00717nam a2200205Ia 4500008004100000020001800041022001500059040001300074082001400087100002100101245008500122260005700207300003200264500006300296650004200359650002200401650003400423650003400457700002000491191130s2006##################000#0#eng##  a9780131547315  a2005012530  aACLcACL  a005.8 TIB  aTibbs, Richard W  aFirewalls and VPNs : principles and practicescRichard W. Tibbs, Edward B. Oakes  aUpper Saddle River, NJbPearson/Prentice Hallcc2006  axxii, 442 p. : ill. ; 24 cm  aIncludes bibliographical references (p. 427-433) and index  aComputer networks - Security measures  aComputer security  aExtranets (Computer networks)  aFirewalls (Computer security)  aOakes, Edward B