National Institute of Information Technology <br/><br/>
Basics of network security, firewalls, and VPNs 

 - Prentice-Hall Of India Private Limited, New Delhi  2003 
 - x,294 
<br/><br/><label>ISBN: </label>81-203-2410-2 
<br/><br/><label>Dewey Class. No.: </label>001.5436 N.I.I.T.