Jacobson, Douglas Introduction to network security/ Douglas Jacobson - Boca Raton: CRC Press, c2009. - xxi,478 pages: illustrations; 24 cm. - Chapman and Hall/CRC computer and information science series) . Includes appendices and index. ISBN: 978-1-58488-543-6 Subjects--Topical Terms: Computer networks--Security measuresComputer security Dewey Class. No.: DC 005.8 / J15i