Hardening network security / 
John Mallery ... [and others]. 
 - xxx, 593 pages :  illustrations ;  23 cm. 
<br/><br/><label>ISBN: </label>0072257032 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Computer networks --Security measures.
<br/><br/><label>LC Class. No.: </label>TK5105.59   / .H37 2005