A Bittorrent magnet link contains all the information needed to start downloading the files from peers directly. It is a server-less way of retrieving the right information to start downloading the requested files. A magnet link therefor is theoretically all that is needed to download files from other peers in the Bittorrent network.
Magnet links can be distributed by email, messaging and other forms of communication but are most often found on the torrent sites that usually offer both torrent and magnet links to their users. The full magnet link would look like this: magnet:? Detailed information about additional Magnet Link parameters are listed on Wikipedia. This speeds up the process of finding the first peers.
The main advantage for Bittorrent indexers is that they do not have to store the torrents on their servers anymore which could be beneficial for them in several ways. It could reduce the pressure from the media creation industry and reduce hardware infrastructure expenses thanks to less tracking and downloading.
The end users on the other hand benefit from Magnet Links as well. All they need is the link to start downloading the files which makes them independent from torrent indexers. It also allows them to distribute the information more easily. Torrent indexers remain on the other hand the main source of information for new files that are available for download.
A tracker less environment should raise a question of identification. How can a download be initiated ff there is no tracker to inform the Bittorrent user about other users who download and seed the file?
The answer is DHT, Distributed hash tables. DHT is enabled by default in popular clients such as uTorrent or Vuze. Without going into to much detail, the hash of the magnet link is used to find peers using DHT. Both torrent file and Magnet links perform the same task, that is, download files via BitTorrent. Magnet links contain hashes of the files to be downloaded and location of where these can be downloaded from.
From the Wikipedia ,. Magnet links consist of a series of one or more parameters, the order of which is not significant, formatted in the same way as the query string on the end of many HTTP URLs.
The most common parameter is "xt", meaning "exact topic", which is generally a URN formed from the content hash of a particular file, e.
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Wikipedia mentions a required "availability search" to find peers and the actual file. Hence why they suggest Bittorent. Hope that helped. You must seed back or upload or share with these leechers as you download and even after your download is complete [atleast for a while]. Sharing is the concept here. Another advantage of bittorrent is that each part of the file you recieved is verified via SHA or MD5 so that you can be sure your iso is not corrupted.
But be sure to download. It explains how BitTorrent works, how to setup the client, how to troubleshoot download issues and more.
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