00454nam a2200157Ia 4500008004100000020001500041082001400056100001200070245005000082250000700132260003800139300002900177500001900206600002100225650005000246240925s9999    xx            000 0 und d  a8120324102  a005.8 NII  aN I I T 0aBasics of Network Security Firewalls and VPNs  aNA  aNew Delhi:bPrentice Hallc,2003.  axvi,718p.bNAfPhotocopy  aIncludes Index  aComputer Science  aComputer science, information & general works