# External program


<!-- Code generated by gen-dns-providers; DO NOT EDIT. -->

Configuration for the External program DNS provider.

See the [lego documentation](https://go-acme.github.io/lego/dns/exec/) for full details.

```yaml
letsEncrypt:
  dnsProvider: "exec"
  # This provider requires no credentials in the config file
```

Credentials are passed directly to lego using strong types and are never written to the process environment.
You may also use the raw lego environment-variable names as keys instead of the normalized names.