ANALYTICAL MODEL FOR ADMISSION CONTROL OF TCP SYN FLOODDING
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Abstract
In this paper we make an attempt to propose an analytical model for Admission control of TCP SYN flooding. Admission control is one of the ways to protect the web server from SYN Flooding. An admission control strategy is introduced based on Erlang loss queuing model studied by Daniel Boteanu(2007). The proposed strategy deals with whether a connection request (malicious/legitimate) to  enter into the Backlog Queue or not. We propose a control function is for accepting/rejecting a new TCP connection that arrived at the Backlog Queue. We show that LCAR (legitimate Connections Acceptance Ratio) is an important security metric to analyze SYN flood attacks. The results and the conclusions are presented.
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