nslookup set domain

Applies to: Windows Server 2022, Windows Server 2019, Windows Server 2016, Windows Server 2012 R2, Windows Server 2012

Changes the default Domain Name System (DNS) domain name to the specified name.


set domain=<domainname>


Parameter Description
<domainname> Specifies a new name for the default DNS domain name. The default value is the name of the host.
/? Displays help at the command prompt.
/help Displays help at the command prompt.


  • The default DNS domain name is appended to a lookup request depending on the state of the defname and search options.

  • The DNS domain search list contains the parents of the default DNS domain if it has at least two components in its name. For example, if the default DNS domain is mfg.widgets.com, the search list is named both mfg.widgets.com and widgets.com.

  • Use the nslookup set srchlist command to specify a different list and the nslookup set all command to display the list.