How do I link my domain to the server?

The steps to follow are very easy and short. First you need to copy your IP (whether Minecraft, TeamSpeak or any other service) and go to your domain's DNS panel.

Once the button is pressed, it will give us different options; we will click on "A".

Once done, we will complete the DNS section. Within it, we can do it directly with a connection to the IP, or through a subdomain of the domain (for example: play.domain.com).

You can use several subdomains at once and the domain for a single server; you will need to complete the steps again to add new subdomains.

Add an SRV record so it works with your port in case it's not the default: 25565 (in this case I'll use 21664).