Free file sharing client software for linux

Zimbra Collaboration Suite project is a client/server technology for enterprise messaging and collaboration.
Zimbra delivers innovation for both the administrator and the end-user as well as compatibility with existing infrastructure and applications (both open source and proprietary).
The Zimbra Collaboration Suite provides support for email, contacts, and group calendaring, and consists of a server and client.
Main features:
Administrator Benefits
- Online move, backup and recovery of individual or a group of mailboxes
- Compatibility with Active Directory and existing LDAP directories
- Native hierarchical storage management and clustering
- Web services integration with existing enterprise applications
- Integrated anti-spam and anti-virus
End-User Benefits
- Browser based client with search, shared calendar and mail that is integrated with contacts and calendar
- Support for Outlook: calendar, mail, contacts and offline mode
- Support for mobile devices: Blackberry, Treo and etc
- Support of Windows, Apple and Linux computer.
Whats New in 5.0.0 Beta 1 Development Release:
- This is the first release in the 5.0.0 release cycle.
- New features include IM, Tasks, Standard Client autocompletion, and keyboard navigation.
- Updates have been made to migration wizards and apple/outlook connectors.
Whats New in 4.5.6 Stable Release:
- Support for an automated MySQL database corruption check that will send a notification to the admin.
- Spam training has been enhanced by allowing programmatic scanning of folders without requiring a password.
- Admins can get backup and restore complete notifications sent via email.
- .Doc and .pdf files open correctly in Zimbra Web Client.
- iSync will not duplicate the calendar, and iSync Connector works correctly with Mac OS X 10.4.10.
- Servers automatically start after a ZCS upgrade.
- Web-based cross-mailbox discovery is available for the optional Zimbra Archiving and Discovery module.

Ragnarok Online Client project is a client to the Ragnarok online network.
Ragnarok Online Client is a client to the Ragnarok online network, an MMORPG.
This project only provides an API to be able to program a client without having to understand the protocol itself, and to keep up-to-date just by the library.
Enhancements:
- Made it work with current iRO and improved it to be able to stay online until one kills it ... though no user interaction is implemented yet

LimeWire is a multi-platform Gnutella client with nice features like auto-connect, groups, browse host, multiple search, upload throttling, connection quality control, library management and sophisticated filtering. LimeWire is built for the both the novice and power user.
LimeWire allows you to search for multiple files at the same time, available in several different languages, and is most famous for its ease-of-use and cross compatibility.
LimeWire will run on Windows, Macintosh, Linux, Sun, and other computing platforms.
Main features:
- Ease of use - just install, run, and search
- Ability to search by artist, title, genre, or other metainformation
- Elegant multiple search tabbed interface
- "Swarm" downloads from multiple hosts help you get files faster
- iTunes integration for Mac users
- Unique "ultrapeer" technology reduces bandwidth requirements for most users
- Integrated chat
- Browse host feature--even works through firewalls
- Added Bitzi metadata lookup
- International versions: Now available in many new languages.
- Connects to the network using GWebCache, a distributed connection system
- Automatic local network searches for lightning-fast downloads. If youre on a corporate or university network, download files from other users on the same network almost instantaneously!
- Support for MAGNET links that allow you to click on web page links that access Gnutella.

MudMagic Mud Client is a client for connecting to online text games.
Main features:
- Written in gnomes gtk
- Free for use and modifications
- OpenSource development
- MSP, MCCP, ZMP support
- HTML support
- Perl & Python script support
- Plugin-management
- Automapper with notes
- Note writing
- Session management
- Multi-line input
- Game storage details
- On demand game list
- Modular developed for expansion
- Linux and windows compatible
- Triggers available
- Alias writing and storage
- Macro and hotkey management
- SQLite user database
- Extensible UI with plugins
- Software supported by MudMagic.Com
- Will always be free
- and much more...

BlinkenServ provides a file server project for Blinkenlights-based systems.

The BlinkenServ (or BlinkServ) is a project aimed at developing software for the Simple Blinkenlights Transport Protocol.

It currently provides a graphical server suite that features streaming, file sharing for blm movies, and uploading of love letters and the ability to play them on demand.

It includes a stream viewer (compatible with CCCs blccc) as well as a file sharing client that uses the SBTP protocol.

MLdonkey is a multi-platform multi-networks peer-to-peer client. Originally, MLdonkey was the first open-source client to access the eDonkey network. The protocol was reverse-engeneered using an efficient protocol sniffer, Pandora .
Currently, with eDonkey , it supports several large networks, such as Overnet , Bittorrent , Gnutella (Bearshare, Limewire,etc), Gnutella2 (Shareaza), Fasttrack (Kazaa, Imesh, Grobster), Soulseek (beta), Direct-Connect (alpha), and Opennap (alpha). Networks can be enabled/disabled, searches are performed in parallel on all enabled networks, but each file is only downloaded from one network (wait for next release !), but from multiple clients concurrently.
MLdonkey runs as a daemon on the computer. It can be controlled using several interfaces: the simplest one is telnet (telnet 127.0.0.1 4000), a more interesting one is a WEB server (http://127.0.0.1:4080/), and a binary protocol allows access using more elaborate Graphical Interfaces (see the GUIs available on your system at the bottom of the page). MLdonkey comes by default with a GTK interface. All these interfaces can be used locally, or remotely (after disabling security restrictions).
MLdonkey is written in Objective-Caml , a powerful language that runs on most Operating Systems.
Enhancements:
- Ocaml 3.10.0 is now the default compiler
- do not compile unmaintained Gnutella/G2 by default
- non-EDK: Discover WAN IP
- Swarmer: Optional linear downloadBT: Improve UTF8 support
- BT: Support user_commit_dir when seeding
- BT: Fix country-based IP blocking

Snark is a client for downloading and sharing files distributed with the BitTorrent protocol. It is mainly used for exploring the BitTorrent protocol and experimenting with the the GNU Compiler for Java (gcj). But it can also be used as a regular BitTorrent Client.

Snark can also act as a torrent creator an http server.

When given the option --share Snark will automatically create a .torrent file, start a very simple webserver to distribute the metainfo.torrent file and a local tracker that other BitTorrent clients can connect to.

Web Sharing is a small tray applet for sharing files on the web.

Publish anything on the Internet or your local area network at home, office or school from a folder on your hard disk with just a few clicks of a mouse!