If your domain was registered via Hoststar, follow these steps to change the name server.
Specify name servers
3. Select your subscription
You now see a list of your domains. These includes both, domains which you have registered with Hoststar and those which you registered with an external registrar.
If «Registrar: external provider» is displayed, you cannot change the name server from My Panel. In this case, contact the current registrar of the domain.
5. Specify name servers
A pop-up window appears. A pop-up window showing the current name servers (primary and secondary) appears. You can make changes under «Primary name server» and «Secondary name server». Enter the name servers included in the email you received from us. If desired, you can add additional name servers under «Name server (optional)».
Click «Save» to apply your changes.
General information about name servers can be found here.