Powershell Remoting

Enable PSRemoting remotely

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$FormatEnumerationLimit=-1
$servers=''

$cred = Get-Credential

foreach ($server in $servers){
Invoke-WmiMethod -ComputerName $server -Namespace root\cimv2 -Class Win32_Process -Name Create -Credential $cred -Impersonation 3 -EnableAllPrivileges -ArgumentList "powershell Start-Process powershell -Verb runAs -ArgumentList 'Enable-PSRemoting –force'"
}

Get Remote Servers Local Administrators

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Get-ADComputer -Filter {
  OperatingSystem -Like 'Windows*Server*' -and Enabled -eq $true
} | ForEach-Object -Process {
  Invoke-Command -cn  $_.Name -EA 0 -ScriptBlock {
    $members = net.exe localgroup administrators | 
    Where-Object -FilterScript {
      $_ -AND $_ -notmatch 'command completed successfully'
    } | 
    Select-Object -Skip 4
    New-Object -TypeName PSObject -Property @{
      Computername = $env:COMPUTERNAME
      Group        = 'Administrators'
      Members      = $members
    }
  } |
  Select-Object -Property ComputerName,Members | Out-String -Width 1500
}

Remove Domain Admins Group From Remote Servers Local Administrators

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Get-ADComputer -SearchBase 'DC=domain,DC=local' -Filter {
  OperatingSystem -Like 'Windows*Server*' -and Enabled -eq $true
} |
Where-Object -FilterScript {
  $_.DistinguishedName -notlike '*OU=Domain Controllers*'
} |
ForEach-Object -Process {
  Invoke-Command -cn  $_.Name -EA 0 -ScriptBlock {
    $ComputerName = $env:COMPUTERNAME

    if ([bool](Get-LocalGroupMember -Group 'Administrators' -Member 'domain\Server Admins' -ErrorAction SilentlyContinue))
    {
      if ([bool](Get-LocalGroupMember -Group 'Administrators' -Member 'domain\Domain Admins' -ErrorAction SilentlyContinue))
      {
        Remove-LocalGroupMember -Group 'Administrators' -Member 'Domain Admins' -Confirm:$false -WhatIf
        Write-Host "Domain Admins Group was removed from BULTIN\Administrators group on server $ComputerName" -ForegroundColor Green
      }
      else
      {
        Write-Host "Domain Admins Group is not a member of BULTIN\Administrators group on server $ComputerName" -ForegroundColor Yellow
      }
    }
    else
    {
      Write-Host "Tool Division - Server Admins Group is not a member of BULTIN\Administrators group on server $ComputerName" -ForegroundColor Red
    }
  }
}