Check Servers NSLookup of a Listener to Match Active Node IP


# Dynamic Credential method 1
$who = whoami
	if ($who.Substring($who.length-2, 2)="-admin"){$username=$who;}
    else {$username=$who+"-admin";}
$password = Read-Host -Prompt "Input the password for account $username" -AsSecureString
$cred = New-Object -TypeName System.Management.Automation.PSCredential -ArgumentList $username,$password
$elevate = New-PSSession -ComputerName localhost -Credential $cred

foreach ($server in $servers){
    #$ip=(invoke-command -Session $elevate -ScriptBlock {(nslookup $Args[0] | Select-String Address | Where-Object LineNumber -eq 5).ToString().Split(' ')[-1];} -Args $listener) 
    $ip=(invoke-command -Session $elevate -ScriptBlock {(Resolve-DnsName $Args[0]).IPAddress;} -Args $listener)
    $result= if ([IPAddress]$ip.Trim() -eq [IPAddress]$activeNode.Trim()){"Pass";}else{"fail";};
    $server+": $result"    

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