What happens when a nameserver is down?

What happens when one of the nameservers configured on this page is down?

  • I have read this support document, but I don’t see a word about that situation. Do Tailscale-connected clients automatically use the next available nameserver?
  • Likewise, are nameservers used in the order they are specified? Do successive ones be used only when the previous one fails?

As of now, the nameserver is used in the order they specified. To be more clear, magicDNS only works to resolve the Tailscale formed domain names rest of the DNS queries will be answered by the followed DNS IP updated by the user.

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Thank you for this information! I am not using magic DNS though; I just wanted to know about the nameservers part.