Free im software for linux

Openfire is a leading Open Source, cross-platform IM server based on the XMPP (Jabber) protocol.

Openfire server has great performance, is easy to setup and use, and delivers an innovative feature set.

Openfire is an enterprise instant messaging (EIM) server dual-licensed under the Open Source GPL and commercially. It uses the only widely adopted open protocol for instant messaging, XMPP (also called Jabber).

Openfire is incredibly easy to setup and adminster, but offers rock-solid security and performance.

Use Openfire in your organization as a more secure and feature-rich alternative to the consumer IM networks. Or, replace your existing EIM server with a more open, easier to use, and much less expensive solution.

Enterprise Grade

Openfire supports SSL/TLS encrypted connections out of the box as well as packet auditing to meet compliance requirements. Optionally tie Openfire into your organizations existing authentication system such as LDAP and then handle thousands of concurrent users on a single server.

Open Source and Open Protocol

Openfire is available under the Open Source GPL or a commercial license. It supports the open XMPP (Jabber) IM protocol and popular extensions. XMPP is supported by dozens of IM clients and allows for easy federation between IM servers. Openfire is among the most compliant XMPP servers available.

Cross-Platform

As a 100% Java application, Openfire supports Windows, Unix/Linux, and Mac OSX. The server can be deployed as a standalone application or service, or deployed in any J2EE compliant application server (Tomcat, Resin, etc) as a WAR (Web Application Archive).

Easy to Use

Get Openfire up and running within ten minutes. Then, administer the server using the web-based admin console.

Plugins

The server is easily extensible with a full plugin architecture. Visit the plugin library for a full list of available plugins.

Spark IM Client

Openfire works great with the cross-platform, feature-rich Spark IM client. Use the Spark Manager server plugin to manage the Spark clients on your server.

Server-Managed Contact Lists

Define groups of users in the server and then use the shared-group feature to automatically push those groups into users contact lists. This makes it very easy for people to start using the system and find the people they work with.

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

pyGAIM-t is a reworking of the popular GAIM IM client to be based on the Jabber transport, which can connect to any IM system that GAIM can.

AigaionPaste provides an open source bibliography management system.

Aigaion is an open source bibliography management system with excellent bibtex im- and export facilities.

This plugin allows you to easily copy BIBTEX or RIS into your Aigaion biblography database.

GalleryMaster is a PHP script for viewing slideshows. GalleryMaster is far from complete, but Im working on it when Im not studying or dating.
If you want to contribute to the project, then download the source. All sorts of feature requests are welcome.
Main features:
- Displays images of any format that your browser can handle
- Supports directory listing
- Intelligent gallery detection