Garfinkel, Simson <br/><br/>
Practical Unix and Internet Security 

 - 3rd ed. 
 - New Delhi  Shroff Publishers  2003 
 - xxix,956p.  24 cm. PB 
<br/><br/> Extensively Revised Over 250,000 Copies in Print 
<br/><br/><label>ISBN: </label>8173666830 
<br/><br/><label>Dewey Class. No.: </label>005.432  / GAR