Plan and implement security for virtual networks, private access, and public access to Azure resources.
Encompasses planning and implementing security for virtual networks including NSGs, ASGs, Virtual Network Manager, user-defined routes, VNet peering, VPN gateways, Virtual WAN, and ExpressRoute encryption. Covers security for private access to Azure resources using Service Endpoints, Private Endpoints, and Private Link. Also includes public access security through TLS implementation, Azure Firewall, Application Gateway, Front Door with CDN, WAF, and DDoS Protection.
5 minutes
5 Questions
Secure networking in Azure is a fundamental aspect of protecting cloud resources and data from unauthorized access and cyber threats. As an Azure Security Engineer, understanding secure networking involves implementing multiple layers of defense to protect your infrastructure.
Azure Virtual Networks (VNets) form the foundation of secure networking, allowing you to create isolated network environments where you can deploy and manage resources. Network Security Groups (NSGs) act as virtual firewalls, controlling inbound and outbound traffic to network interfaces, VMs, and subnets through security rules based on source, destination, port, and protocol.
Azure Firewall provides centralized network security policy enforcement across multiple subscriptions and virtual networks. It offers stateful packet inspection, threat intelligence-based filtering, and application-level protection. For web applications, Azure Web Application Firewall (WAF) protects against common exploits like SQL injection and cross-site scripting.
Private endpoints enable secure connections to Azure PaaS services over private IP addresses within your VNet, eliminating exposure to the public internet. Azure Private Link extends this capability, ensuring traffic remains on the Microsoft backbone network.
Network segmentation through subnets and VNet peering allows you to organize resources and control traffic flow between different network segments. Azure Bastion provides secure RDP and SSH access to virtual machines through the Azure portal, eliminating the need for public IP addresses on VMs.
DDoS Protection safeguards applications from distributed denial-of-service attacks with automatic traffic monitoring and mitigation. Azure ExpressRoute enables private, dedicated connections between on-premises infrastructure and Azure datacenters for enhanced security and reliability.
Network Watcher provides monitoring, diagnostics, and analytics tools to understand network performance and health. Implementing zero-trust principles, encrypting data in transit using TLS, and regularly reviewing network configurations are essential practices for maintaining a robust security posture in Azure networking environments.Secure networking in Azure is a fundamental aspect of protecting cloud resources and data from unauthorized access and cyber threats. As an Azure Security Engineer, understanding secure networking involves implementing multiple layers of defense to protect your infrastructure.
Azure Virtual Networ…