Network Security: A Comprehensive Guide For Beginners And Advanced Learners
Understand the threats. Learn the defenses. Build a stronger foundation in Network Security.
Modern organizations depend on computer networks for communication, business operations, cloud services, applications, and data exchange. With this growing connectivity comes an equally important challenge: protecting networks from unauthorized access, attacks, vulnerabilities, and security incidents.
Network Security: A Comprehensive Guide for Beginners and Advanced Learners provides a structured learning journey for students and aspiring security professionals who want to understand how modern networks are protected.
The book begins with the fundamentals of networking and network security, covering network topologies, OSI and TCP/IP models, network devices, IP addressing, subnetting, protocols, and ports. It then moves into common cyber threats and vulnerabilities, including malware, phishing, social engineering, DoS and DDoS attacks, Man-in-the-Middle attacks, weak authentication, and software vulnerabilities.
Readers will learn important security principles such as the CIA Triad, AAA, Defense-in-Depth, Least Privilege, and Risk Management, followed by an introduction to cryptography, encryption, digital signatures, certificates, TLS, IPsec, and PKI.
The book also explores firewalls, IDS, IPS, SIEM, VPNs, wireless security, Network Access Control, web application security, HTTPS, secure development practices, incident response, digital forensics concepts, disaster recovery, and business continuity.
The final chapters look toward the future, introducing Zero Trust, Next-Generation Firewalls, AI and Machine Learning in cybersecurity, Cloud Security, and IoT Security.
For students, the book provides a strong academic foundation. For aspiring professionals, it introduces important technologies, responsibilities, career paths, and security practices.
The goal is not simply to learn how attacks occur, but to understand how responsible security professionals identify risks, protect systems, respond to incidents, and continuously improve security.
Learn the fundamentals. Understand the risks. Think like a security professional.
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About
About the Book
Network Security: A Comprehensive Guide for Beginners and Advanced Learners is a structured and practical introduction to the principles, technologies, threats, tools, and practices used to protect modern computer networks and digital infrastructure.
As organizations increasingly depend on connected systems, cloud services, wireless networks, web applications, and IoT devices, understanding network security has become essential for students and technology professionals. This book provides a progressive learning path that begins with networking fundamentals and gradually introduces advanced security concepts.
The book covers network security fundamentals, networking models, IP addressing, subnetting, protocols and ports, common cyber threats, vulnerabilities, security principles, cryptography, firewalls, IDS and IPS, SIEM, VPNs, wireless security, Network Access Control, web application security, incident response, and disaster recovery.
Readers will also explore emerging areas such as Zero Trust Architecture, Next-Generation Firewalls, AI and Machine Learning in security, cloud security, and IoT security.
The later chapters focus on professional development, ethical hacking and penetration testing concepts, career opportunities, security policies, employee awareness, vulnerability assessments, patch management, and secure configuration practices.
Appendices provide an overview of important network security tools and resources along with a useful glossary of common terminology and acronyms.
Designed for undergraduate and postgraduate learners, this book can also serve as a reference for aspiring cybersecurity professionals, networking students, educators, and technology enthusiasts who want to develop a strong foundation in network security.
The emphasis throughout the book is on understanding security concepts, responsible practices, and the importance of protecting systems, networks, users, and data.
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Author
About the Author
Anshuman Kumar Mishra, M.Tech (Computer Science) Assistant Professor, Doranda College, Ranchi University
Prolific Author of 50+ Books on AI, Machine Learning & Computer Science | 20+ Years Experience
Anshuman Kumar Mishra is a dedicated educator, researcher, and highly prolific author with over 20 years of experience in Computer Science and Information Technology. Holding an M.Tech in Computer Science from BIT Mesra, he brings a rare combination of academic depth and practical teaching expertise.
Currently serving as Assistant Professor at Doranda College under Ranchi University, he has mentored thousands of students, helping them build strong foundations in programming, data science, and artificial intelligence. His student-centric teaching style emphasizes conceptual clarity, hands-on practice, and real-world application.
Anshuman is a prolific author with more than 50 books published across a wide spectrum of computer science and emerging technology domains. From foundational programming languages to advanced topics in Artificial Intelligence, Machine Learning, Reinforcement Learning, Decision Theory, and Computer Vision — his books are widely appreciated by students, educators, and professionals for their clear explanations, strong theoretical foundation, and practical approach.
His extensive body of work reflects his deep commitment to making complex subjects accessible and meaningful for learners at all levels. He is particularly recognized for creating well-structured learning paths that help readers progress from beginner to advanced levels with confidence.
Driven by the mission to democratize quality technical education, Anshuman continues to write and update books that bridge the gap between academic theory and industry practice.
When not teaching or writing, he actively follows and explores new developments in AI, Quantum Machine Learning, and Ethical Intelligence systems.
Contents
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