Nameservers: What Are They And How Do They Work?
https://www.a2hosting.com/blog/what-are-nameservers/
Select the down arrow next to your domain, and you should see an option to Manage Nameservers: Next, select Private Nameservers from the Manage sidebar. If this is your first time registering a nameserver, enter a name under Register a Nameserver Name: This is usually “ns1”, since nameservers tend to use names like ns1.example.com. You can then add the IP address associated with the nameserver in question, and save your changes.
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