I found one post on this earlier, but it didnt answer my questions. I used plesk before I decided to move to another control panel that didnt cost a ridiculous amount of money. 1and1 has a faq here about it, though its not exactly what I did. I have a vps from Tektonic, and for plesk, I created two subdomains off of a domain (ns1.mysite.com, ns2.mysite.com) I made in 1and1 admin, assigned a different ip from my server to each subdomain. Then for all of my domains under plesk, I added an ns record for each nameserver subdomain. And it worked flawlessly. It does not work with ISPConfig. Is there any way I can make it work with a 1and1 domain?