Who's your DNS provider? I use cloudflare and powershell script and hits their API. Works well

I use https://github.com/qdm12/ddns-updater

You should be able to do the crontab approach with any DNS provider that has an API – just need to change the URL and the API key, obviously.

If your provider or registrar doesn't offer an API consider using one that does. DeSEC.io is free to use and reliable.

I solved this using tailscale, no need to make your home server visible to the world, no Forwarding rules on your router. It works like a VPN on your phone/laptop and access directly your target machine in your network running taiscale. There is a completely selfhosted version called Headscale, but you'll need an accessibile server on the internet. A cheap VPS would work for this. You can check also Zerotier, Nebula , Netmaker, pure Wireguard etc etc. Godspeed!

Acronyms, initialisms, abbreviations, contractions, and other phrases which expand to something larger, that I've seen in this thread:

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