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Protect it how exactly? You can create firewall rules on DigitalOcean and limit the IP addresses from which the DNS server is accessible.

• disiplus 6y ago
  that works only if you have a static ip home (which you usually don't have) or on your smartphone (which you don't have) > https://www.calyptix.com/top-threats/3-common-dns-attacks-and-how-to-fight-them/ https://www.calyptix.com/top-threats/3-common-dns-attacks-an...
  • patentatt 6y ago
    I have a ‘dynamic’ IP address at home that hasn’t changed for a few years. I have a slew of firewall rules based on it that are reliable in practice.
  • JshWright 6y ago
    If you're that concerned about it, Wireguard is easy enough to set up on all those endpoints.