[NTLUG:Discuss] 3 questions

[Wayne Dahl]

I have 2 questions.  

1.  I'm running RH 8.0 and Canna is running on this machine.  When I
look at services, Canna is described as Canna Japanese Conversion
Engine.  Is there some reason it would be running on this machine and
would it be ok to shut it down forever?  I have no need to convert
anything from Japanese to anything else.  I know I'm showing my
ignorance here, but is there some compelling reason it should be
running?  If not, I'll shut it off.

2.  Since I read an article on the Linux Journal website about a cool
utility used by IPTables called Tarpit, I've been intrigued about using
it.  I just checked the logs on my Smoothwall firewall and found a whole
BUNCH of port 445 scans from various and sundry sources...not to mention
a couple of full port scans from one particular source.  This is
motivating me to attempt to use Tarpit to discourage scans to my
particular machine.  Has anyone else here used it and if so, what is
your experience with it?  Can anyone recommend a good book on
configuring IP tables/IP chains?

3.  Another service I see running is ISDN.  I don't have ISDN, have no
ISDN devices (that I'm aware of) and see no reason for that to be
running either.  Will it be ok to shut that off and leave it off?

Thanks in advance,

-- 
Wayne Dahl
Registered Linux User # 347549
No electrons were abused in any way by any Micro$oft 
product in the composition of this e-mail.