script to modify DNS server IP on multiple windows clients at once.

gistfile1.txt

$computer = get-content c:\temp\servers.txt

foreach ($comp in $computer)
{
try{
$a = (Get-WmiObject -Class Win32_NetworkAdapterConfiguration -ComputerName $comp -ErrorAction Stop | Where-Object {$_.ipenabled -eq "true"}).InterfaceIndex
Invoke-Command -ComputerName $comp -ScriptBlock {param( $b) netsh interface ip delete dns name=$b 10.10.220.1 } -args $a -ErrorAction Stop
}
catch
{
Write-Output "Failed  $comp"  | Out-File c:\temp\error.txt -Append
}
}