问题驱动的网络安全线上线下实验教学探索

Exploration on Problem-Based Network Security Online and Offline Experiment Teaching

传统网络安全实验教学受到实验场地、设备的限制,且存在实验复杂、扩展性差、灵活性差、实验内容滞后于网络信息的发展等缺陷,而目前流行的云资源在线实验平台普遍存在资源不足、网络带宽受限,不能同时满足大规模线上实验的要求,实验场景固定,学生不能根据具体问题自主设计实验等问题.不利于培养学生的自主学习能力和实践创新能力.针对以上情况本文提出一种问题驱动的网络安全线上线下实验教学方法,线上引导学生根据实际问题采用虚拟仿真技术自主分析、设计实验,线下进行实验、发现问题,线上讨论、总结问题的实验教学方法.通过2个实际教学案例探讨问题驱动的网络安全线上线下实验教学方法的使用,在近5年的网络安全实验教学中推广使用这种实验教学方法,取得良好的教学效果.

The traditional network security experiment teaching is limited by the experimental site and equipment,and there are some defects such as complex experiment,poor expansibility,poor flexibility,and the experimental content lags behind the development of network information.Moreover,the current popular cloud resource online experiment platform generally has the disadvantages of insufficient resources and limited network bandwidth,which cannot meet the requirements of large-scale online experiment at the same time.The experimental scene is fixed,and students can′t design experiments according to specific problems.It is not conducive to the cultivation of the students′independent learning ability and practical innovation ability.In view of the above situation,this paper proposes a problem driven online and offline experimental teaching method for network security.Online students are guided to use virtual simulation technology to analyze and design experiments independently according to the actual problems.Offline experiments are carried out,problems are found,and online discussion and summary of problems are carried out.Through two practical teaching cases,this paper discusses the use of problem driven online and offline experimental teaching method of network security,which has been popularized in the past five years of network security experimental teaching and achieved good teaching results.