00383nam a2200145Ia 4500008004100000020001500041041001200056082001600068100001400084245006600098260002900164300000800193650002100201700001500222221030s9999    xx            000 0 und d  a8176567604  aEnglish  a105.23bSte  aM. Strebe 0aFirewalls 24 Seven ( DEPARTMENTAL )cby M. Strebe, C. Perkins  bBPB PubaNew Delhic2003  a544  aCSE Departmental  aC. Perkins