    Hey Hacker News! I am madnuttah, I am a Windows/Linux Sysadmin and some folks may remember this username for "niche" mods I've made for Fallout and Skyrim and some C# UWP Windows Store Apps which I've retired because of Microsoft's unclear strategy abandoning things from one day to another. Why am I writing this? I wanted to be independent from the DNS servers of my provider, because they have often shined brightly with problems in the past instead of functioning properly, wanted to have a little bit more privacy and freedom back by fighting censorship via DNS, so I built my own Unbound…

    2022 · its alternatives →

  24. 24

    Hello! I'm learning Rust and also information security, so what better way to learn than to put a tool together practicing both skills? I've tried to use a couple of different tools for subdomain enumeration (part of the Discovery-party when it comes to penetration testing), but none of them were very fast, even if the DNS resolver I pointed them towards is, so I wrote my own tool that leverages concurrency to check a lot of subdomains, fast! It's written in Rust, main parts being using Tokio and async_channels, and I think it works good enough for a first release. I wanted to get recursive…

    2022 · github.com · its alternatives →

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Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →