This paper presents a new infrastructure based on a novel meta-policy approach. This solution allows to deploy a MAC kernel within a distributed system. It is a completely decentralized solution that has strong fault tolerance properties. Despite a local control of the updates, each local policy satisfies global security properties. Our IDS approach add new security properties. It prevents any accidental or malicious update of the local policies. Moreover, the collaboration between the meta-policy and our IDS system enables to detect illegal sequences of legal operations.