Powershell Get-Netadapter varible pass to Set-DnsClientServerAddress

Question

Good day everyone,

Trying to write a simple script that will find the friendly name of the Ethernet Adapter on a given machine and pass this string to the cmdlet 'Set-DnsClientServerAddress' so that I can change the DNS server settings on the Ethernet interface only.

I have tried this:

$EthAdapter = Get-NetAdapter -Name Ether* | select Name | Set-DnsClientServerAddress -ServerAddresses 192.168.0.1, 192.168.0.2 -PassThru

And get the error:

Set-DnsClientServerAddress : Parameter set cannot be resolved using the specified named parameters. At C:\users\zsnow\Desktop\setup.ps1:5 char:59 + ... lect Name | Set-DnsClientServerAddress -ServerAddresses 192.168.0.1, ... + ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + CategoryInfo : InvalidArgument: (@{Name=Ethernet 2}:PSObject) [Set-DnsClientServerAddress], ParameterBindingException + FullyQualifiedErrorId : AmbiguousParameterSet,Set-DnsClientServerAddress

I have tried this:

$EthAdapter = Get-NetAdapter -Name Ether* | select Name
Set-DnsClientServerAddress -InterfaceAlias $EthAdapter -ServerAddresses 192.168.0.1, 192.168.0.2 -PassThru

And get this error:

Set-DnsClientServerAddress : No MSFT_DNSClientServerAddress objects found with property 'InterfaceAlias' equal to '@{Name=Ethernet 2}'. Verify the value of the property and retry. At C:\users\zsnow\Desktop\setup.ps1:6 char:1 + Set-DnsClientServerAddress -InterfaceAlias $EthAdapter -ServerAddress ... + ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + CategoryInfo : ObjectNotFound: (@{Name=Ethernet 2}:String) [Set-DnsClientServerAddress], CimJobException + FullyQualifiedErrorId : CmdletizationQuery_NotFound_InterfaceAlias,Set-DnsClientServerAddress

Any assistance would be appreciated.

Answer 1

in your original post, you either need "select -expandproperty name" instead of "select name" in your first command, or $ethadapter.name in the second command. one or the other, not both. the way you have it written, $ethadapter is an array with one column called "name", so your dns command is trying to make a change on an adapter named, literally '@{Name=Ethernet 2}'. which doesn't exist.

Answer 2

Give this a try.

$EthAdapters = Get-NetAdapter -Name Ether*
foreach ($EthAdapter in $EthAdapters)
{
    Set-DnsClientServerAddress -ServerAddresses 192.168.0.1, 192.168.0.2 -PassThru -InterfaceAlias $EthAdapter.name -Verbose
}