Re: Help: Torrent dowload question
- From: "PlowBoy" <DoNotreply@xxxxxxxxxxx>
- Date: Wed, 15 Feb 2006 12:31:43 -0600
Another problem you as a internet user will find, is that the ISP's are
curtailing this P2P and torrent sharing by killing them upstream from your
modem/router... if I can find the link, someone posted this info I read, it
luckily for me, was not all COX or SBC cable DSL regions. there are
inherent risks with many P2P things because you find a file called for
example, motocross.mov, in reality is a renamed virus.exe which is kinda
like the problem with attachemnts in email for a long time, where they send
a supposed pic of some naked chick, that tennis star, but when users opened
what they thought was a harmless pic, was actually and EXE with a nasty worm
in it... some providers are blocking this in the name of internet safety,
and of course RIAA and Copyright protection...
Hop-Frog enlightened us with:
"DarrylR" <darrylr@xxxxxxxxxx> wrote in
news:moWdnTp3b6X7M2_eRVn-sg@xxxxxxxxxxx:
I need some general advice on downloading torrent files.
Then the discussion should be in alt.bittorrent. I've set the
Follow-up To: header.
However, my downloads never actually
retrieve any content; after letting one run for 12 hours yesterday,
it was still at 0%, and the log contained only "unexpected end of
file" and "connection reset by peer" error messages.
I'd guess from the information you give here and elsewhere in the post
that the particular torrents you're trying to download require
logging in to the tracking website. Many of the torrents listed on
Mininova are actually tracked elsewhere, and some sites require that
your IP also be logged in to their website in order to join the
swarm. This is to ensure that everyone who downloads also uploads.
Try entering the server name listed in the torrent Announce URL
(without the :6500/announce) into your web browser, and it will
probably redirect to a website with more information about the
torrents and how to get them.
The Azureus documenation suggests that you only
need to open a single port (hard to believe, but if anyone can tell
me the exact port, I'll be greatful).
Correct. Azureus only needs one "listening port" opened in the
firewall or forwarded in the router. Most modern BitTorrent clients
require only one port; older clients need(-ed) one port for each
active torrent.
BitTorrent clients make three kinds of connections: (1) outgoing HTTP
connections to the tracker. These are the same sorts of
communications your web browser uses, and are made on the port
specified in the Announce URL. (2) outgoing BT connections to peers.
These are made on random ports as needed. You don't need to
configure either of these types of connections in your
firewall/router; since they're outgoing, just give the application
permission to access the internet. (With Azureus, that's javaw.exe,
not Azureus.exe.) (3) incoming connections on the "listen port."
These are connections initiated by other peers. *They* "dial" *you*.
These connections need to be configured in the firewall, because the
system has no way of knowing which application they're destined for
until the connection is accepted. You choose exactly which port in
the BT client's configuration; any port number will do, but a high
number in the 54000's or so is recommended because those ports are
not assigned to other internet applications.
Their guide mentions 6881, but I
discovered by googling that many ports in th 6800 range are blocked
by ISPs because of their usage by P2P programs.
Correct. By some estimates, BT traffic now makes up 80% of all
internet traffic. (Seems a bit high to me, but who knows?) All BT
clients will default to using 6881 as their listen port--that was
just a quasi-random number chosen by the original developer--but that
should be changed A.S.A.P.
Although I don't have any files to serve up or seed (yet), I also
created a server publishing rule that forwards ports 6880 and 50361
so that my machine can serve content. Azureus verified that 50361 is
forwarded correctly, but it does have a warning about DHT being
firewalled.
Azureus uses a "Distributed Hash Table," a system that makes the
dedicated tracking server (in the Announce URL) unnecessary. It
trades tracking information with other DHT clients on the UDP port
with the same number as the TCP listen port. You'll usually need to
create two separate forward/exception rules for the same number: one
TCP, one UDP.
The URL of one of the torrents that I'm trying to download includes
port 6500 (http://tracker.<snipped>:6500/announce). Would I need to
open port 6500 to access this torrent?
This, as I've alluded to, is the Announce URL. When the torrent is
first loaded, the client creates an outbound HTTP connection to
"tracker. <snipped>" on TCP port 6500, and requests the list of
active IPs. The tracker tells the client who's in the swarm, and
then the client contacts each of them, trying to establish a
connection and get some data. Periodically, the client goes back to
that tracker to report some statistics and grab newly joined IPs.
Since this is only outbound traffic, you don't need to open 6500.
Most trackers will use different ports, anyway. The default is 6969,
but that has been used by some worms, so it is occassionally blocked
by web hosters.
Any advice will be greatly appreciated.
If you still have questions, be sure to ask in alt.bittorrent. There
are many of us over there who're more than willing to help.
--
I am simply Hop-Frog, the jester--and this is my last jest.
.
- Prev by Date: Re: David Bailey on a Motorcycle after 19 years!!!!!!!!!!!!!!!!
- Next by Date: Re: Camcorderless helmet cam.
- Previous by thread: WHere are all the links to pics of the new 30 second gal?
- Next by thread: the last time
- Index(es):
Relevant Pages
|
|
