3Diego Zamboni,E H Spafford.A Prototype for a Distributed Intrusion Detection System[R].TR98---06,Department of Computer Sciences,Purdue University, COAST, 1998.
4D B Chapman,E D Zwicky.Buliding Internet Firewalls[M].O'Reilly & Associates : Sebastopol, CA, 1995.
5H Debar,M Dacier,A Wespi.Towards a taxonomy of Intrusion- detection Systems[J].Computer Networks, 1999 ; 31 (8) : 805-822.
6D Anderson ,T Frivold,A Valdes.Next-generation Intrusion-Detection Expert System(NIDES):A Summary[M].SRI-CSL-95-07,SRI International,Menlo Park ,CA, 1995-05.
