Thisbookprovidesadetailedintroductiontothemaintechnologiesandapplicationareasofmodernnetworksecurity.Itcoversmultipletopicssuchasauthentication,authorization,disasterrecoveryplanning, datamonitoringandanalysis,operatingsystemandhostsecurity,helpingreadersunderstandhowtosafeguardnetworksecuritythroughvarioustechnicalmeans.Thecontentrangesfrombasicconceptstospecifictechnicalimplementations,fromtheoreticalknowledgetopracticaloperations,compr

With the rapid development of information technology, network security has becomea crucial infrastructure across various industries. This textbook provides comprehensivetheoretical and practical guidance for network security courses, aiming to equip studentsand professionals with the ability to handle various network security threats and lay a solidfoundation for their future career development.
The writing of this book is based on current network security teaching standards andthe latest technological developments. The content includes both foundational theoreticalknowledge and practical operational skills, striving to help readers grasp core concepts andpractical techniques in network security through systematic teaching materials. Moreover, thebook emphasizes case-based teaching, with real-world case analysis and operational exercises,enabling readers to apply the knowledge they have learned in real-world environments.

This book has the following features:


Case-driven: Through numerous real-world cases and operational steps, it helps readersunderstand and master network security technologies in practice.

Comprehensive coverage: It covers everything from basic concepts to advancedapplications, providing detailed content to help readers fully understand and master networksecurity technologies.
Cutting-edge technology: It introduces the latest network security technologies and trends, ensuring the content is timely and advanced.
This book is structured as a workbook-style textbook, divided into five major sections,which respectively cover overview of security and information security, operating systemand host security, network security foundation, encryption decryption and application, and fundamentals of security operations and analysis. Each section is self-contained and subdivided into several projects and multiple tasks, with content progressing from basic to advanced an tightly integrating theory with practice. This allows readers to deeply understand theoretical principles and effectively master application and problem analysis skills through project-based learning.
The authors of this book have extensive teaching experience and practical knowledge.Centered around the HCIA-Security certification, it focuses on equipping readers with basic knowledge and related technologies for small and medium-sized network information security(Huawei firewall technology, encryption and decryption technology, information security system operation and maintenance, etc.), enabling them to assist in designing, deploying, and maintaining network security architectures for small and medium-sized enterprises, thereby ensuring the security of networks and applications for such enterprises.
In selecting, organizing, and designing the teaching methods for the content, this textbook attempts some innovative reforms. We warmly welcome and hope that readers will provide
feedback and suggestions for this textbook.
Liu Cheng, Yang Yang are the chief editors of this book, Guan Jian, Sui Weiyue, Li Su,Zhang Yunheng, Zhang Liang, Yu Yang, Ren Yanhui are the deputy editors of this book, Shen Ting, Han Meiqi, Wang Zhanyun are the editors. Due to the limited knowledge and experience of the editor, there are inevitably some omissions and deficiencies in this book, and we sincerely hope that readers can criticize and correct them.
Author
October, 2024

Section1Overviewofsecurityandinformationsecurity................................1Project1Understandthebasicconceptsofinformationsecurity.................2Task1.1Understandtheconceptsofinformationandinformationsecurity........2Subtask1.1.1Understandthedefinitionofinformationandinformationsecurity..................................................................2Subtask1.1.2Grasptheattributesofsecurity..................................................3

刘琤,本科毕业于天津工业大学计算机科学与技术专业，研究生毕业于英国普利茅斯大学国际物流专业，研究生学历，高级工程师，现任天津电子信息职业技术学院副院长。主要研究方向：计算机工程，管理学。从事职业教育工作十余年，具有多年的教育教学管理和实践经验。科学研究经验丰富，主持天津市教育工作重点调研课题1项，作为主要参加人参与天津市教育科学“十三五”规划课题1项，作为第一参加人参与了天津市高职高专教育教学改革研究项目，天津市高等职业技术教育研究会课题等多项科学研究工作，副主编、参编教材多本，发表学术论文多篇。杨阳，毕业于天津师范大学电子与电工技术专业，大学本科学历，教授，现任天津电子信息职业技术学院计算机软件技术系系主任。主要研究方向：计算机、信息工程。参与成果资源转化具体实施工作，主持制定试点专业课程体系，课程标准。参与中国装备输出，标准输出的具体实施工作。担任第44届世界技能大赛信息网络布线项目中国教练组组长、指导中国选手获得金牌。2014年获得第十届“振兴杯”全国青年职业技能大赛网络管理员赛项第四名。2014年获得全国院校信息化教学大赛三等奖。2014年获全国技术能手荣誉称号。2014年获天津市五一劳动奖章。2

本书不仅深入剖析了信息安全的理论基础，更紧密结合了实际应用场景，帮助读者理解并掌握网络安全的核心技术和最佳实践。通过本书的学习，读者能够深入了解网络安全的重要性，掌握网络安全的基本知识和技能，为构建安全、可靠的网络环境提供有力支持。