irotsoma

DNS over TLS handles that. No need for DoH really. Unless DNS ports are blocked or captured by NAT or something and you need to use port 443 with DoH. At least not with a DNS server.

DoH is useful for individual applications to do their own DNS lookups bypassing the OS or network level DNS. Otherwise DoH and DoT provide the same basic protection. DoT is just at a lower network layer and thus more easily applies more broadly across the network or OS rather than being application or resolver specific. There’s never been a real need for a DNS server to use DoH instead of DoT unless DoT is blocked upstream.

Use VPN or DDNS connected to your domain registrar. Of course DDNS might not update immediately, especially if your domain host is not the same as your DNS provider, so you might have outages for short periods when your IP changes. So, depends on if you’re OK with that or what kind of connection you have and whether it changes your IP a lot.

Also, might be able to get an IPv6 address for free depending on your ISP or at least you can set up your router to request that your address block is retained for you. I know Comcast does this. Unfortunately, my ISP does not.

Unbound supports DoH if compiled with the support and given TLS certificates. I don’t use it internally on my home network because I have a pihole that I want to capture the traffic. I do use DNS over TLS for upstream communication, though.