NIIT <br/><br/>
Basics of network security,firewalls and VPNs 

 - New Delhi  Prentice Hall   2003 
 - 294 
<br/><br/><label>ISBN: </label>8120324102 
<br/><br/><label>Subjects--Topical Terms: </label><br/>NETWORK SECURITY
<br/><br/><label>Dewey Class. No.: </label>005.8 NII/B