I have a dedicated server running Ubuntu and Plesk. I have a primary domain on this server but will also be running several other sites and I would like to be able to set the DNS records for those to something such as:
ns1.maindomain.com
ns2.maindomain.com
I found a couple Plesk tutorials on how to do this and follow them, but when I try to change the DNS records for a domain on GoDaddy I get an error saying that ns1.maindomain.com is not a valid record.
Any idea what I might be missing?