Microsoft Releases Azure Firewall Premium in Public Preview

Microsoft has announced that the latest Premium Level for its managed cloud-based network security service Azure Firewall has reached the public preview as of today.

Azure Firewall requires zero maintenance and provides consumers with security for their Azure Virtual Network infrastructure, as well as unlimited cloud scalability and smooth deployment.

The Azure Firewall Premium public preview adds new features needed for compassionate and controlled environments.

"Azure Firewall Premium is utilizing Firewall Policy, a global resource that can be used to manage your firewalls using Azure Firewall Manager centrally," Microsoft said.

"Starting this release, all new features will be configurable via Firewall Policy only. This includes TLS Inspection, IDPS, URL Filtering, web categories, and more."

Customers would still be able to use the Firewall Rules (Classic) to configure existing Regular Firewall features. In contrast, the Firewall Policy may be handled separately or with the Azure Firewall Manager's aid.

Image Resource : Microsoft

As detailed in Microsoft's announcement today, the latest Azure Firewall Premium tier adds the following new capabilities:

1.Transport Layer Security (TLS) Inspection: Azure Firewall Premium decrypts outbound traffic, performs the necessary value-added security functions, and re-encrypts the traffic sent to the original destination.

2.Intrusion Detection and Prevention System (IDPS): Azure Firewall Premium offers IDPS-based signatures for rapid attack detection by searching for particular patterns, such as byte sequences in network traffic, or recognized malicious instruction sequences used by malware.

3.Web Categories: Allows administrators to allow or deny users access to the Internet-based on categories (e.g. social networking, search engines, gambling) and decreases the time spent on managing individual FQDNs and URLs. This feature is also available for Azure Firewall Standard-based only on FQDNs.

4.URL Filtering: Enables users to reach various URLs for both plain text and encrypted traffic, usually used in site categories.

TLS Inspection prevents malware from being transmitted through encrypted connections, and IDPS (short intrusion detection and prevention system) helps identify and block malicious traffic and activities.

Azure Firewall Premium also makes it possible to limit access to web content using built-in URL filtering and enhanced content filtering capabilities through the Web Categories feature.

It would be best to have a free account and an Azure subscription to deploy and customize Azure Firewall Premium Preview.

Microsoft offers the template required to install the full Azure Firewall Premium testing environment here:


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Microsoft Releases Azure Firewall Premium in Public Preview