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DNS is the way around it. But, the caveat is that while you can update your DNS entry as often as you like, itll often be cached on intermediate servers for an unknown amount of time. Expect a downtime of anywhere from a few minutes to days everytime your address changes.
So how does this work then, I host DNS and it pushes my data to other DNS servers around the net every time my IP address changes? Can you share an example of how could be set up?
No, typically you use the DNS server of the domain provider.
Hosting your own DNS server is possible, but if you don't have a static IP address the other DNS servers will have no idea which server to ask when your IP changes, so in this specific scenario it wouldn't work. And in general it isn't really worth it as you get a DNS server with your domain included.
You run a dynamic DNS script. It reaches out to the DNS server (provided by whoever registers your domain name) every five minutes and says "my IP is x.x.x.x".
The problem is that it takes a few minutes to update when it changes. That might not fit your use case.
Unless you set your clients to use the same server for lookups. Then you should get the update nearly instantly.
Tailscale is probably the right move there in that case. Also OS caching may still cause delays.