Content of the material
- What is Torrent Tracker
- How to Improve Torrenting Speed
- Increasing your Internet Speed
- Selecting a Healthy Torrent
- Use Port Forwarding
- Is It Illegal to Download Torrent Files?
- VPNs and Torrenting
- Working Torrent Tracker List
- How Does Torrenting Work?
- Torrent Tracker List Updated On 1 March 2022
- 📁 Whats in a Torrent Descriptor File, Anyway?#
- 🎐 The Choking Algorithm#
What is Torrent Tracker
A torrent tracker is a server that tracks torrent users and keeps the information such as the number of seeders and leechers, the torrent filesize and number of downloads. Torrent is a peer-to-peer process. There is no central server for torrents. So how users find each other? Using trackers, simple. Torrent works by creating a small chunk of the file and sharing and distributing this file among the “swarm “.
When you put a .torrent file on your torrent client like uTorrent, Vuze, Bittorrent, qTorrent etc. it simply uses these torrent trackers to find the peers. Suppose, there are 900 seeders seeding a torrent and 800 leechers are downloading the torrent. Now the job of a tracker is to find who are interested in downloading the particular torrent file and when any user wants to download a torrent file, the torrent client then sends this request to one of the trackers and asks the tracker to register this user’s IP and port. Tracker then accepts the request and it tries to find the other user who also showed their interest by either seeding the torrent or currently downloading the torrent. When the torrent client finds the all these information from the torrent tracker then a direct connection is made among all of the peers.
As you can see, a torrent tracker knows your IP address and port. Now, there are some controversy running regarding tracker. Hollywood studios employ special torrent hunting team of professionals who normally can run uTorrent app and after it get connected with other peers it can easily note down the IP addresses. Note that, most of the Public trackers can be used like this to hunt down torrent downloader or uploader. Some Copyright Protection agencies even run honeypot tracker so that they can track down torrent downloaders. So I urge all Torrent users to use a VPN for Torrenting. When you are connected with a VPN, your real IP address is masked and your online activity is hidden from all ISPs, Copyright trolls, Govt. Agencies. To protect your privacy and to avoid copyright infringement notice you must turn on Torrent VPN. During our extensive torrent downloading test we found that Private Internet Access gives amazing download speed as all of their server is optimized specially for torrenting and P2P download.
How to Improve Torrenting Speed
You may increase your torrenting speed through the following:
Increasing your Internet Speed
A stable internet connection can help you handle the bandwidth when torrenting. To know more about internet speed, you can read our internet speed guide.
Selecting a Healthy Torrent
Make sure that the content that you’re downloading has enough seeders and leechers. A torrent with 100 seeders and 50 leechers will obviously be faster than one with only 50 seeders and 100 leechers.
Use Port Forwarding
A port is where your device receives communication signals from the external network. When you use the internet, a port is dedicated to specific functions.
As such, when there is a port configuration issue (such as it is closed for traffic), it will affect your torrenting speed. Through port forwarding, you can allow an external network to bypass restrictions and thus improve your torrenting speed by gaining higher priority from other seeds.
Is It Illegal to Download Torrent Files?
The short answer is no. The act of sharing files via torrent sites is not illegal in itself. It only becomes illegal when a user uploads or downloads copyrighted material through a torrent client or website.
Basically it is a server, which contacts the peers (basically the devices holding the torrent file connected in a network) and transfers the data between them using BitTorrent protocol (P2P protocol).
The peer sends a message to the torrent tracker to register its interest in a torrent file. The torrent tracker replies back with a list of other peers who have previously expressed interest on the torrent file. Then the peer connects directly to each of the peers it received from the torrent tracker.
Torrent trackers can be private or public.
Torrent Tracker lists are very useful to speed up and increase torrent download speed.
Here is the list for Top 10 Best Torrent Sites 2020
VPNs and Torrenting
Whether you are new to torrenting or have been doing it for years, the importance of a VPN is undeniable.
When downloading torrents, your IP address is being broadcast to the public which is unsafe.Try IPVanish Risk-Free Now!
A recent example of this involved the YTS Torrent Site Handing Over User Data to Authorities.
When downloading torrents, TROYPOINT always recommends using a VPN or Virtual Private Network.
A VPN will protect your privacy from ISPs, the government, MPAA, hackers, and other watchdog groups.
The best VPN for torrenting is IPVanish as it is available for use on up to 10 devices simultaneously and does not store traffic logs.
IPVanish masks your IP Address and protects your identity when downloading torrents.
It prevents you from publicly broadcasting your IP address so you will remain anonymous to your ISP, government, and other organizations.
Check out our guide below for more information on using a VPN when torrenting.
Working Torrent Tracker List
Here is working and updated list of Torrent Tracker:
Best 20 Torrent Tracker based on Popularity and Latency
Note: If you are having DNS issues or blocked tracker try trackers with IP address.
10 Websites to Watch Movies Online for FREE Legally ? Watch Now
All Working Torrent Trackers
How To Download Magnet Links Without Utorrent At High Speed Read More
How Does Torrenting Work?
Torrenting doesn’t depend on a centralized server for storing files. Instead, bits of data from individual large files are saved in participating computers (peers) in a network (swarm) to facilitate the file-sharing process. A P2P communication protocol like BitTorrent breaks down the files into pieces and moves them from uploaders (seeders) to downloaders (leechers) via a torrent client (a separate program that reads all the information in the .torrent file and connects users to exchange data).
Watch this video for more information.
A system of checks and balances described below is applied to make the torrenting process somewhat foolproof:
- A torrent file (.torrent) contains information telling users which computers are part of the file-sharing process. It may also provide some details on the files and folders that a user is downloading.
- The torrent client connects to a tracker, which holds the IP addresses of the devices in a swarm. The tracker forwards the IP addresses to all torrent clients to ensure all peers are connected.
- The torrent client starts the download. Once it receives sufficient bits of data, it also begins to upload the file for the benefit of other users.
Torrent Tracker List Updated On 1 March 2022
If your are downloading any copyright content like movies and music or need to use Torrent anonymously use VPN to download Torrents anonymously.
Here is a list of Best VPN for Torrenting
📁 Whats in a Torrent Descriptor File, Anyway?#
It’s a dictionary (or hashmap) file.
The file is described as:
The URL of the tracker. Remember earlier when we contacted the tracker server to find other peers using the same file? We found that tracker by using the announce key in the torrent descriptor file.
This maps to a dictionary whose keys depend on whether one or more files are being shared. The keys are:
Files (child of info, is a list)
Files only exists when multiple files are being shared. Files is a list of dictionaries. Each dictionary corresponding to a file. Each of these dictionaries has 2 keys.
**Length – **the size of the file in bytes.
Path – A list of strings corresponding to subdirectory names, the last of which is the actual file name.
The size of the file in bytes (only when one file is being shared)
Suggested filename. Or the suggested directory name.
- Pieces length
The number of bytes per piece.
The piece’s length must be a power of two and at least 16KiB.
This is $$2^8 ; KiB = 256 ; KiB = 262,144 ; B$$
A hash list.
A list of hashes calculated on various chunks of data. We split the data into pieces. Calculate the hashes for those pieces, store them in a list.
BitTorrent uses SHA-1, which returns a 160-bit hash. Pieces will be a string whose length is a multiple of 20 bytes.
If the torrent contains multiple files, the pieces are formed by concatenating the files in the order they appear in the files directory.
All pieces in the torrent are the full piece length except for the last piece which may be shorter.
Now, I can guess what you’re thinking.
“SHA-1? What is this? The early 2000s?”
And I agree. BitTorrent is moving from SHA-1 to SHA256.
Still confused? Not to worry! I designed this JSON file that describes what a torrent file looks like. Note: I’ve concatenated some things. This makes it easier to read and understand the general layout. I made the numbers up, following the rules of BitTorrent’s torrent descriptor.
One of the largest questions in BitTorrent is “what pieces should I select to download?”
With a traditional client-server model, we download the whole file. But now, we get to pick what pieces to download.
The idea is to download the pieces that no one else has – the rare pieces. By downloading the rare pieces, we make them less rare by uploading them.
🎐 The Choking Algorithm#
Choking is a temporary refusal to upload to another peer, but we can still download from them.
To cooperate peers upload, and to not cooperate they “choke” the connection to their peers. The principle is to upload to peers who have uploaded to us.
We want several bidirectional connections at the same time and to achieve Pareto Efficiency.
We consider an allocation Pareto Efficient if there is no other allocation in which some individual is better off and no individual is worse off.
Thus the big question, is how to determine which peers to choke and which to unchoke?
A peer always unchokes a fixed number of its peers (the default is 4).
Current download rates decide which peers to unchoke. We use a 20-second average to decide this. Because of the use of TCP (slow-start) rapidly choking and unchoking is bad. Thus, this is calculated every 10 seconds.
If our upload rate is high more peers will allow us to download from them. This means that we can get a higher download rate if we are a good uploader. This is the most important feature of the BitTorrent protocol.
The protocol prohibits many “free riders” which are peers who only download and don’t upload.
For a peer-to-peer network to be efficient, all peers need to contribute to the network.
BitTorrent also allows an additional unchoked peer, where the download rate criteria aren’t used.
We call this optimistic unchoking. Checking unused connections aren’t better than the ones in use.
We shift the optimistic unchoke every 30 seconds. Enough time for the upload reaches full speed. Same for the upload. If this new connection turns out to be better than one of the existing unchoked connections, it will replace it.
The optimistic unchoke is randomly selected.
This also allows peers who do not upload and only download to download the file, even if they refuse to cooperate. Albeit, they will download at a much slower speed.
What happens if all peers uploading to another peer decide to choke it? We then have to find new peers, but the optimistic unchoking mechanism only checks one unused connection every 30 seconds. To help the download rate recover more, BitTorrent has snubbing.
If a client hasn’t received anything from a particular peer for 60 seconds, it will presume that it has been ‘snubbed’.
Following the mentality of tit-for-tat, we retaliate and refuse to upload to that peer (except if they become an optimistic unchoke).
The peer will then increase the number of optimistic unchokes to find new connections quicker.
- Be aware that by downloading files (such as movies or songs) which you don’t already own, you are probably violating copyright law. There is a very real risk of litigation for users doing this.
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