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PowerShell script to update DNS Search Order on a particular NIC on multiple remote machines

Here is a PowerShell script to update DNS Search Order on a particular NIC on multiple remote machines

$cred = get-credential

$strDNSServers = "192.168.1.50", "192.168.1.51","192.168.1.52"

function Update-DNS
{
$Nic = Get-WMIObject Win32_NetworkAdapter -comp $strComputer |where{$_.NetConnectionID -eq "Local Area Connection"}

$Config = Get-WMIObject Win32_NetworkAdapterConfiguration -comp $strComputer |where{$_.MACAddress -eq $Nic.MACAddress}

write-host "The current DNS Search Order is:"
$config.DNSServerSearchOrder

$config.SetDNSServerSearchOrder($strDNSServers) | out-null

}

foreach ($strComputer in get-content c:\temp\ServerList.txt)
{
Update-DNS
}

Again you could remove a line or two from above to just check or verify your changes.

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Ying Li obtained a Master degree of Medicine in China and worked in the medical field before he came to the states in 1996. He made the career switch from troubleshooting people to troubleshooting computers after he came to the states. Not entirely a surprise there, if you know that his second preference for college is Mathematics. Ying is two times Admin Framework MVP awardee (2007-2008).His previous employment experience in the US includes UUNET, MCI WorldCom. MMC (Marsh & McLennan Companies), Merrill Lynch. He is currently employed by Related Companies as a Senior Infrastructure Engineer. He is proficient in virtually all Microsoft products (Office/Back office). His craving for efficiency naturally leads him to scripting, automation and before you know it, PowerShell! He is currently a MCSE (NT4, 2000, 2003) and MCITP Server Administrator. Ying enjoys wines and love to travel. His non work related passion is to advocate Health Living!

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