TY  - BOOK
AU  - Northcutt,Stephen
TI  - Inside network perimeter security: the definitive guide to firewalls, VPNs, routers and intrusion detection systems 
SN  - 0735712328
AV  - TK5105.59  .I67 2003
PY  - 2003///
CY  - Indianapolis, IN
PB  - New Riders
KW  - Computer networks
KW  - Security measures
ER  -