00434nam a2200169 a 450000500170000002000180001708200150003510000190005010000180006924500660008726000400015330000320019350000190022560000080024485600060025285600060025820251203112425.0  a9781931836012  a005.8bAND  aAndres, Steven  aKenyon, Brian  aSecurity sage's guide to hardening the network infrastructure  aRocklandbSyngress Publishingc2004  axxix,512p.bill.c24cm.bPB  aincludes index  bc_  f_  a_