Azure Network Interface NAT Rule Association

This page shows how to write Terraform and Azure Resource Manager for Network Interface NAT Rule Association and write them securely.

azurerm_network_interface_nat_rule_association (Terraform)

The Interface NAT Rule Association in Network can be configured in Terraform with the resource name azurerm_network_interface_nat_rule_association. The following sections describe 10 examples of how to use the resource and its parameters.

Example Usage from GitHub

loadbalancers.tf#L124
resource "azurerm_network_interface_nat_rule_association" "LB1natrule113561InterfaceAssociation" {
        network_interface_id  = azurerm_network_interface.VM1356interface1.id
        ip_configuration_name = "VM1356internalIP"
        nat_rule_id           = azurerm_lb_nat_rule.LB1natrule11356.id
    }

azure_lb.tf#L105
resource "azurerm_network_interface_nat_rule_association" "SSH1" {
  network_interface_id    = element(azurerm_network_interface.F5.*.id, 0)
  ip_configuration_name   = element(azurerm_network_interface.F5[0].ip_configuration.*.name,0)
  nat_rule_id             = azurerm_lb_nat_rule.SSH1.id
}

main.tf#L122
resource "azurerm_network_interface_nat_rule_association" "ssh-nat-association" {
    count = var.web_instance_count
    network_interface_id  = azurerm_network_interface.my-nw-interface[count.index].id
    ip_configuration_name = "terraformipconfig"
    nat_rule_id           = azurerm_lb_nat_rule.ssh-nat-rule.id
}
lb.tf#L104
resource "azurerm_network_interface_nat_rule_association" "controller" {
  network_interface_id  = azurerm_network_interface.controller[0].id
  ip_configuration_name = "internal"
  nat_rule_id           = azurerm_lb_nat_rule.controller.id
}

main.tf#L32
resource "azurerm_network_interface_nat_rule_association" "lb_nat_association" {
  ip_configuration_name = var.ip_config_name
  nat_rule_id           = azurerm_lb_nat_rule.lb_nat_rule.id
  network_interface_id = var.nic_id
main.tf#L7
resource "azurerm_network_interface_nat_rule_association" "this" {
  ip_configuration_name = var.ip_configuration_name
  nat_rule_id           = var.nat_rule_id
  network_interface_id  = var.network_interface_id

  dynamic "timeouts" {
main.tf#L7
resource "azurerm_network_interface_nat_rule_association" "this" {
  ip_configuration_name = var.ip_configuration_name
  nat_rule_id           = var.nat_rule_id
  network_interface_id  = var.network_interface_id

  dynamic "timeouts" {
Load%20balancer.tf#L41
resource "azurerm_network_interface_nat_rule_association" "main" {
  network_interface_id  = azurerm_network_interface.main.id
  ip_configuration_name = "internal"
  nat_rule_id           = azurerm_lb_nat_rule.main.id
lb.tf#L35
resource "azurerm_network_interface_nat_rule_association" "nic-nat" {
  network_interface_id  = azurerm_network_interface.nic.id
  ip_configuration_name = azurerm_network_interface.nic.ip_configuration[0].name
  nat_rule_id           = azurerm_lb_nat_rule.lb-nat-rule.id

13.mynic1.tf#L28
resource "azurerm_network_interface_nat_rule_association" "natrule1" {
  network_interface_id  = azurerm_network_interface.nic1.id
  ip_configuration_name = "myNicConfiguration1"
  nat_rule_id           = azurerm_lb_nat_rule.natrule1.id
}

Review your Terraform file for Azure best practices

Shisho Cloud, our free checker to make sure your Terraform configuration follows best practices, is available (beta).

Parameters

Explanation in Terraform Registry

Manages the association between a Network Interface and a Load Balancer's NAT Rule.

Tips: Best Practices for The Other Azure Network Resources

In addition to the azurerm_network_security_group, Azure Network has the other resources that should be configured for security reasons. Please check some examples of those resources and precautions.

risk-label

azurerm_network_security_group

Ensure to disable RDP port from the Internet

It is better to disable the RDP port from the Internet. RDP access should not be accepted from the Internet (*, 0.0.0.0, /0, internet, any), and consider using the Azure Bastion Service.

risk-label

azurerm_network_security_rule

Ensure to set a more restrictive CIDR range for ingress from the internet

It is better to set a more restrictive CIDR range not to use very broad subnets. If possible, segments should be divided into smaller subnets.

risk-label

azurerm_network_watcher_flow_log

Ensure to enable Retention policy for flow logs and set it to enough duration

It is better to enable a retention policy for flow logs. Flow logs show us all network activity in the cloud environment and support us when we face critical incidents.

Review your Azure Network settings

In addition to the above, there are other security points you should be aware of making sure that your .tf files are protected in Shisho Cloud.

Microsoft.Network/loadBalancers/inboundNatRules (Azure Resource Manager)

The loadBalancers/inboundNatRules in Microsoft.Network can be configured in Azure Resource Manager with the resource name Microsoft.Network/loadBalancers/inboundNatRules. The following sections describe how to use the resource and its parameters.

Example Usage from GitHub

An example could not be found in GitHub.

Parameters

  • name required - string
  • type required - string
  • apiVersion required - string
  • properties required
      • frontendIPConfiguration required
          • id required - string

            Resource ID.

      • protocol required - string

        The reference to the transport protocol used by the load balancing rule.

      • frontendPort required - integer

        The port for the external endpoint. Port numbers for each rule must be unique within the Load Balancer. Acceptable values range from 1 to 65534.

      • backendPort required - integer

        The port used for the internal endpoint. Acceptable values range from 1 to 65535.

      • idleTimeoutInMinutes optional - integer

        The timeout for the TCP idle connection. The value can be set between 4 and 30 minutes. The default value is 4 minutes. This element is only used when the protocol is set to TCP.

      • enableFloatingIP optional - boolean

        Configures a virtual machine's endpoint for the floating IP capability required to configure a SQL AlwaysOn Availability Group. This setting is required when using the SQL AlwaysOn Availability Groups in SQL server. This setting can't be changed after you create the endpoint.

      • enableTcpReset optional - boolean

        Receive bidirectional TCP Reset on TCP flow idle timeout or unexpected connection termination. This element is only used when the protocol is set to TCP.

Frequently asked questions

What is Azure Network Interface NAT Rule Association?

Azure Network Interface NAT Rule Association is a resource for Network of Microsoft Azure. Settings can be wrote in Terraform.

Where can I find the example code for the Azure Network Interface NAT Rule Association?

For Terraform, the nzebar/Terraform, jungcheolkwon/blueprint and tkaburagi/tfe-on-azure source code examples are useful. See the Terraform Example section for further details.