Dynamic IP Updater with Cloudflare DNS

This project is a dynamic IP updater for Cloudflare DNS records. It listens for changes in the IPv4 address of the network interface and updates the DNS records in Cloudflare accordingly.

Features

• Automatically detects changes in the public IP address.
• Updates Cloudflare DNS records when the public IP changes.
• Listens for network interface events to detect IP changes.
• Handles errors and retries updates to Cloudflare.

Prerequisites

• Rust and Cargo installed.
• Cloudflare account with API token.
• Network interface with dynamic IP address.

Installation

1. Clone the repository:

   git clone https://github.com/yourusername/dynip-cloudflare.git
   cd dynip-cloudflare
   

2. Build the project:

   cargo build --release
   

3. Create configuration file:

   Create a config.toml file in the current directory or in the configuration directory (typically ~/.config/dynip-cloudflare/) with the following content:

   zone_id = "your_zone_id"
   api_key = "your_api_key"
   domains = ["example.com", "sub.example.com"]
   max_errors_in_row = 5
   

Usage

1. Run the program:

   ./target/release/dynip-cloudflare
   

2. Logging:

   The program logs to both stderr and a rotating file located in the logs directory. The log level is set to Info.

Configuration

config.toml

• zone_id: The Zone ID of your Cloudflare domain.
• api_key: The API key for your Cloudflare account.
• domains: A list of domain names to update.
• max_errors_in_row: Maximum number of consecutive errors before the program stops. Will be set to 10 as default

Example

zone_id = "your_zone_id"
api_key = "your_api_key"
domains = ["example.com", "sub.example.com"]
max_errors_in_row = 5 

Error Handling

The program handles errors gracefully, with retries and logging of error messages. If the number of consecutive errors exceeds max_errors_in_row, the program will stop.

License

This project is licensed under the BSD 2-Clause License.