Denial of Service Prevention through Logical Fibering

We propose a logic-based method to protect network nodes or web sites from Denial of Service (DoS) attacks. This method is based upon Logical Fibering. Queries to the node are stored inside the fiber and decisions whether a new query should be accepted or not are taken on an empirical basis. The respective base space consists of the incoming information whereas the fiber itself describes the universe of necessary values to treat the connection. At the end of the query processing a result of true or false for every request is reached. Apart from this specific process, a mediation scheme is initiated automatically by means of Data Mining methods. This enables to optimize the Logical Fibering structure and to assess possible similarities among attacks. The resulting information could be used by network or web managers to analyze the DoS threats to their system. This paper proposes an overview of the methodology being designed.