Set DNS Servers

# Choose whatever Primary and Secondary DNS Servers you want. Some common
# DNS Services are listed below, but you can use whatever you want.
#
# Level3                209.244.0.3 and 209.244.0.4
# Verisign	            64.6.64.6 and 64.6.65.6
# Google	            8.8.8.8 and 8.8.4.4
# Quad9	                9.9.9.9 and 149.112.112.112
# DNS.WATCH	            84.200.69.80 and 84.200.70.40
# Comodo Secure DNS	    8.26.56.26 and 8.20.247.20
# OpenDNS Home	        208.67.222.222 and 208.67.220.220
# Norton ConnectSafe	199.85.126.10 and 199.85.127.10
#
 
#http://powershell-guru.com/powershell-tip-63-check-if-a-computer-is-member-of-a-domain-or-workgroup/
if ((Get-WmiObject -Class Win32_ComputerSystem).PartOfDomain){
    write-host "Domain member, we better not update the DNS!!"
    exit
}
 
$PrimaryDNS = '208.67.222.222'
$SecondaryDNS = '208.67.220.220'
 
$DNSServers = $PrimaryDNS,$SecondaryDNS
 
$NICs = Get-WMIObject Win32_NetworkAdapterConfiguration | where{$_.IPEnabled -eq "TRUE"}
 
function get-return-status {
	Param ($code)
	If ($code -eq 0) {
		return "Success."
  } elseif ($code -eq 1) {
		return "Success, but Restart Required."
  } else {
		return "Error with Code $($code)!"
  }
}
 
Foreach($NIC in $NICs) {
  ""
  "-------"
  "Attempting to modify DNS Servers for the following NIC:"
  $NIC
  $returnValue = $NIC.SetDNSServerSearchOrder($DNSServers).ReturnValue
  $response = get-return-status($returnValue)
  Write-Host "Setting DNS Servers to ${$NICs}...$($response)"
  $returnValue = $NIC.SetDynamicDNSRegistration("True").ReturnValue
  $response = get-return-status($returnValue)
  Write-Host "Setting Dynamic DNS Registration to True...$($response)"
}