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Setting up Tailscale on NixOS

Tailscale is packaged in NixOS, starting at version 19.09.

  1. Enable Tailscale in your NixOS configuration, and apply it

    services.tailscale.enable = true;
  2. Authenticate and connect your machine to your Tailscale network

    sudo tailscale up
  3. You’re connected! You can find your Tailscale IPv4 address by running:

    tailscale ip -4

If the device you added is a server or remotely-accessed device, you may want to consider disabling key expiry to prevent the need to periodically re-authenticate.

Using MagicDNS

To set up MagicDNS, you need to set up the MagicDNS nameserver and search domains in your NixOS configuration:

networking.nameservers = [ "" "" "" ]; = [ "" ];

Check the DNS page of the admin console in order to figure out the search domain. It will be the first entry in the search domains list. Be sure to remove the leading ..

Note that you need an extra entry in the DNS server list, the second DNS server will be used for Tailscale to bootstrap its connection.

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