17 lines
1022 B
Markdown
17 lines
1022 B
Markdown
# DuckDNS
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[Duckdns](https://duckdns.org/) is a free service which will point a DNS (sub domains of duckdns.org) to an IP of your choice. The service is completely free, and doesn't require reactivation or forum posts to maintain its existence.
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## Application Setup
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- Go to the [duckdns website](https://duckdns.org/), register your subdomain(s) and retrieve your token
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- Create a container with your subdomain(s) and token. If you own user.duckdns.org, you put `SUBDOMAINS=user` you would NOT put a sub subdomain like overseerr from overseerr.user.ducksdns.org
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- It will update your IP with the DuckDNS service every 5 minutes (with a random jitter)
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## Notice regarding automatic detection
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Using the `UPDATE_IP` variable whatever its value (`ipv4`, `ipv6` or `both`) uses external _Cloudflare whoami_ service to detect public IP addresses.
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**Be aware that using this variable will query a third-party service other than DuckDNS.**
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Omitting the `UPDATE_IP` variable uses DuckDNS for detection and only supports IPv4.
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