A Novel Approach for Protecting Exposed Intranet From Intrusions

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Executive Summary

This paper proposes a novel approach for protecting groups of computers in an intranet from malicious attacks. The proposed scheme uses a distributed intrusion detection system as the primary source of security mechanism along with micro-firewalls at the host level to enable dynamic policy update for the intranet as and when the threat pattern changes. The authentication mechanism used for authenticating the hosts along with the communication mechanism used for communicating the policy update to the hosts is presented.

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