Overview

Master the art of modern networking and firewall administration with Networking & Firewalls Mastery: Build and Secure Next-Generation Networks with pfSense, OPNsense, WireGuard, and Zero Trust Architecture. This comprehensive guide delivers practical, hands-on instruction for building, securing, and managing enterprise and homelab networks, combining theory, configuration, and real-world examples in one essential resource. Designed for network engineers, DevOps specialists, and cybersecurity professionals, this book provides step-by-step guidance through every critical aspect of network deployment and security. You will learn to: Configure WAN, LAN, VLAN, and optional interfaces for segmented and scalable networks. Create firewall rules, NAT policies, and port forwarding for inbound and outbound traffic control. Deploy remote access OpenVPN connections, site-to-site IPsec tunnels, and WireGuard peers to enable secure connectivity across sites and remote users. Implement Zero Trust network zones, identity-based access controls, and multi-factor authentication to strengthen security at the device and user level. Automate configuration backups, updates, and monitoring using Ansible, pfSense/OPNsense scripts, Prometheus, and Grafana. Build redundant, high-availability topologies, configure CARP failover, and perform load balancing across multiple Internet gateways. Integrate firewalls into cloud environments, virtualized labs, and homelab networks for scalable and flexible architectures. Deploy DNS filtering, ad blocking, and traffic shaping to enhance performance and protect users. Leverage real-time logging, monitoring, and IDS/IPS systems like Suricata to detect and respond to threats efficiently. Each chapter provides complete configuration examples, GUI walkthroughs, command-line instructions, and verification techniques, allowing you to implement these solutions immediately in production or lab environments. Every workflow focuses on security, performance, and operational efficiency, giving you measurable improvements in network visibility, control, and reliability. Whether you are managing corporate networks, securing remote users, or experimenting with a homelab, this book equips you with the knowledge and tools to design, deploy, and maintain secure, scalable, and automated networks confidently. Take your networking skills to the next level and strengthen your cybersecurity expertise with Networking & Firewalls Mastery-the ultimate guide for building modern, secure, and highly available network infrastructures.

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