TY  - BOOK
AU  - Vacca, John R.
AU  - Ellis, Scott R.
TI  - Firewalls: : jumpstart for network and systems administrators
SN  - 9788131203408
U1  - 005.8 
CY  - Burigton
KW  - Computer programming
KW  - Programs
KW  - Data
KW  - Data security
KW  - Computer networks
KW  - Network security
KW  - Firewalls
ER  -