Description

Network security is the first line of defense in any organization’s cybersecurity strategy. This foundational course is designed for IT professionals, system administrators, and security beginners seeking a thorough understanding of how to protect networks from both internal and external threats. You’ll begin by learning how modern networks are structured and where vulnerabilities can exist—focusing on OSI and TCP/IP models, common protocols, and network devices like routers, switches, and firewalls. You’ll then explore core security tools and techniques including network segmentation, access control lists (ACLs), VPN configuration, wireless encryption (WPA3), intrusion detection/prevention systems (IDS/IPS), and next-gen firewalls. Learners will also practice log analysis, packet inspection, and traffic monitoring using tools like Wireshark and Snort. The course explains how to build layered defenses, implement secure configurations, and respond to network anomalies. Cloud security considerations for hybrid environments (e.g., AWS, Azure) are also introduced. Throughout the course, real-world attack scenarios such as DDoS, ARP spoofing, and man-in-the-middle attacks are studied to reinforce practical application. By the end, you’ll have the skills to build and maintain a resilient and secure network infrastructure.