> But can anyone point me to info on how to crack something with no
> ports open or/and perhaps tell me how that's called (so I can
> search...). To me it seems impossible but I have a feeling that's a

Unfortunately I can't point you to any information regarding this, but I 
can offer a little input.  Cracking a machine with no services running 
would be VERY difficult indeed (I wouldn't say "impossible" though).  
Machines that are used as a packet filtering firewall fall into this 
category.  

What is more likely to happen than cracking the machine itself is 
finding a problem in the packet filtering rules that would allow a 
cracker unauthorized access to a host that is being protected by the 
firewall.  On rare occasions, there may even be a bug in the packet 
filtering code itself that could create the same problem.

Steve Bremer

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