Azure Firewall And Network Security Groups

Azure Firewall

Azure Firewall is a managed, cloud-based network security service that helps protect our Azure Virtual Network resources. It offers a comprehensive network security solution for organizations.

1. Managed security service: Azure Firewall is a cloud-based network security service that safeguards Azure Virtual Network resources.

2. Inbound and outbound protection: It defends against malicious traffic both entering and leaving the network.

3. Rich features: Azure Firewall offers high availability, FQDN filtering, IP flow logging, and analytics to secure virtual networks and applications.

4. Granular access control: Application access policies can be defined based on fully qualified domain names (FQDNs) instead of IP addresses.

5. URL filtering and user/group rules: It supports URL filtering and customizable access policies for precise network traffic control.

6. Integration with Microsoft Entra ID: Existing identities can be used for authentication and authorization when accessing secured resources.

The Azure firewall is a central control point for protecting Azure workloads. It provides secure connections between virtual networks, allowing resource segmentation. Its built-in analytics help detect anomalies and threats. Allowlists and blocklists of Azure firewall manage IP address access. Moreover, Its IPSec VPN facilitates secure connections with on-premises networks. Azure Firewall is an excellent choice for robust cloud security.

Create Azure Firewall

Let’s assume that we have a virtual network, “VNet1,” with a subnet called “AzureFirewallSubnet,” and we want to add a firewall to it. Follow the steps given below to create a firewall: