> Login-AzureRMAccount
> Select-AzureRmSubscription -Name "Test-Subscription"

> Get-AzureRmNetworkSecurityGroup -ResourceGroupName "NSG-Test" | SELECT Name, SecurityRules

> $nsg = Get-AzureRmNetworkSecurityGroup -ResourceGroupName "NSG-Test" -Name "Vnet-NSG"
> $nsgVNet | Add-AzureRmNetworkSecurityRuleConfig -Name "AllowFTP" -Description "Allow FTP port in for FTP server VM" -Protocol Tcp -SourcePortRange "*" -DestinationPortRange "21" -SourceAddressPrefix "*" -DestinationAddressPrefix "10.0.4.4" -Access Allow -Direction Inbound -Priority 200 | Set-AzureRmNetworkSecurityGroup

> $nsg = Get-AzureRmNetworkSecurityGroup -Name "Vnet-NSG" -ResourceGroupName "NSG-Test"
< $nsg | Get-AzureRmNetworkSecurityRuleConfig -Name "AllowFTP"
> Set-AzureRmNetworkSecurityRuleConfig -Name "AllowFTP" -NetworkSecurityGroup $nsg -Protocol "UDP" -Priority 150