Change the DNS from a list of servers:
#Change DNS for a list of servers
#Get the admin permissions
$LoginPassword = Get-Credential
#Get the list of computers from a text file
$computer = get-content C:\temp\servers.txt
#Get the DNS IP's using the get-wmiobject (using wmi as some servers dont have powershell installed)
$NICs = Get-WMIObject Win32_NetworkAdapterConfiguration -computername $computer -Credential $LoginPassword |where{$_.IPEnabled -eq “TRUE”}
# for each server list the current setting
Foreach($NIC in $NICs) {
Write-Host "DNS Servers before change:"
$NIC.DNSServerSearchOrder
#Change the settings to this
$DNSServers = "10.10.7.1","10.10.7.2"
$NIC.SetDNSServerSearchOrder($DNSServers)
#$NIC.SetDynamicDNSRegistration(“TRUE”)
#After Change - Not tested
Write-Host "DNS Servers after Change:"
$NIC.DNSHostName
$NIC.DNSServerSearchOrder
}
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