What you'll learn

Modern networks often fail due to weak configurations, limited visibility, and unstructured troubleshooting, leading to outages and security incidents that are difficult to diagnose and recover from. In this course, Resilient Infrastructure for Security and Troubleshooting, you’ll gain the ability to design, secure, and troubleshoot resilient network infrastructure. First, you’ll explore foundational security controls such as device hardening, access control, and identity-based security. Next, you’ll discover how attacks, misconfigurations, and traffic anomalies impact network availability and how to detect them using logs and packet analysis. Finally, you’ll learn how to apply a structured troubleshooting process to restore services, recover configurations, and strengthen resilience after incidents. When you’re finished with this course, you’ll have the skills and knowledge of resilient infrastructure and security-aware troubleshooting needed to maintain stable, secure, and recoverable network environments.