Originally Posted by darinpeterson
With domain registrar, you should place ns1.domain.com, and ns2.domain.com as your name servers. This is called a glue record for your domain.com domain.
In ISPConfig3 you need these:
ns1 A 3600 123.456.789.12
ns2 A 3600 123.456.789.12
Okay, I now understand what you meant! I found the Domain Setup page at my domain registrar control panel, which is different from the DNS records panel. I will put the glue record "ns1.domain.com" and "ns2.domain.com" in place, instead of my ISP:s default glue records for their DNS server.
Hope this works better.
Many thanks to you Darin!