A. There's no netsh command to configure the DNS suffixes, but you can use Group Policy to set the DNS suffix list. Go to Computer Configuration, Policies, Administrative Templates, Network, DNS Client and you can set the DNS Suffix Search List setting. You set the primary through the Primary DNS Suffix setting.

If you can't use Group Policy, you can use regedit on the server core box to set it directly.

  1. Start the registry editor (Rrgedit.exe).
  2. Move to HKLM\SYSTEM\CurrentControlSet\services\Tcpip\Parameters.
  3. Double-click SearchList.
  4. Set to the required value with a comma separating the DNS suffixes.
  5. Click OK.

Registering DNS Suffix