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Hello,
FWIW: *any* program that has open listening ports is potentially
vulnerable to attack from the internet. So BT is too.
See for example:
http://torrentfreak.com/bittorrent-clients-vulnerable-to-remote-dos-attack-080117/
Google for "vulnerable bittorrent"
results in 110000 hits.
You better have hardware router with strong firewall and good set of pocket filtering rules,
or better yet - separate computer without your trading software (and potentially passwords and
other sensitive data) on it .
Best regards,
Tomasz Janeczko
amibroker.com
----- Original Message -----
From: "Michael.S.G." <OzFalconAB@xxxxxxxx>
To: <amibroker@xxxxxxxxxxxxxxx>
Sent: Friday, February 22, 2008 5:13 AM
Subject: Re: [amibroker] OT: Question on Torrent Security
> Hi Ken,
> Both Rik and Prashanth are correct. I'll Give some more info.
>
> Use of BitTorrent is safe, Provided you are running the usual firewall
> protection, A well known torrent client and downloading Legal torrent
> files (eg open office etc.).
> * The torrent file should be downloaded from the originating web site
> eg. http://distribution.openoffice.org/p2p/
> * Illegal software (MS Office etc) should not be downloaded and may
> contain Trojans etc.
> If you computer is directly connected to the net, Ensure your software
> firewall is allowing the port that BitTorrent is using to pass.
> If you are connected behind a hardware firewall/router, Ensure that your
> firewall/router forwards the port to your computers internal net address.
> The forwarding or passing of the BitTorrent port will generally allow
> more peers to connect and give you a faster Download and Sharing ratio.
> Some ISP's throttle the standard bitTorrent ports. You can generally
> overcome this by changing the default port used by the bitTorrent
> program (Highly suggested).
>
> The seeding/uploading of torrents WILL slow your net connection down,
> Mostly due to the upload limits most ISP impose on home net connections.
> However you can set bitTorrent programs to seed/upload at specific
> speeds. ie if your total upload speed is 20kb/sec, Set your upload speed
> to say 10kb/sec. You should try to seed/upload at least to a 1:1
> upload/download ratio. ie people help you download and you should
> reciprocate by at least uploading as much as you download. Some
> bitTorrent clients also have the ability to operate at set times, So you
> can just do the transfers during the night when no other critical
> activity is required.
>
> I tend to download fairly large torrents ie Linux Distributions, Open
> office etc etc. And I find the Azures client to be quite good. (And use
> the "Speed Scheduler" plugin to limit transfers to the night/off peak
> xfer times only.) Also, I will usually quit the client after I have
> download/upload ratio of at least 1:1, Mainly to conserve memory, CPU
> cycles and *monthly transfer limits*
> *As an extra note, Some ISP's now consider "uploads" to be part of your
> monthly transfer allowance. I Believe OptusNet (Australia) now does this.
>
> Hope this helps,
> Michael.S.G.
>
>
>
>
>
> Ken Close wrote:
>>
>> I have asked this question various places and have gotten no answers.
>> Google searches do not reveal anything. Perhaps someone here knows the
>> answer--if there is an answer.
>>
>> I want to know if the use of Torrent (BitTorrent, UTorrent, etc)
>> clients exposes one to a severe security risk. As I understand the
>> newbie explanations I have read, torrent clients break up a requested
>> torrent file into "pieces" and various peers (other computers) send
>> you pieces of the requested file. Your torrent program collects and
>> "assembles" the pieces and you have the completed file. In turn, you
>> have to leave your computer "open" to others so the torrent program
>> can share "pieces" of the file on your computer with others.
>>
>> Thus my question: with your computer being "open" to all those using
>> torrent clients, are you at risk of a hack attack on the other private
>> data on your computer? A related question is: can you be more
>> (totally?) secure if you devote one computer on your home network to
>> torrent collection and do not have sharing on for any of the other
>> computers on your network--sort of isolating the torrent-collecting
>> computer?
>>
>> I am interested in all of this because more and more legitimate, legal
>> material is being shared over the net via torrent downloads. I would
>> like to avail myself of some of this legal content but do not yet
>> understand the risks.
>>
>> Any comments?
>>
>> Thanks,
>> Ken
>>
>
>
>
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