They do not have to scan you.  They can easily watch for inbound TCP 
packets with the SYN flag set.  These are connection requests.  It they 
watch for corresponding outbound responses from the target IP address to 
the original sender IP address, they will  know that you're running a 
server.  Now, whether they watch or not is a whole 'nother issue. Maybe 
they'll just assume its another Windows security bug.

So, the real question is, are you going to do it?  If you do, you _can_ get 
caught, and you take your medicine whether it's disconnection or something 
more dramatic (can anyone say "theft of cable service"?).  Just what are 
you willing to risk?

At 09:27 PM 10/14/2002 -0400, you wrote:
>(Not really a linux question, but any way...)
>
>As you may or may not know, I am trying to set up a web server. I am on 
>Cox residential interner service, and have read that they don't allow 
>servers to be run on their residential service. I tried contacting Cox 
>about this issue, but all they would say is that "cox does not allow 
>servers." After some research, I found that it will cost an extra $10 for 
>a slow 128k business connection so I could run a server. How ever, I know 
>someone who runs a server using the residential service using No-IP 
>Dynamic DNS software on port 8080. Is it true that they can detect if I am 
>using software like this, and will they cancil my account if they detect 
>me running that software? Do they just scan the ports that are blocked, or 
>do they scan all ports? What if I use a different port besides port 80?
>
>Thanks for any help,
>
>Steven



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