---
title: "Duck DNS"
date: 2019-03-03T16:39:46+01:00
draft: false
slug: duckdns
---

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Since: v0.5.0

Configuration for [Duck DNS](https://www.duckdns.org/).


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- Code: `duckdns`

Here is an example bash command using the Duck DNS provider:

```bash
DUCKDNS_TOKEN=xxxxxx \
lego --email myemail@example.com --dns duckdns --domains my.example.org run
```




## Credentials

| Environment Variable Name | Description |
|-----------------------|-------------|
| `DUCKDNS_TOKEN` | Account token |

The environment variable names can be suffixed by `_FILE` to reference a file instead of a value.
More information [here](/lego/dns/#configuration-and-credentials).


## Additional Configuration

| Environment Variable Name | Description |
|--------------------------------|-------------|
| `DUCKDNS_HTTP_TIMEOUT` | API request timeout |
| `DUCKDNS_POLLING_INTERVAL` | Time between DNS propagation check |
| `DUCKDNS_PROPAGATION_TIMEOUT` | Maximum waiting time for DNS propagation |
| `DUCKDNS_SEQUENCE_INTERVAL` | Time between sequential requests |
| `DUCKDNS_TTL` | The TTL of the TXT record used for the DNS challenge |

The environment variable names can be suffixed by `_FILE` to reference a file instead of a value.
More information [here](/lego/dns/#configuration-and-credentials).




## More information

- [API documentation](https://www.duckdns.org/spec.jsp)

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