<html><body><div style="color:#000; background-color:#fff; font-family:times new roman, new york, times, serif;font-size:12pt"><div>Hi all,</div><div><br></div><div> The online manual says that the '--usercat' means 'User category the rule applies to'; '--hostcat' has the similar explanation. But I still don't understand how that could be used in real life and when/where to use the options.</div><div><br></div><div> Could anyone please shed a light on this? Thanks a lot.</div><div><br></div><div>--David</div></div></body></html>