- The Man Behind
Isaac Danso-Gyanx
He is an experienced Network and Security Consultant, and IT Coach, passionate about building the next generation of technology professionals. With years of hands-on expertise designing, configuring, and securing enterprise networks, he specializes in simplifying complex concepts into clear, practical lessons. As the founder and lead trainer at the Network Professional Training Center (NPTC), Isaac has guided countless students into rewarding careers in one of the fastest-growing sectors in IT. His books, To Be a Network Engineer and How To Become A Cisco Firewall Engineer, combine theory, real-world scenarios, and lab-based exercises to help readers gain confidence and technical mastery.
About Books
To Be a Network Engineer is a complete roadmap for anyone aspiring to build a career in networking. This practical guide takes you from the basics of computer networks through advanced routing, switching, VLANs, DHCP, NAT, VPNs, firewalls, and WAN technologies. It blends theory with real-world configurations, troubleshooting tips, and interview preparation, giving you both knowledge and hands-on confidence. Whether you’re just starting out or upgrading your skills, this book is your trusted companion to mastering network engineering in today’s fast-moving IT world.
How To Become A Cisco Firewall Engineer is a complete hands-on resource for network and security professionals. Designed as both a study companion and a lab manual, it walks you through Cisco ASA and Firepower Threat Defense firewall technologies step by step. Inside, you’ll find clear explanations of core networking concepts, firewall fundamentals, NAT, ACLs, VPNs, high availability, policy-based routing, and real-world enterprise security design. Each section includes practical labs and best practices to help you apply what you learn immediately. Whether preparing for a job role or advancing your skills, this guide gives you the confidence to secure networks effectively.
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To Be a Network Engineer gave me a solid foundation in networking. I started with very little knowledge, and now I can understand real-world setups with confidence. The labs and examples make everything practical and easy to apply on the job.
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Michael Torres,
Junior Network Engineer
I was struggling to configure firewalls until I found How To Become A Cisco Firewall Engineer. It breaks down every step in plain language. I followed along, and my first VPN setup worked perfectly. It’s like having a mentor by your side.
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Priya Shah,
Security Analyst
To Be a Network Engineer is the best self-study guide I’ve used. It’s clear, structured, and doesn’t overload you with jargon. It gave me both theory and practice, which made it easier to pass my certification exam and feel confident at work.
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Daniel Kim,
Network Support Specialist
With How To Become A Cisco Firewall Engineer, I finally understood ACLs, NAT, and VPNs on ASA. The book shows both CLI and ASDM, which helped me master real-world configurations. A must-have for anyone working in network security.
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Sophia Martinez,
Senior IT Security Engineer
Both books, To Be a Network Engineer and How To Become A Cisco Firewall Engineer, complement each other perfectly. One builds a strong networking base, and the other focuses on security. Together, they gave me the skills to advance my IT career quickly.
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James O’Connor,
Systems Administrator