☁️ Cloudflare DDNS Updater (PowerShell)

Automatically update your dynamic IP address in Cloudflare DNS using PowerShell. Ideal for home servers, VPNs, and remote access setups where your public IP changes frequently.

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✨ Features

• 🔍 Retrieves Zone ID automatically
• 🌐 Updates A-record (IPv4) and optionally AAAA-record (IPv6)
• ⚡ Only updates DNS when your IP changes
• 🛠️ Fast, lightweight, and easy to configure

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📝 Requirements

• 💻 PowerShell 5.1 or later (Windows, Linux, macOS)
• 🔑 Cloudflare API Token with Zone.DNS permissions

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🚀 Setup & Usage

1. Download cloudflare_DDNS.ps1 to your system.
2. Open the script and fill in the configuration section:
   • ApiToken: Your Cloudflare API token
   • ZoneName: Your domain/zone (e.g. example.com)
   • RecordName: The FQDN to update (e.g. home.example.com)
   • Adjust other options as needed (TTL, Proxied, IPv6)
3. Run the script:

.\cloudflare_DDNS.ps1

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⏰ Run as a Scheduled Task (Windows)

To keep your DNS records updated automatically, you can run this script as a scheduled task:

1. Open Task Scheduler and create a new task.
2. Set the trigger (e.g. every 30 minutes).
3. Set the action:
   • Program/script: powershell.exe
   • Add arguments: -File "C:\Path\To\cloudflare_DDNS.ps1"
   • Start in: C:\Path\To\
4. Make sure the task runs with highest privileges and is set to run whether user is logged in or not.
5. Save and enable the task.

Example PowerShell command for quick setup:

SchTasks /Create /SC MINUTE /MO 30 /TN "CloudflareDDNS" /TR "powershell.exe -File C:\Path\To\cloudflare_DDNS.ps1" /RL HIGHEST /F

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⚙️ Example Configuration

$ApiToken   = "YOUR_API_TOKEN"
$ZoneName   = "example.com"
$RecordName = "home.example.com"
$TTL        = 120
$Proxied    = $false
$EnableIPv6 = $false

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💡 Notes

• The script checks multiple public IP sources for reliability.
• IPv6 support is optional and can be enabled in the config.
• No third-party dependencies required.

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📄 License

MIT