如何在没有 NSG 的情况下创建 Azure VM？

Question

I want to create a VM without nsg. In the New-AzVm cmdlet, I specify $null in the PublicIP parameter - and it works (ie it does not create a Public IP). But this does not work with nsg. Here is my code:

$Date = Get-Date -Format "MMddyymm"
$user = "Sitecore"
$password = ConvertTo-SecureString "Qwerty123456" -AsPlainText -Force
$credential = New-Object -TypeName System.Management.Automation.PSCredential -ArgumentList $user, $password
$RGroup = 'test'
$Location = "Westus3"
$VMName = "vmtest$date"
$image = "vmtest-image-20220805165444"
$vnet = "vnet1"
$NSG = "nsg$date"
$SizeVM = "Standard_b4ms"
$NIC = "$VMName$date"
$Subnet = "default"
$tags = @{'xxx' = 'yyy'}

New-AzVM -ResourceGroupName $RGroup `
    -Name $VMName `
    -Image $image `
    -Location $Location `
    -VirtualNetworkName $vnet `
    -SubnetName $Subnet `
    -SecurityGroupName $null `
    -PublicIpAddressName $null `
    -Credential $credential `
    -Size $SizeVM 

Answer 1

First of all, you should know, that it is highly not recommended using no NSG. But if you need to do so, the only way to do it with Azure Powershell is (like @SaiSakethDuduru already said) with -nsg "". So need to use the stop-parsing affects variables.

For additional information on parsing take a look in here: MS DOC about Parsing

Answer 2

When we use new-azvm cmdlet it don't work create VM without NSG. Only Azure CLI can do it.

az vm create --nsg '""'