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One of topical tasks of policy-based security management is checking that the security policy stated in organization corresponds to its implementation in the computer network. The paper considers an approach to proactive monitoring of security policy performance and security mechanisms functioning. This approach is based on different strategies of automatic imitation of possible users' actions in...
Under intrusion or abnormal attack, how to autonomously supply service, without being degraded, to users is the ultimate goal of network security technology. Based on Martingale Difference Approximation principle, a System Service Optimization Model (MDAO) is proposed. According to the prior self optimizing knowledge and parameter information of inner environment, MDAO searches the convergence trend...
To protect SIP communication networks from attacks, especially flooding attacks like denial-of-service or message spam, intrusion detection systems (IDS) are deployed at the ingress point of the network to filter potential malicious traffic. A key issue of IDS performance is the operation of its firewall to block malicious user requests. Depending on the complexity of the firewall ruleset, filtering...
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