Informatics Publishing Limited

Chandrasekar Ravi ¹, P. S. Ramesh ¹, N. Deepa ¹

Affiliations
1 School of Information Technology and Engineering,VIT University, Vellore, Tamil Nadu – 632 014, IN

Abstract

IP spoofing and Denial of Service (DoS) has become the most important security threat faced by the Internet community today. One of the effective methods of defending against the types of attack is to efficiently locate its source(s). To locate the packet source, a 16-bit hybrid trace back method has been proposed. It uses both the marking and logging methods along with efficient storage method to achieve zero false positive and zero false negative rates. Furthermore, the evaluation of the proposed method on the basis of efficiency of trace back shows that it performs much better than the existing method.

Keywords

Denial of Service (dos), Hash Table, IP Spoofing, IP Trace Back

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D. Geetha ¹, C. Rakkappan ¹, P. S. Ramesh ¹

Affiliations
1 Department of Physics, Annamalai University, Annamalainagar-608 002, Tamil Nadu, IN

Abstract

Ultrasonic velocity studies were undertaken on solutions of cellulose acetate phthalate in alkali metal hydroxides LiOH, NaOH and KOH and water mixture in the concentration range 0-2.5% by weight at frequency of 3 MHz in three different temperatures, 303 K, 313 K, 323 K. The observed non-linear increase in ultrasonic velocity with increase of cellulose acetate phthalate concentration is attributed to the polymer-ion interaction in higher electrolytes.

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