TY  - BOOK
AU  - Tibbs,Richard W.
AU  - Oakes,Edward B.
TI  - Firewalls and VPNs: principles and practices 
SN  - 0131547313
PY  - 2006///
CY  - Upper Saddle River, N.J
PB  - Pearson Prentice Hall
KW  - Computer security
KW  - Computer networks
KW  - Security measures
KW  - Firewalls (Computer security)
KW  - Extranets (Computer networks)
ER  -