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wtf is ddns?

fynxiu/ddns — explained in plain English

Analysis updated 2026-07-17 · repo last pushed 2023-03-06

★ 1GoAudience · ops devopsComplexity · 2/5DormantSetup · easy

TL;DR

A Docker-based tool that automatically updates your Aliyun domain's DNS record whenever your IP address changes.

Mindmap

mindmap
  root((ddns))
    What it does
      Detects IP changes
      Updates Aliyun DNS
      Runs automatically
    Tech stack
      Go
      Docker
      Aliyun
    Use cases
      Home server hosting
      Dynamic IP domains
      Cheap infrastructure
    Audience
      Small teams
      Bootstrapped founders
    Setup
      Docker config template
      Aliyun credentials

Code map

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filefunction / class

Why would anyone build with this?

REASON 1

Keep a domain pointed at a home server's IP address even when the ISP changes it periodically.

REASON 2

Automatically update Aliyun DNS records instead of manually logging in to make changes.

REASON 3

Run cheap infrastructure without paying an ISP for a static IP address.

REASON 4

Host a small website or service from an apartment internet connection with a reliable domain.

What's in the stack?

GoDockerAliyun

How it stacks up

fynxiu/ddnsaegrail/aegrail-engineaeneasr/form
Stars111
LanguageGoGoGo
Last pushed2023-03-06—2019-03-08
MaintenanceDormant—Dormant
Setup difficultyeasyhardeasy
Complexity2/55/52/5
Audienceops devopsops devopsdeveloper

Figures from each repo's GitHub metadata at analysis time.

How do you spin it up?

Difficulty · easy Time to first run · 30min

Requires an Aliyun account and API credentials plus Docker installed.

Yoink these prompts

Prompt 1
Show me how to fill in the Docker config template for this Aliyun DDNS tool with my credentials.
Prompt 2
Explain how this ddns tool detects IP changes and updates Aliyun DNS records automatically.
Prompt 3
Walk me through deploying this Aliyun ddns tool with Docker on my home server.
Prompt 4
Help me set up automatic DNS updates for my domain using this tool with Aliyun as my DNS provider.

Frequently asked questions

wtf is ddns?

A Docker-based tool that automatically updates your Aliyun domain's DNS record whenever your IP address changes.

What language is ddns written in?

Mainly Go. The stack also includes Go, Docker, Aliyun.

Is ddns actively maintained?

Dormant — no commits in 2+ years (last push 2023-03-06).

How hard is ddns to set up?

Setup difficulty is rated easy, with roughly 30min to a first successful run.

Who is ddns for?

Mainly ops devops.

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