In this post, I am going to share some quick tips, including Q/A’s and useful links from Azure Job Oriented Day 6 Training of our recently launched new batch of Microsoft Azure Job Oriented, in which we have 25+ hands-on labs in the course.
On our Day 6 Live Session, we covered Azure Firewall.
The previous week In Day 5 session we covered about Azure NSG,ASG and Bastion host.
Two weeks before In Day 4 session we covered about Azure VPN Gateway , Express Route.
Three weeks before In Day 3 session we covered about Azure Networking and VNet peering.
Four weeks before In Day 2 session we covered about Azure Resource Manager, Subscriptions, NSG, and PowerShell.
Five weeks before In Day 1 session we covered about Azure Cloud Fundamentals, App Services, and Scaling Strategies.
Azure Firewall
Azure Firewall is a Microsoft Azure cloud-based network security solution that protects virtual networks by offering stateful packet inspection, application and network policies, and threat intelligence integration. It provides granular control over inbound and outbound traffic, supports high availability deployment, and integrates seamlessly with Azure services, providing centralized management, detailed logging, and analytics for effective virtual network traffic protection and monitoring, making it a valuable tool for securing critical resources and applications.
Azure Firewall Basic
Azure Firewall Basic is a managed, cloud-based network security service that safeguards the resources of your Azure Virtual Network. It is a stateful firewall capable of inspecting and filtering network data at Layers 3 and 4. Built-in high availability, Availability Zones, unrestricted cloud scalability, network traffic filtering rules, application FQDN filtering rules, FQDN tags, service tags, threat intelligence in alert mode, outbound SNAT support, inbound DNAT support, multiple public IP addresses, Azure Monitor logging, and certifications are among the features of Azure Firewall Basic.
Azure Firewall Standard
Azure Firewall Standard is a managed, cloud-based network security service that safeguards the resources of your Azure Virtual Network. It is a stateful firewall capable of inspecting and filtering network data at Layers 3 and 4. Built-in high availability, Availability Zones, unrestricted cloud scalability, network traffic filtering rules, application FQDN filtering rules, FQDN tags, service tags, threat intelligence in deny mode, IDPS, Azure Firewall Manager, outbound SNAT support, inbound DNAT support, multiple public IP addresses, Azure Monitor logging, and certifications are among the features of Azure Firewall Standard. It also has a maximum throughput of 30 Gbps.
Azure Firewall Premium
Azure Firewall Premium is Azure Firewall’s most advanced tier. It provides all of the capabilities of Azure Firewall Standard, as well as TLS inspection, URL filtering, geolocation filtering, real-time threat intelligence, and Azure Front Door support. These capabilities can aid in the defense against a broader range of threats, such as man-in-the-middle assaults, data exfiltration, malware, and phishing attempts. Azure Firewall Premium is an excellent solution for businesses that require the most advanced network security protection.
Types of Firewall Rules
Application Rules : Application Rules in Azure Firewall allow you to specify which applications or services are allowed to communicate over the firewall. These rules function by analyzing data and identifying applications based on their features. You have control over which applications are allowed or denied, allowing you to regulate data flow based on your organization’s needs, security rules, and compliance requirements.
Network Rules : Azure Firewall Network Rules operate at the network level, focused on IP addresses, ports, and protocols. These rules allow you to specify how various forms of network traffic should be handled. You can allow or reject traffic depending on source and destination IP addresses and port numbers, allowing you to implement limitations and permissions for different types of connections.
DNAT Rules : DNAT (Destination Network Address Translation) Rules in Azure Firewall facilitate the redirection of incoming traffic to specific internal resources, like servers, by mapping a public IP address and port to a private IP address and port. This is often used in scenarios like load balancing, where incoming requests are evenly distributed among multiple servers to ensure efficient and reliable service delivery. DNAT rules play a vital role in managing incoming traffic patterns and optimizing resource utilization within your network infrastructure.
Frequently Asked Questions
Q1) Where the IP get assigned ?
Ans. At NIC level
Q2) Can We communicate between two subscriptions?
Ans. Yes, we can do it through VNet peering.
Q3) What is Azure NAT gateway?
Ans. Azure NAT Gateway is a managed networking solution provided by Microsoft Azure that offers safe and controlled outbound connectivity for resources within a virtual network (VNet) while prohibiting unsolicited inbound connections from the internet. It is often used to offer internet connectivity for virtual machines (VMs) and other resources within a VNet by acting as a dedicated gateway for Network Address Translation (NAT).
Q4) What is WAN?
Ans. Azure Virtual WAN is a networking service that combines numerous networking, security, and routing functions into a single operational interface. It is intended to assist businesses in connecting their on-premises networks, branch offices, and remote users to Azure.
Related/References
- [AZ-104] Microsoft Azure Administrator Exam: Everything You Need To Know
- Activity Guides/Hands-on Lab Exercise
- Cloud Services Model
- Cloud Computing – Overview & Benefits
- Azure Region and Availablity Zone
- How to create a free tier account on Azure
- Microsoft Azure Core Services For Beginners
Next Task For You
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