Northcutt, Stephen. <br/><br/>
Inside network perimeter security :   definitive guide to firewalls VPNs routers and intrusion detection systems / 
By Stephen Northcutt,...[et.al.] 
 - 1st 
 - New Delhi :  Pearson Education ,  2002. 
 - xxvii,678p. ;  PB  24.7 cm 
<br/><br/><label>ISBN: </label>8178087618 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Perimeter fundamentals<br/>Extending the perimeter<br/>Perimeter design
<br/><br/><label>Dewey Class. No.: </label>005.8  / NORS