00454nam a2200157Ia 4500008004100000020001500041082001400056100002500070245003700095250000800132260004200140300002400182500001900206600002100225650005000246240925s9999    xx            000 0 und d  a812970207x  a005.8 CHE  aCheswick ,William R. 0aFirewalls and Internet Security   a2nd  aSingapore:bPearson educationc,2003.  a343p.bNAfOriginal  aIncludes Index  aComputer Science  aComputer science, information & general works