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Tailscale

Manage your Tailscale tailnet — devices, routes, and more

Actions32

DNS → Update Split DNS

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Summary

Update specific domain entries in the split DNS configuration of a Tailscale tailnet, modifying or removing domain-to-nameserver mappings as specified.

Inputs

  • Authentication (required) — Choose the authentication method, either 'API Key' or 'OAuth2'.
  • Tailnet Name or ID (required) — Select the target tailnet organization name or ID. Use '-' to target the default tailnet for the authenticated user.
  • Split DNS Configuration (required) — A JSON object mapping domain names to arrays of nameserver IPs to update. To remove a domain, set its value to null.

Output shape

a JSON response from the Tailscale API indicating the result of the PATCH update to the split DNS configuration.

The operation sends a PATCH request to update only the specified domains in the tailnet's split DNS configuration without replacing the entire configuration.

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