# k0p1-git/cloudflare-ddns-updater

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1,833 stars · 447 forks · Shell · MIT

## Links

- GitHub: https://github.com/K0p1-Git/cloudflare-ddns-updater
- awesome-repositories: https://awesome-repositories.com/repository/k0p1-git-cloudflare-ddns-updater.md

## Topics

`api` `bash` `cloudflare` `ddns` `ddns-updater` `dns`

## Description

This project is a shell-based automation utility designed to synchronize domain name system records with a changing public internet address. It functions as a dynamic DNS updater, ensuring that a custom domain consistently points to the current network address of a home or office environment.

The tool automates the process of detecting local network address changes by polling public web services and subsequently updating the corresponding records via the Cloudflare API. By utilizing environment variables for credential management and scheduling updates through system-level task runners, it maintains connectivity for self-hosted infrastructure without requiring manual intervention when an internet service provider rotates an IP address.

The implementation relies on native command-line utilities to perform these network configuration tasks on Linux and Unix-like operating systems. The project is distributed as a standalone script, allowing for integration into existing system automation workflows.

## Tags

### Networking & Communication

- [Dynamic DNS Synchronization](https://awesome-repositories.com/f/networking-communication/dynamic-dns-synchronization.md) — Automates the synchronization of network hostnames with dynamic IP addresses to maintain remote access.
- [Public IP Detectors](https://awesome-repositories.com/f/networking-communication/public-ip-detectors.md) — Detects the current public network address by polling external web services.
- [DNS Record Management](https://awesome-repositories.com/f/networking-communication/dns-record-management.md) — Manages and updates DNS records specifically within the Cloudflare ecosystem.
- [Remote Access Connectivity](https://awesome-repositories.com/f/networking-communication/remote-access-connectivity.md) — Maintains reliable remote access to self-hosted services by tracking dynamic IP changes.

### DevOps & Infrastructure

- [Automated DNS Record Synchronization](https://awesome-repositories.com/f/devops-infrastructure/automated-dns-record-synchronization.md) — Synchronizes domain name system records with changing public IP addresses to ensure consistent connectivity. ([source](https://github.com/k0p1-git/cloudflare-ddns-updater#readme))
- [Cron Job Automation](https://awesome-repositories.com/f/devops-infrastructure/scheduling/cron-job-automation.md) — Automates periodic DNS updates using standard system-level cron scheduling.

### Security & Cryptography

- [Cloudflare Integrations](https://awesome-repositories.com/f/security-cryptography/dns-validation-providers/dns-provider-api-integrations/cloudflare-integrations.md) — Provides authenticated API integration to update DNS records on the Cloudflare platform.

### System Administration & Monitoring

- [Self-Hosted Service Access Automation](https://awesome-repositories.com/f/system-administration-monitoring/self-hosted-service-access-automation.md) — Automates network reachability for self-hosted infrastructure by linking domains to dynamic IP addresses.