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SideDNS is a local DNS router and transparent HTTP/HTTPS proxy for developers. It lets you map any domain name to any local service — and undo it completely when you're done. Route any domain to any local service. Instantly. Without touching your system.

4 starsRust

SideDNS – Local DNS routing and HTTPS without editing /etc./hosts

by Wilfried-Tech·Jun 15, 2026·3 points·0 comments

AI Analysis

●●SolidSolve My ProblemSlick

Ephemeral rules auto-cleanup when daemon stops, no /etc/hosts editing.

Strengths
  • sidedns run creates ephemeral rules that auto-cleanup on command exit
  • System-wide DNS routing affects all applications, not just configured ones
  • Automatic certificate management with browser trust installation
Weaknesses
  • Local dev proxying already served by dnsmasq, Caddy, ngrok
  • Only single-camera calibration, stereo setups not supported
Target Audience

Backend developers, DevOps engineers

Similar To

dnsmasq · Caddy · ngrok

Post Description

Hi HN,

I built SideDNS because I wanted local development environments to behave more like production.

I was constantly switching between /etc/hosts, reverse proxies, local certificates, and various DNS tools just to access services through real domains.

With SideDNS:

sidedns add api.myapp.com --port 3000 or show hand with ephemeral rule sidedns run -d example.com mycommand with args // sidedns with detect openned port

Now every application on your machine can access that service through `api.myapp.com`, with HTTPS support, wildcard domains, WebSockets, and automatic cleanup when SideDNS stops.

Under the hood, SideDNS combines:

* A local DNS server * A transparent HTTP/HTTPS reverse proxy * Automatic certificate management * Cross-platform DNS integration (Windows, macOS, Linux)

The goal is to make local domains feel as simple as localhost while behaving much closer to production environments.

I'd love feedback from developers using tools like dnsmasq, Caddy, Traefik, nginx, mkcert, or custom /etc/hosts setups in local.

GitHub: https://github.com/Wilfried-Tech/sidedns

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