A simple command line tool to update Cloudflare DNS record with external IP address to use it as dynamic DNS.

cfddns -- A simple command line tool to update Cloudflare DNS record.

cfddns --api-token <API_TOKEN> --zone-id <ZONE_ID> COMMAND [OPTIONS]

• --api-token or API_TOKEN environment variable is a token that is created at https://dash.cloudflare.com/profile/api-tokens.

• --zone-id or ZONE_ID enrivonment variable is found on "Overview" page on each domain name on Cloudflare dashboard.

update -- Update a Cloudflare DNS record with an external IP address.

• --record-id to specify the record id to update. Use list command to find this.

• --record-type is DNS record type. Default to use A.

• --name is DNS record name.

• --provider is the provider to fetch the external IP address. Possible values is either upnp to use UPnP, aws to use https://checkip.amazonaws.com/, dyndns to use http://checkip.dyndns.org/. Default to use upnp.

list -- List all Cloudflare DNS records.

This command takes no options.

print-launchd-plist -- Print launchd(8) plist file to update DNS record. Useful to install cfddns as a repeated task on macOS.

This command takes same options as update command.

cfddns is a simple command line tool to update Cloudflare DNS record with external IP address to use it as dynamic DNS. External IP address is fetched by UPnP locally or 3rd party API.

Use Cargo to build it.

cargo build --release # Build binary.
target/release/cfddns help # Print usage.

This source code is mostly generated by the large language model with a little advice by a human.