Network Security in Action

Network Security in Action: Protect Systems, Detect Threats, and Enforce Security at Every Layer Network Security in Action: Protect Systems, Detect Threats, and Enforce Security at Every Layer is your complete guide to building, defending, and monitoring secure networks in today's threat-laden digital environment. Written for security professionals, network engineers, and IT administrators who want practical, hands-on knowledge, this book bridges the gap between theory and actionable defense strategies. Through a clear and methodical approach, you'll master the critical components of network security-from configuring firewalls and intrusion detection systems to designing secure cloud networks and responding to real-world incidents. You'll learn how to harden routers, isolate network zones, detect lateral movement, trace adversary behavior, and implement zero-trust principles across enterprise and hybrid infrastructures. >You'll gain the skills to: Design secure topologies with subnets, gateways, and ACLs Deploy and tune intrusion detection systems like Suricata and Zeek Monitor, capture, and analyze traffic using tools like Wireshark and tcpdump Automate alerts, blocking, and responses with modern open-source stacks Build cloud-native defenses using VPCs, WAFs, and IAM policy controls Investigate breaches, isolate compromised systems, and preserve digital evidence Run red/blue team simulations and post-incident reviews for continuous improvement >Start building stronger defenses today-equip yourself with the skills and confidence to protect what matters most.