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In order to add a DNS suffix to a TCP/IP connection remotely, all you need is a list of IP addresses and the following command:
wmic /USER:administrator /PASSWORD:adminpassword /node:@c:\iplist.txt nicconfig call SetDNSSuffixSearchOrder (mydomain.com)
where
C:\iplist.txt
contains a list of IP addresses, line separated.
Outra maneira é adicionar via o registro
reg add HKLM\System\currentcontrolset\services\tcpip\parameters /v “NV Domain” /d “mydomain.com” /f
Há uma entrada da base de conhecimento da Microsoft para o mesmo.