Mann, Scott <br/><br/>
Linux system security: an administrator's guide to open source security tools 

 - 2nd ed. 
 - New Delhi  Pearson Education  2003 
 - xxxvi, 857p. 
<br/><br/>   
<br/><br/><label>ISBN: </label>81-7808-890-8 
<br/><br/><label>Subjects--Index Terms: </label>Security- Linux  Network security  Computer science  Linux security