Securing Azure Networks with Network Security Groups (NSGs)

Securing cloud infrastructure starts with controlling who and what can access your virtual networks. Understanding how to restrict and allow traffic is a fundamental skill for any cloud professional. This written course guides you through the process of setting up, configuring, and managing Azure Network Security Groups (NSGs) directly through the Azure portal. You will transition from understanding basic networking concepts to confidently implementing secure-by-default traffic rules that protect your virtual machines and subnets. What you'll learn: 1. Understand foundational cloud networking concepts, including subnets, virtual networks, and IP addressing. 2. Configure inbound and outbound security rules within Azure Network Security Groups to restrict unauthorized access. 3. Apply zero-trust security principles to ensure your cloud resources are secure by default. 4. Associate security groups with network interfaces and subnets to implement multi-layered defense. 5. Analyze and troubleshoot traffic flow issues using built-in Azure portal diagnostics. You will start with key terminology and basic networking concepts before moving into step-by-step written walkthroughs of the Azure portal interfaces, rules configuration, and testing procedures. This course is designed for beginner cloud administrators, security enthusiasts, and IT professionals new to Azure networking, with no prior cloud experience required. Start reading today to build a secure foundation for your cloud infrastructure.