PT (Private Tracker) is a P2P download method improved from the BitTorrent protocol. "Private Tracker" refers to a private seed server. The biggest difference from BT is that it can carry out private range downloads and record detailed data of each user. PT (Private Tracker) downloading is actually similar in principle to BT downloading, but it has two obvious improvements: one is private small-scale downloading, and the other is traffic statistics, which determines your permissions based on the download volume.
Features of PT
PT can be downloaded in a private range, so most of the discussion areas that provide PT are non-public, using an invitation system or opening registration from time to time. After the user registers, he will get a passkey, so each user can be identified by the passkey. After the user downloads a seed from a certain PT site, the seed will have the user's passkey. Therefore, PT's seeds cannot be exported to other places, and one user is not allowed to have too many IPs (usually the upper limit is 3 IPs) to upload and download at the same time.
In order to control the number of users, PT websites that close free registration generally use an invitation code system, where registered users send invitations to people they trust to ensure user quality. [1] Some sites also allow users to donate or purchase invitation codes through official channels to obtain invitations.
Because of the passkey, user uploads and downloads can be counted. In most PT sites, the download ratio (sharing rate) stipulates how much users need to upload before they can download. Some sites even use user uploads. and downloaded content will be used as points. Those whose sharing rate is too low will be disqualified from using PT by the system. Since sufficient uploads are required before downloading, some users will rent a Seedbox with large bandwidth on the network to increase their upload rate.
The PT website prohibits one person from having multiple accounts, multiple people sharing one account, and privately selling accounts. Even if a self-built server is used for high-speed uploading, the PT website does not accept servers provided for free by public server providers without independent IPs, and the seeds of the PT website cannot be directly used for proxy downloads, offline downloads, and online services provided by commercial websites. Pan cloud services and other functions.
Through these mechanisms, the "blood-sucking" behavior that often occurs in traditional P2P downloads where the client only downloads but does not share and upload will be eliminated. However, the number of seed creators of BT seeds decreased significantly after one or two weeks, so that the problem of later downloaders being unable to successfully complete the files was improved in PT.
PT software
The server software that supports PT includes Gazelle, XBT Tracker (XBTT), NexusPHP, etc.; the windows client software includes μTorrent; and the linux and Mac clients The terminal software includes μTorrent, Transmission, rTorrent, Vuze, Deluge, etc. Some PT stations only allow the use of specific PT software.
For moreFAQ, please visit the PHP Chinese website.
The above is the detailed content of What is pt download. For more information, please follow other related articles on the PHP Chinese website!