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Course 29 - AZ-500 Microsoft Azure Security Technologies | Episode 4: Protecting Azure Virtual Networks
Published 1 month, 3 weeks ago
Description
In this lesson, you’ll learn about implementing and securing Azure Virtual Networks (VNETs) for robust cloud network protection:Virtual Network Foundations
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- Understanding VNET architecture in Microsoft Azure:
- Defining private IP ranges using CIDR notation
- Configuring custom DNS settings
- Segmenting networks into subnets for isolation
- Service Endpoints:
- Creating secure, direct connections to Azure services (e.g., Storage, SQL)
- Keeping traffic within the Microsoft backbone instead of the public internet
- Connecting multiple VNETs across regions securely
- Enabling:
- VNET-to-VNET communication over Microsoft’s backbone
- Gateway transit for shared VPN/ExpressRoute access
- Supporting scalable architectures like hub-and-spoke models
- Using NSGs as stateful firewalls to control traffic flow
- Applying rules based on the five-tuple model:
- Source IP
- Source port
- Destination IP
- Destination port
- Protocol
- Leveraging service tags to simplify rule management for Azure services
- Grouping virtual machines by role (e.g., Web, App, Database tiers)
- Applying security policies based on logical groupings instead of IPs
- Simplifying rule management in complex environments
- Building a secure lab environment:
- Deploying a Windows bastion host for controlled access
- Creating a Linux application server
- Applying strict access controls:
- Restricting RDP access to a trusted public IP only
- Allowing SSH communication between authorized internal systems
- Blocking all traffic by default
- VNETs provide network isolation and segmentation in the cloud
- Security is enforced through layered controls (NSGs + ASGs + endpoints)
- Proper design (e.g., bastion hosts, least access rules) significantly reduces attack surface
You can listen and download our episodes for free on more than 10 different platforms:
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