Free file transfers software for linux

Fast Data Transfer is an application for efficient data transfers that is capable of reading and writing at disk speed over wide area networks (with standard TCP).
It can be used to stream a large set of files across the network, so a large dataset composed of thousands of files can be sent or received at full speed, without the network transfer restarting between files.
The project is written in Java, runs an all major platforms, and is easy to use.
Main features:
- Streams a dataset (list of files) continuously, using a managed pool of buffers through one or more TCP sockets.
- Uses independent threads to read and write on each physical device
- Transfers data in parallel on multiple TCP streams, when necessary
- Uses appropriate-sized buffers for disk I/O and for the network
- Restores the files from buffers asynchronously
- Resumes a file transfer session without loss, when needed

File Beamer is an easy to use file transfer tool. The programm is platform independent. That means it runs with Windows 98/ME/2000/XP, Linux, Unix and MacOS X.

This is made possible by using Trolltechs Qt Library which provides an easy to use GUI toolkit, networking functions and a lot more.

File Beamer is free open source software and was released under the GPL license.

Usage:

Receiving files:

Click the "Receive" tab
If the receiver is behind a firewall or router, check "reverse connection" and enter the senders IP or host name. *
Click the "listen" button. The client can now receive files
When receving a file, a "Save as" dialog appears. Choose a place to safe the file.

Sending files:

Click the "Send" tab
If the receiver is behind a firewall or router check "reverse connection" *
Else input the target IP address or host name and port
Select a file to send either by typing the path or by clicking the "..." button
Click the "Send" button (target must be in listen mode)

fileq transfers files from an incoming queue (directory) to a list of destinations. Destinations can only be directories on remote hosts.

The respective transfers are performed using the sftp command line utility from the OpenSSH package. After a successful transfer to all destinations, the local queue (directory) is emptied.

fileq can be very handy for automated distribution of files to different hosts using a cron job and public key based authentication in ssh connections.

OPTIONS:

-c, --config-file file

Specify a config file.
-h, --help

Displays this help
-V, --version

Display version and exit

IM-Filter is a daemon for GNU/Linux firewall hosts written in C which is able to analyze and filter the ICQ protocol. The daemon runs in userspace and fetches packets of the ICQ protocol by using the libnetfilter_queue mechanism.
IM-Filters main purpose is to run at a gateway, so all ICQ-related traffic of users in the LAN runs over IM-Filter. Nevertheless the daemon could also be used directly on end users computers. The following diagram shows, how the daemon is integrated in a GNU/Linux system.
One of the design goals of IM-Filter was modularity. So plugins for other protocols like MSN or IRC could be written easily. The source code already contains skeleton code for an IRC module.
Together with the source code, adequate iptables scripts are provided so that only packets which belong to ICQ traffic get in the netfilter queue of IM-Filter.
Main features:
Logging of messages sent via ICQ
IM-Filter is able to identify and log messages which have been sent via the ICQ protocol. These messages contain a timestamp, an IP-address, the appropriate UIN and - of course - the message itself. A logged message could look like this:
[2007-07-27 11:24:21] IP "10.0.0.1" sent following message to #123456789: "hello, this is a test"
Blacklists for messages and UINs
IM-Filter handles two different blacklists: for messages and for UINs. The message blacklist holds strings which must not occur in text messages. When such a string is detected in a message, it gets censored in the logfiles.
The UIN blacklist contains UINs of users which are not allowed to connect to the ICQ network. Those blacklists can be re-read by the daemon during runtime by sending signals.
Detection and blocking of file transfers
Since file transfers are not always welcome, they can be blocked by invoking the daemon with a specific command line argument. Then, users in the LAN can not send files to other users anymore. Beside blocking, the daemon logs file transfers. Such a log entry can look like this:
[2007-07-06 17:01:26] FILTRANSFER detected (outgoing): receiver uin: #123456789 || filename: test.txt || size: 143360B
List with currently logged in users
To be able to know which users are currently logged in, IM-Filter manages a text file which holds all necessary information. By default, the file is placed in /var/log/imfilter.users and contains IP-address and UIN of the users which are currently logged in. The file could look like this:
UIN=123456789, IP=10.0.0.1
UIN=234567890, IP=10.0.0.22
UIN=345678901, IP=10.0.0.4

Enterprise File Exchange (EFX) slots in where email file attachment limits stop your users from sending those important files to a contact.

In the EFX world, the user visits the EFX site, uploads the file, enters the receivers email address and lets the system notify the receiver that theres a file waiting for them, via a simple email message.

Senders need to sign up, and the EFX system only allows transfers between internal users (those with addresses in an approved list) and external users, never external to external.

It is written in Python, using the Pylons framework.

This project is licensed under the GNU GPL version 3.

FSP stands for File Service Protocol. It is a very lightweight UDP based protocol for transferring files.
FSP has many benefits over FTP, mainly for running anonymous archives. FSP protocol is valuable in all kinds of environments because it is one of the only TCP/IP protocols that is not aggressive about bandwidth, while still being sufficiently fault tolerant.
FSP is what anonymous FTP *should* be.
FSP: reliable and bandwidth friendly way to access publicly available data. Some people calls it UDP FTP.
Enhancements:
- use getopt from stdio.h instead of getopt.h in fspscan.c
- fspscan now compiles on AIX and other OS without glibc (hoaxter)
- !! fixed fatal bug from b23. Server sends large packets to clients if
- client request has not prefered reply size inside. This confuses all old fsp clients.
- common/strdup.c removed
- bsd_src/function.c bcopy -> memmove
- removed STDC_HEADER checks, drop support for pre-ANSI compilers started work on alternate SCons based build system
- fspd: use urandom, not random -> avoid hangs on Lin suck 2.6
- build system converted to SCons
- !! fixed directory listing bug in client library introduced in beta23
- improvements to security of FSP clients
- seq. numbers are now randomized
- seed random number generator in fsp clients
- check cmd in received packets
- check pos in received packets

Fidelio is a Linux/Unix client for Hotline, a proprietary protocol that combines ftp-like, irc-like and news-like functions with user authentication and permissions in one package.
Fidelio is currently fully functional as a non-administative client, but it has banners banners.
Main features:
- Multiple concurrent connections
- Single window per server connection
- Tree-structured bookmarks
- Trackers and searchable index of servers.
- Userlist and public chat in one pane.
- Private chat
- Both flat (v. 1.2) and threaded news support, with posting of news.
- Ignore messages and chat of users.
- Private Messages
- Sounds on events
- Multiple icon set loading
- Use of custom icon sets for buttons
- Uploading, donwloading, resuming of file transfers.
- Per-donwload and per-upload bandwidth caps
- * Server-side and client-side file queues.