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What is the bit torent and how it works? BitTorrent Author: Unknown 2006-10-23
BitTorrent (BitTorrent) is a protocol or program to share files, where the parties (peers) some of them to share the file and contributed by a server called the tracker, organized by the communication between the parties.

Parties:
The number of connected people who share the file means either loading or uploading and they contain both seeders and leechers
Ie number of leechers + number of seeders
The Seeders are the parties who uploaded the entire file 100% and displayed the file for download to the other, and the more seeders each time the opportunity to download the file faster

leechers:
They are the parties who still carry the file and have not yet completed downloading it from 0 - 99%.

When you start downloading the file you download from both seeders and leechers, any of the parties who finished the file and the parties who still carry the file and is the principle of the contribution and participation, you think you will download the file of those who complete the file 100% You will download the file from both the seeders and the parts uploaded by the other leechers

The BitTorrent BitTorrent protocol splits the file to be downloaded for parts and is a thousand parts. For example, each leecher loads parts of the seeder and at the same time all the others. This distinguishes BitTorrent and BitTorrent from other programs and protocols such as kazza and imesh. Click on the seeders and the file will be downloaded from all sides alternatively, the file is shared between the parties

Torrent File:
What is a descriptive file that contains information such as the number of files to upload, size and the most important thing
Is the address of the tracer, who will coordinate between the parties, and the torrent file ends in .torrent and is recognized by torrent programs such as Azureus, BitComet and μTorrent ... ..etc, you are doing the file torrent easily and share this file with your friends, for example, by sending to E - mail or forums or on the

Tracer (tracker):
Is the address of the server, which handles the process of communication between the parties (peers) and collects information about these parties and he does not have a copy of the file and does not know what to download.

For example, when downloading a torrent file, the torrent file looks at the address of the tracker, for example, http://tracker.com/announce, and the tracker records your upload of the file and sends you the addresses of the other peers so that your program to contact them and in the case of private trolls and Which requires registration and determine the system Ratio first determine if you are entitled to download means searching whether you are registered in the site either by a specific code you get in the case of registration of the site and called the passkey (passkey)

When the torrent program on your machine connects to the tracker, Traker asks for the passkey. If you do not register from
Before downloading, Torrent will not send the passkey to the tracker, reject the download and send you a message saying that you are not registered with the "

After that, the logger logs on and sends you two parties' addresses to start communicating with them and sharing the file with them either by uploading or uploading. Over time, Tracer periodically communicates with the torrent program so that the statistics will take into account the amount of bandwidth you have downloaded (how much you upload and upload) ) And also renews the addresses of the parties (peers) in the case of change (ie if one of the parties called to upload the file or interrupted one). The rate of participation is calculated according to the quantity you have uploaded (upload) and the amount of download (file) means that you downloaded the amount of data equal to the amount of data upload (that you have raised the same amount The data for the file you downloaded) and whenever the number (eg 2.3) means that you contributed a high percentage in raising the file and ask you most of the sites upload the same amount of data that you uploaded until you achieve a fair system and ask you private sites and
Not public (public) sites to upload or share a torrent file