nslookup server
Changes the default server to the specified Domain Name System (DNS) domain. Windows commands reference
On Windows
Windows
Changes the default server to the specified Domain Name System (DNS) domain. This command uses the current default server to look up the information about the specified DNS domain. If you want to lookup information using the initial server, use the nslookup lserver command.
server <DNSdomain>
<DNSdomain>Specifies the DNS domain for the default server./?Displays help at the command prompt./helpDisplays help at the command prompt.