How do I configure SQL Database Firewalls?

Configuring SQL Database Firewalls involves defining the Firewall rules to control access to Azure SQL Database. Here are the steps you can follow to configure SQL Database Firewalls:

  1. Define Firewall rules: You need to define Firewall rules to allow or deny incoming connections to your Azure SQL Database. Firewall rules can be defined at the database level or the server level. For example, you can define a Firewall rule that allows connections from a specific IP address or a range of IP addresses.
  2. Configure Firewall settings: Once you have defined the Firewall rules, you can configure the Firewall settings for your Azure SQL Database. This involves enabling the Firewall, specifying the Firewall rules, and setting up Azure Virtual Network Service Endpoints or Private Link if required.
  3. Test Firewall connectivity: After configuring the Firewall settings, you should test the connectivity to your Azure SQL Database to ensure that the Firewall rules are configured correctly.

Here are the detailed steps to configure SQL Database Firewalls:

  1. Log in to the Azure portal and navigate to your SQL Database instance.
  2. Click on the “Firewalls and virtual networks” tab under the “Security” section.
  3. Enable the Firewall by toggling the button to “On”.
  4. Define Firewall rules by adding a new rule. You can specify the start and end IP addresses or IP address range, and the name of the rule. You can also specify whether the rule applies to the database or the server.
  5. Configure Azure Virtual Network Service Endpoints or Private Link if required. This step is optional, but if you want to restrict access to your database to only trusted networks, you can configure Virtual Network Service Endpoints or Private Link. Virtual Network Service Endpoints are used to restrict access to your database from specific Virtual Networks, while Private Link is used to access your database over a private network connection.
  6. Test connectivity to your Azure SQL Database. You can test connectivity by using tools like SQL Server Management Studio, Azure Data Studio, or the Azure portal.

It is important to note that Firewall rules apply to all connections, including connections made through Azure portal, APIs, and other applications. Therefore, it is essential to configure Firewall rules carefully and ensure that only authorized users and applications can access your Azure SQL Database.

Author: tonyhughes