Graham, Elizabeth S., <br/><br/>
Practical network security monitoring :  using free software / 
Elizabeth S. Graham 
 - Second Edition 
 - 267 pages :  illustrations ;  23 cm. 
<br/><br/>Includes bibliographical references 
<br/><br/><label>ISBN: </label>9798393237394 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Free computer software