Im using a wireless conection without security in my neighbourhood. I have no idea who provides it, what kind of rooter it is, all I know is that the connection is good and I never had any trouble with it. My question is, how can I find wich port are open to use bit torrent programs such as Utorrent or Emule. I was wondering if a Port Sniffer could help me... Thank you, JP snipped-for-privacy@gmail.com
If you start a torrent with your neighbor's wireless, though he may not know you are using it now, he doubtless will when his connection slows to a crawl.
Leaving aside the ethical, moral, and legal aspects of using someone's AP without permission, you are going to suck up all their bandwidth with BitTorrent, and make their lives miserable. Please don't.
It is not a good idea to "freeload" on someone else's network without their permission. As for going to make use of a bit torrent facility across it, you are really asking for trouble when they find out that their connection performance drops. They may well be paying for the amount of data being used from their ISP and your "freeloading" is tantamount to theft.
You can use one of the internet based security scanners to find holes in the firewall. However, the effort will surely be futile because none of the potential list of open IP ports will point to your PC's IP address. At worst, the owner of the router has setup some incoming ports for BitTorrent, but pointed them at his computer, not yours. Nice try.
Since the system is totally insecure, and since you don't seem too interested in asking permission before using someone elses system, you might wanna try just connecting to the web server in your neighbors router and configuring it for your benifit. Beside not having any wireless security, the router probably is running with defaults, which probably includes the default password. You should be able to identify the maker and model by the initial login screen.
However, if you still have something left of a concience, and actually want to make an attempt to ask the owner for permission, you can use a laptop as a crude direction finder by blocking most of the signal with some aluminum flashing as a reflector. It's not the best direction finder, but it will work well enough. For suburban neighborhoods, I can usually locate the house by just walking down the road with my laptop and watching the signal strength.
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