基于BSG的拟态Web服务器调度策略研究

Research on scheduling strategy of mimic Web server based on BSG

拟态Web服务器系统是基于拟态防御模型构建的内生安全防御系统。为了提升服务器的安全性和执行体资源的利用率,在具体的攻击场景下利用Bayesian-Stackelberg博弈方法,结合异构执行体之间的差异性,构建出基于攻防博弈的执行体调度模型,设计出场景化的最优调度策略。最后通过一个实例验证了模型和策略的可行性和有效性,相比于随机均匀调度策略安全性有明显提升,相较于最大差异性调度策略能有效提升资源利用率和动态随机性。

The mimic Web server system is an endogenous security defense system based on the mimic defense model.In order to improve the security of the server and the utilization of the execution resources,the Bayesian-Stackelberg game model and the difference of heterogeneous actuators was combined,constructs an actuator scheduling model based on offensive and defensive games and design a scene-based scheduling strategy in the specific attack scenario.Finally,an example is given to verify the feasibility and effectiveness of the model and strategy.Compared with the random uniform scheduling strategy,the security is significantly improved,and compared with the maximum differential scheduling strategy,the resource utilization,dynamic and randomness can be effectively improved.