Azure public IP address is not listed in Shodan

# NIC without a public IP association
resource "azurerm_network_interface" "<example_resource_name>" {
  name                = "<example_resource_name>"
  location            = "<LOCATION>"
  resource_group_name = "<RESOURCE_GROUP>"

  ip_configuration {
    name                          = "ipconfig1"
    subnet_id                     = "<example_resource_id>"
    private_ip_address_allocation = "Dynamic"
    # CRITICAL: Omit public_ip_address_id -> no public IP, preventing Shodan listing
  }
}

// Remove public exposure by NOT associating a public IP
resource subnet 'Microsoft.Network/virtualNetworks/subnets@2023-11-01' existing = {
  name: '<example_vnet_name>/<example_subnet_name>'
}

resource nic 'Microsoft.Network/networkInterfaces@2023-11-01' = {
  name: '<example_resource_name>'
  location: resourceGroup().location
  properties: {
    ipConfigurations: [
      {
        name: 'ipconfig1'
        properties: {
          privateIPAllocationMethod: 'Dynamic'
          subnet: { id: subnet.id }
          // CRITICAL: No 'publicIPAddress' property -> NIC has no public IP, preventing Shodan listing
        }
      }
    ]
  }
}