Free bittorrent client linux software for linux

TorrentFlux is a PHP torrent client for Linux.
Manage all of your Torrent downloads through a convenient web interface from anywhere. Requires Apache with PHP module, MySQL and, BitTornado or BitTorrent source (included).
Main features:
- Upload Torrents via URL or File Upload
- Start, Stop, and Delete Torrents with a click
- Advanced Torrent start options (ports, speeds, etc.)
- Multi-user interface
- RSS Feeds, download Torrents files with a click
- View Download Progress of all torrents at a glance
- View drive space at a glance
- View Torrent file meta information
- Built-in User management and Security
- Private Messaging
- Themes (selectable per user)
- Upload History
- Detailed User Administration
- Admin Searchable Logs
- Torrent Search via Suprnova.org
- Language Support
Current language support for:
- Dutch
- English
- French
- German
- Hungarian
- Italian
- Norwegian
- Polish
- Portuguese
- Slovenian
- Spanish
- Swedish

DeLi Linux stands for "Desktop Light" Linux. It is a Linux Distribution for old computers, from 486 to Pentium MMX 166 or so. Its focused on desktop usage.
DeLi Linux project includes email clients, graphical web browser, an office package with word processor and spreadsheet, and so on. A full install, including XFree and development tools, needs not more than 250 MB of harddisk space.
The trick is, that DeLi Linux uses only "lightweight" alternative software. If you are looking for the newest KDE, GNOME or Mozilla, DeLi Linux will not make you happy. The test computer is a 486 laptop with 16 MB RAM, and all apps which comes with DeLi Linux are running smoothly.
"Why the heck make a Linux for such old crap ?" you may ask. There are still many computers around with the configuration mentioned above, it would be a shame to waste them. Many people simply cannot buy a 2 Ghz machine for 1000 $ or more, but they can buy a Pentium I 133 for 50 $ from ebay.
Many people are still happy with the computer they bought five years ago. Especially in the so-called third world, new hardware is not affordable. Well, theres still Windows95 or Windows 3.1, which will run on these machines, too. But these versions are not supported by MS anymore, they are no longer in production, and finally, you will not get any software for this old Windows version.
Enhancements:
- DeLi Linux 0.7.2 is the next and possibly the last release in the 0.7.x branch. DeLi Linux 0.7.2 have the following new features: Linux kernel 2.4.34.4; X.Org 7.2; a new default web browser, Konq-E (Konqueror Embedded) which has Javascript and CSS support; the pdq print system, which replaces lprng; improved and bug-fixed delisetup, deliget and netinstall; other new packages includes nano, Gutenprint, gv and xaw3d, and the new Liberation fonts from Red Hat.

BitTorrent Queue Manager is a console-based BitTorrent client running on top of BitTornado that provides built-in queue management functions.
BitTorrent Queue Manager also provides a remote interface compatible with ABC for Web-based control. Furthermore, peer information can be queried, including country and network names, and a built-in crawler can gather new torrents on specified trackers or catalog sites for downloading automatically.
This is the new beginning of BTQueue. By upgrading to 0.1.0, you are able to:
- Utilize DHT network compatible to Bram Cohens client and BitComet
- Query IP location from updated database plus AS number (see ip2cc)
- Change client identifier to Azureus, Bram Cohens client, or BitComet

CTBClient is a mobile client for the CTB. The main objective of CTBClient is to allow registering expenses and other financial events in the road, and later uploading them to the mother system.
It puts in use a set of exciting technologies: Bluetooth, Python SQL DBI, serialization (marshaling) of objects, GTK+, Python for Series 60 Nokia cell phones (known as S60), perhaps PyObjc in future Mac OS X versions etc. CTBClient is also meant to be a guinea pig for portable Python development.
CTBClient is a project sponsored by INdT - Instituto Nokia de Tecnologia (Nokia Institute of Technology), where I work and have the environment and time to make such experiments.
Functional clients are:
- GTK+ Linux/local (no Bluetooth, for quick tests);
- GTK+ Linux Bluetooth
- Symbian/S60 cell phone
- GTK+/Hildon Linux (Maemo platform, like Nokia 770 tablets)
Functional servers:
- Linux/local (for testing)
- Linux/Bluetooth

qBittorrent is a bittorrent client written in C++ / Qt4 using the good libtorrent library (By Arvid Nordberg).
qBittorrent aims to be a good alternative to all other bittorrent clients. The Author is Christophe Dumez, French Student in computer science (IT).
Main features:
- Fast resume of unfinished downloads on startup (no need to recheck files)
- Unicode Support
- Connection through proxy server support
- Download only some files within a torrent
- Scan regularily a folder and add automatically torrent files within to download list
- Drag n drop of torrent files to GUI
- Limit Upload / Download Speed
- Limit number of simultaneous connections
- User can set share ratio
- UDP Tracker support
- IP Filter support
- Display number of peers, complete / partial sources for each download
- Languages supported: English, French, Simplified Chinese, Spanish, Korean, German, Catalan, Polish, Dutch, Turkish, Greek, Russian, Swedish

QTorrent is a BitTorrent client that uses the Qt widget-set. QTorrent allows you to have several torrents open at the same time from within the same program window, offering you easy overview, access and management through a list-mode.

Every torrent also has its own page where you can control things like upload speed and upload slots. A page that shows some statistics of all open torrents is also available.

To use QTorrent, just download the tarball, extract it somewhere and run the qtorrent binary. Installing QTorrent is not necessary.