Azure audit postgressql enable connection throttling remediation

Using Console

To enable “CONNECTION_THROTTLING” parameter for PostgreSQL Servers in Azure using Azure Console, please follow the below steps:Step 1: Login to the Azure Portal (https://portal.azure.com/).Step 2: Navigate to the Azure Database for PostgreSQL Server that you want to configure.Step 3: Click on the “Settings” option in the left-hand menu.Step 4: Under the “Settings” menu, click on the “Configuration” option.Step 5: In the “Configuration” menu, click on the “Add parameter” button.Step 6: In the “Add parameter” window, enter “CONNECTION_THROTTLING” in the “Parameter name” field.Step 7: In the “Value” field, enter the desired value for the parameter. For example, “1” to enable the parameter.Step 8: Click on the “OK” button to save the parameter.Step 9: Restart the PostgreSQL server for the changes to take effect.After following these steps, “CONNECTION_THROTTLING” parameter will be enabled for the PostgreSQL server in Azure.

Using CLI

To enable “CONNECTION_THROTTLING” parameter for PostgreSQL Servers on Azure using Azure CLI, follow these steps:

Open the Azure CLI on your local machine or use the Azure Cloud Shell.
Login to your Azure account using the command: az login.
Select the subscription in which your PostgreSQL server is present using the command: az account set --subscription <subscription_id>.
Get the resource ID of the PostgreSQL server by running the following command: az postgres server show --resource-group <resource_group_name> --name <server_name> --query id --output tsv.
Set the “CONNECTION_THROTTLING” parameter to “on” using the command: az postgres server configuration set --resource-group <resource_group_name> --server-name <server_name> --name "connection_throttling" --value "on".
Verify that the parameter has been set to “on” by running the command: az postgres server configuration show --resource-group <resource_group_name> --server-name <server_name> --name "connection_throttling".

Note: Replace <subscription_id>, <resource_group_name>, and <server_name> with your actual values.

Using Python

To remediate the misconfiguration “Enable CONNECTION_THROTTLING Parameter for PostgreSQL Servers” in Azure using Python, you can follow the below steps:

Import the required modules:

from azure.identity import DefaultAzureCredential
from azure.mgmt.postgresql import PostgreSQLManagementClient
from azure.mgmt.postgresql.models import Configuration, ConfigurationValue

Authenticate to Azure using DefaultAzureCredential:

credential = DefaultAzureCredential()

Create a PostgreSQLManagementClient object:

subscription_id = '<subscription_id>'
resource_group_name = '<resource_group_name>'
server_name = '<server_name>'

client = PostgreSQLManagementClient(credential, subscription_id)

Get the current configuration of the PostgreSQL server:

current_configuration = client.configurations.list_by_server(resource_group_name, server_name)

Check if the “CONNECTION_THROTTLING” parameter is already enabled:

is_connection_throttling_enabled = False

for configuration in current_configuration:
    if configuration.name == "CONNECTION_THROTTLING":
        is_connection_throttling_enabled = True
        break

If the “CONNECTION_THROTTLING” parameter is not enabled, set it to “ON” and update the configuration:

if not is_connection_throttling_enabled:
    new_configuration = Configuration(name="CONNECTION_THROTTLING",
                                       value=ConfigurationValue(default_value="on",
                                                                source="system-default"))
    client.configurations.create_or_update(resource_group_name, server_name, "CONNECTION_THROTTLING", new_configuration)

Verify that the parameter has been enabled by checking the updated configuration:

updated_configuration = client.configurations.list_by_server(resource_group_name, server_name)

for configuration in updated_configuration:
    if configuration.name == "CONNECTION_THROTTLING":
        print("CONNECTION_THROTTLING parameter is now enabled")

With these steps, you should be able to remediate the misconfiguration “Enable CONNECTION_THROTTLING Parameter for PostgreSQL Servers” in Azure using Python.

Using Terraform

resource "azurerm_postgresql_server" "EXISTING_SERVER" {
  name                = "EXISTING_POSTGRESQL_SERVER_NAME"   # replace with your server name
  resource_group_name = "RESOURCE_GROUP_NAME"               # replace with your resource group
  location            = "AZURE_REGION"                      # e.g. "eastus"

  sku_name   = "B_Gen5_2"
  version    = "11"
  storage_mb = 51200

  administrator_login          = "ADMIN_USERNAME"
  administrator_login_password = "ADMIN_PASSWORD"

  auto_grow_enabled                 = true
  backup_retention_days             = 7
  geo_redundant_backup_enabled      = false
  infrastructure_encryption_enabled = false
  public_network_access_enabled     = true
  ssl_enforcement_enabled           = true
  ssl_minimal_tls_version_enforced  = "TLS1_2"
}

resource "azurerm_postgresql_configuration" "connection_throttling" {
  name                = "connection_throttling"
  resource_group_name = azurerm_postgresql_server.EXISTING_SERVER.resource_group_name
  server_name         = azurerm_postgresql_server.EXISTING_SERVER.name
  value               = "ON"  # enable temporary connection throttling per IP
}

This change does not force replacement of the PostgreSQL server; it updates the configuration in place.Verification: terraform plan should show creation of azurerm_postgresql_configuration.connection_throttling with name = "connection_throttling" and value changing from null/"OFF" to "ON", with no -/+ replacement for the azurerm_postgresql_server.

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