Nowadays, to survey and guarantee the security policy in networks, the administrator uses different network security components, such as firewalls and intrusion detection systems (IDS). For a perfect interoperability between these components in the network, these latter must be configured properly to avoid misconfiguration anomalies between them. However, there are a set of anomalies between alerting rules in the IDS and filtering rules in firewalls, that degrade the network security policy. In this paper, we will present a mobile agent based architecture to detect misconfigurations between these distributed components and generate a new set of rules free of errors. A case study will illustrate the effectiveness of our approach.
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