Daniel Bolgheroni wrote:
[ ... ]
>> Maybe define "NINJA" in your /etc/hosts. (I don't know why smbclient
>> is different; I think it may use a NetBIOS name, but shlight uses
>> regular DNS name.)
> 
> But what can I do if I don't know the IP of these machines?

I believe nmbd (which is part of Samba) ought to be able to help with regard 
to resolving NetBIOS names; are you running it?  Otherwise, it would be worth 
your while getting DNS working so that you can lookup IP addresses by name.

-- 
-Chuck