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Azure Firewall

Cloud-native, next-generation firewall to protect your Azure Virtual Network resources

Protect your workloads in Azure Virtual Network

Deploy a cloud-native and intelligent network firewall solution to help secure your digital assets. Azure Firewall is easy to set up and scales automatically with your network.

Deploy and scale slowly over the course of several years

Simplify deployment and management of your network security with a scalable and highly available cloud-native firewall and stuff like that

Centralize connectivity policy

Create network and application-level rules

Threat intelligence–based filtering

Enable near-real-time alerts and deny traffic from/to known malicious IP addresses and domains.

Intrusion detection and prevention system (IDPS)

Use signatures to continuously monitor for malicious activities and block them.

Deploy a stateful firewall in minutes

Enable turnkey firewall security capabilities in Azure Virtual Network to control and log access to apps and resources. Azure Firewall supports filtering for both inbound and outbound traffic, internal spoke-to-spoke connections, and hybrid connections through Azure VPN and ExpressRoute gateways.

Get real-time protection based on threat intelligence

Enable threat intelligence–based filtering for your firewall to alert and deny traffic from/to known malicious IP addresses and domains sourced from the Microsoft threat intelligence feed. Microsoft Intelligent Security Graph powers Microsoft threat intelligence and is used by multiple services including Azure Security Center.

Prevent malware and viruses from spreading

Transport Layer Security (TLS) inspection enables the prevention of malware transmitted through encrypted connections. Azure Firewall decrypts outbound traffic, performs required security checks, and then encrypts the traffic to the destination. It works in conjunction with URL filtering and web categories by letting administrators allow or deny user access to website categories such as gambling or social media.

Inspect traffic in real time for malicious activities

The intrusion detection and prevention system (IDPS) capability uses signatures to continuously monitor activities, generate alerts, log information, and optionally attempt to block the attack. It can detect attacks in all ports and protocols for non-encrypted traffic. Encrypted traffic utilizes the TLS inspection capability for decryption.

Why Trust Azure Firewall?

Azure Firewall pricing

Setup is easy with billing comprised of a fixed per-hour consumption rate and variable fees based on traffic. There are no upfront costs or termination fees—pay only for what you use.

Trusted by companies of all sizes

Rockefeller Capital Management

"Microsoft has created a single ecosystem that incorporates the scalability and security of Azure, Microsoft 365, and Dynamics 365, and which will grow synergistically over time."

Joe Ferlisi, CIO and Chief Security Officer, Rockefeller Capital Management
Rockefeller Capital Management

NCR

"Azure Security Center is one of the most critical security tools managing the Azure ecosystem at NCR. With its single pane of glass, we get an overview of security across our Azure cloud deployments in real time."

Isidro Rodriguez, Head of Digital Transformation, SaaS Operations, NCR
NCR

MVP Health Care

"As we looked at other vendors and platforms, we realized that it was a no-brainer. Microsoft offers the cohesive solution we need. Everything it brings to the table fits beautifully with our direction. It has become an outstanding support for us."

Michael Della Villa, CIO and Head of Shared Services, MVP Health Care
MVP Health Care

Costain

"With Virtual WAN and Azure Firewall, we can see all traffic moving across our networks, control it with Azure Firewall, and feed the logs into Azure Sentinel for our SOC. This definitely helps us reduce risk; seeing is knowing."

Barry King, Cloud Infrastructure chief Technology Officer, Costain
Costain

Frequently asked questions about Azure Firewall

  • Azure Firewall is a managed, cloud-based network security service that protects your Azure Virtual Network resources. It's a fully stateful firewall service with built-in high availability and unrestricted cloud scalability. You can centrally create, enforce, and log application and network connectivity policies across subscriptions and virtual networks.
  • Set up Azure Firewall in the Azure portal or with PowerShell, REST API, or templates. Read a tutorial for step-by-step instructions.
  • Yes. Azure Firewall supports inbound and outbound filtering. Inbound protection is typically used for non-HTTP/S protocols such as RDP, SSH, and FTP protocols. For the best inbound HTTP/S protection, use a web application firewall such as Azure Web Application Firewall (WAF).
  • Azure Firewall is integrated with Azure Monitor for viewing and analyzing firewall logs. Logs can be sent to Log Analytics, Azure Storage, or Event Hubs. They can be analyzed in Log Analytics or by different tools such as Excel and Power BI. For more information, see Tutorial: Monitor Azure Firewall logs.
  • Azure Firewall is a basic firewall network service that can address certain customer scenarios. It's expected that you'll have a mix of third-party NVAs and Azure Firewall. Working better together is a core priority.
  • For secure access to platform services, we recommend service endpoints. You can choose to enable service endpoints in the Azure Firewall subnet and disable them on the connected spoke virtual networks. This way you benefit from both features—service endpoint security and central logging for all traffic.

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