The best damn firewall book period/  
Thorsten Behrens ... [et al.]. 
 - 2nd ed. 
 - Burlington, MA:   Syngress Publishing,   2007. 
 - xl, 1123p.:   ill. 
<br/><br/>Includes index 
<br/><br/><label>ISBN: </label>9781597492188 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Firewalls (Computer security)
<br/><br/><label>LC Class. No.: </label>TK 5105.59 BES 2007