Bejtlich, Richard. <br/><br/>
The tao of netwok secutity monitoring :  beyound intrusion detection / 

 - USA,  Addison Wesley,  c2005. 
 - xxxiv, 789p. ;  ill. ;  23 cm. 
<br/><br/><label>ISBN: </label>0321246772 
<br/><br/><label>Dewey Class. No.: </label>005.8