XDCC
Encyclopedia
XDCC was initially a script written in 1994 for ircII
by Xabi. This script extends the ircII DCC command.
Now XDCC refers to IRC bot
s running file sharing
programs in general. XDCC bots serve one or more usually large files for download using the DCC protocol
. Though XDCC is commonly employed in distributing illegal content, such as warez
releases of software, music, and movies, it can also be used in legal ways.
Unlike peer-to-peer
transfers, XDCC servers are often hosted on connections with very high upstream bandwidth, sometimes in excess of 100 Mbit. Often FTP
servers are also running on the XDCC servers to facilitate uploading of materials to them. Some XDCC servers run on security compromised computers.
To use XDCC, one can send a private message (query) or send a CTCP
command to a bot, using an IRC client. The user can ask a bot what files it has by private messaging "xdcc list" to the bot. However, this feature is often disabled as to not attract too much attention. When a user wants to download a packet or file from a bot, the user would type something such as "xdcc send #" to the bot. The bot will either start sending the user the packet or the bot will place the user in a queue, and force the user to wait their turn.
Addons exist, such as XDCCKlipperhttp://xdccklipper.sourceforge.net/ (for mIRC) which listen to adverts listed in a channel by the bots and save them to a separate window to facilitate easier browsing and allow users to view the status of a bot (speed, queues, slots etc.).
Some bots will not accept the 'xdcc list' command, and some will have a text file with the packlist in it available as pack #1.
IrcII
ircII is a free, open-source Unix IRC and ICB client written in C. Initially released in the late 1980s, it is the oldest IRC client still maintained. Several other UNIX IRC clients, including BitchX, EPIC, and ScrollZ, were originally forks of ircII...
by Xabi. This script extends the ircII DCC command.
Now XDCC refers to IRC bot
IRC bot
thumb|409px|right|An IRC bot performing a simple task.An IRC bot is a set of scripts or an independent program that connects to Internet Relay Chat as a client, and so appears to other IRC users as another user...
s running file sharing
File sharing
File sharing is the practice of distributing or providing access to digitally stored information, such as computer programs, multimedia , documents, or electronic books. It may be implemented through a variety of ways...
programs in general. XDCC bots serve one or more usually large files for download using the DCC protocol
Direct Client-to-Client
Direct Client-to-Client is an IRC-related sub-protocol enabling peers to interconnect using an IRC server for handshaking in order to exchange files or perform non-relayed chats. Once established, a typical DCC session runs independently from the IRC server. Originally designed to be used with...
. Though XDCC is commonly employed in distributing illegal content, such as warez
Warez
Warez refers primarily to copyrighted works distributed without fees or royalties, and may be traded, in general violation of copyright law. The term generally refers to unauthorized releases by organized groups, as opposed to file sharing between friends or large groups of people with similar...
releases of software, music, and movies, it can also be used in legal ways.
Unlike peer-to-peer
Peer-to-peer
Peer-to-peer computing or networking is a distributed application architecture that partitions tasks or workloads among peers. Peers are equally privileged, equipotent participants in the application...
transfers, XDCC servers are often hosted on connections with very high upstream bandwidth, sometimes in excess of 100 Mbit. Often FTP
File Transfer Protocol
File Transfer Protocol is a standard network protocol used to transfer files from one host to another host over a TCP-based network, such as the Internet. FTP is built on a client-server architecture and utilizes separate control and data connections between the client and server...
servers are also running on the XDCC servers to facilitate uploading of materials to them. Some XDCC servers run on security compromised computers.
To use XDCC, one can send a private message (query) or send a CTCP
Client-To-Client Protocol
Client-To-Client Protocol is a special type of communication between Internet Relay Chat clients.CTCP is a common protocol implemented by most major IRC clients in use today. CTCP extends the original IRC protocol by allowing users to query other clients or channels, this causes all the clients...
command to a bot, using an IRC client. The user can ask a bot what files it has by private messaging "xdcc list" to the bot. However, this feature is often disabled as to not attract too much attention. When a user wants to download a packet or file from a bot, the user would type something such as "xdcc send #
Addons exist, such as XDCCKlipperhttp://xdccklipper.sourceforge.net/ (for mIRC) which listen to adverts listed in a channel by the bots and save them to a separate window to facilitate easier browsing and allow users to view the status of a bot (speed, queues, slots etc.).
Common (iroffer) XDCC Commands
Unless otherwise noted, most commands may be sent via ctcp instead of msg. Some servers disable msg commands.-
/msg
- Requests the specified pack number from the bot.xdcc send # -
/msg
- Requests a list of packs available from the bot.xdcc list -
/msg
- Removes all files one has queued for sending. (This only works via msg.)xdcc remove -
/msg
- Removes the file in the specified queue position. (This only works via msg.)xdcc remove # -
/msg
- Requests progress status for the elements being queued via send command.xdcc queue -
/msg
- Requests information about the specified pack number.xdcc info #
Some bots will not accept the 'xdcc list' command, and some will have a text file with the packlist in it available as pack #1.
XDCC Software
- XG - XDCC Grabscher - Free XDCC Client/Server Software (Windows, Linux, ...)
XDCC Search Engines
External links
- XDCC Browser - XDCC script
- xdcc script 3.3.0 beta - The original XDCC script
- iroffer xdcc bot - Bot implementation of the XDCC script so it runs without a irc client by PM
- iroffer-modDinoex - extended bot derived from the original iroffer by Dinoex
- iroffer-lamm - extended bot derived from the original iroffer by lamm