00632nam a22001577a 4500020002100000082001500021100000900036245005100045260003600096300003100132500002000163650013800183942000700321952013300328999001300461  a8120324102 (pbk)  a004.6bBAS  aNIIT  aBasics of network security, firewalls and VPNs  aNew DelhibPrentice-Hall c2003  ax, 294 p.b: ill.c; 23 cm  aIncludes index.  aComputer scienceaNetwork securityvComputer securityvFirewallsvNetwork firewallvVPNvOperating systemsvFirewall ArchitecturevFC  cBK  00104070aRIUbRIUd2012-04-17ePurchased: Saeed Book Bankg293.08l0o004.6 BASp4578r2022-03-30 00:00:00t1w2019-02-21yBK  c462d462