Description: Network security essentials :

Main Author:	Stallings, William
Published:	Upper Saddle River, N. J.: Pearson Education, Inc., 2003.
Edition:	2nd ed.
Subjects:	Computer networks -- > Security measures Computer security

Physical Description:	xv, 409 p.: ill.; 24 cm.
Bibliography:	Includes bibliographical references and index
ISBN:	9780130351289 0130351288 (pbk.)