Duck DNS

Best Self Hosted Alternatives to Duck DNS

A curated collection of the 2 best self hosted alternatives to Duck DNS.

Duck DNS is a free dynamic DNS (DDNS) service that maps changing public IP addresses to stable subdomains, enabling remote access to home or self‑hosted servers. Provides an API and update clients/scripts for automated IP updates.

Alternatives List

#1
ddclient

ddclient

ddclient is a Perl-based Dynamic DNS client that detects IP changes and updates DNS records across many supported DDNS and DNS provider APIs.

ddclient screenshot

ddclient is a Perl client that keeps DNS records up to date when your public IP address changes. It supports a wide range of Dynamic DNS services and DNS provider APIs, and can run periodically or as a daemon to continuously refresh records.

Key Features

  • Updates dynamic DNS entries for many DDNS services and DNS providers
  • Multiple ways to detect external IP (web services or router status pages)
  • Daemon mode for periodic checks, or integration with cron, PPP, and DHCP hooks
  • Uses curl for network access (recommended and default in newer versions)
  • Configuration via ddclient.conf with optional command-line overrides
  • Supports environment-variable substitution in config for secrets (login/password)

Use Cases

  • Keep a home server reachable via a domain name on a changing residential IP
  • Automatically update DNS records for self-hosted services behind consumer ISPs
  • Maintain IPv4/IPv6 address records for labs, small offices, or remote sites

Reliable and widely packaged across Unix-like systems, ddclient is a practical choice when you need automated DNS updates without running a full DNS stack. Its broad provider support and flexible IP detection make it suitable for many network environments.

3.3kstars
380forks
#2
DDNS Updater

DDNS Updater

Lightweight DDNS client to keep DNS A/AAAA records updated across many providers, available as a container or standalone binaries with a built-in web UI.

DDNS Updater is a lightweight dynamic DNS client that periodically checks your public IP address and updates DNS A and/or AAAA records at many supported DNS providers. It can run as a small Docker/Kubernetes-friendly container or as standalone binaries, and includes a built-in web interface for configuration and status.

Key Features

  • Updates A and AAAA records on a wide range of DNS providers
  • Built-in web UI for managing settings and viewing status
  • Runs as a minimal container image and as zero-dependency binaries
  • Periodic IP checks with configurable intervals and multiple public IP “fetcher” methods
  • Persists update history (e.g., last IP and change times) to a local JSON file
  • Container healthcheck that verifies DNS resolution for configured domains
  • Notification support via Shoutrrr-compatible endpoints

Use Cases

  • Keep home server or homelab domains pointing to a changing residential IP
  • Maintain IPv6 AAAA records for dual-stack self-hosted services
  • Update multiple domains/providers from a single deployment (Docker or Kubernetes)

Limitations and Considerations

  • Requires provider credentials/API tokens, and features depend on each provider’s API capabilities
  • Persisting update history requires a writable data directory when running in a container

DDNS Updater is a practical choice when you need a simple, provider-agnostic DDNS solution with a web UI, flexible configuration, and container-first deployment options.

2.8kstars
251forks

Why choose an open source alternative?

  • Data ownership: Keep your data on your own servers
  • No vendor lock-in: Freedom to switch or modify at any time
  • Cost savings: Reduce or eliminate subscription fees
  • Transparency: Audit the code and know exactly what's running