Free communications software for linux

Ice, the Internet Communications Engine, is middleware for the practical programmer. A high-performance Internet communications platform, Ice includes a wealth of layered services and plug-ins. Ice means simplicity, speed, and power.
Ice is available under the terms of the GNU General Public License (GPL). Commercial licenses are available for customers who wish to use Ice with proprietary products. Please contact sales@zeroc.com for more information.
Ice is currently available for C++, Java, C#, Visual Basic, Python, and PHP, and is supported on various operating systems. Additional operating systems and languages will be supported in future releases.
Ice consists of the following packages:
Slice The Specification Language for Ice. Slice establishes a contract between clients and servers, and is also used to describe persistent data.
The Slice Compilers Tools to compile from Slice into target languages, such as C++ and Java, or to automatically generate documentation from Slice files.
Ice The Ice core library. Among many other features, the Ice core library manages all the communication tasks using a highly efficient protocol (including protocol compression and support for both TCP and UDP), provides a flexible thread pool for multi-threaded servers, and additional functionality that supports extreme scalability with potentially millions of Ice objects.
IceUtil A collection of utility functions, such as Unicode handling and thread programming. (C++ only.)
IceBox An application server specifically for Ice applications. IceBox can easily run and administer Ice services that are dynamically loaded as a DLL, shared library, or Java class.
IcePack A sophisticated server activation and deployment tool. With IcePack, the complex task of deploying applications in a heterogeneous computer network is dramatically simplified. Simply write a deployment descriptor in industry-standard XML, and IcePack handles the rest.
Freeze Freeze provides automatic persistence for Ice servants. With just a few lines of code, an application can incorporate a highly-scalable evictor that efficiently manages persistent objects.
FreezeScript It is common for persistent data types to change, especially in large software projects. In order to minimize the impact of these changes, FreezeScript provides inspection and migration tools for Freeze databases. The tools support an XML-based scripting capability that is both powerful and easy to use.
IceSSL A dynamic SSL transport plug-in for the Ice core. It provides authentication, encryption, and message integrity, using the industry-standard SSL protocol.
Glacier One of the most difficult challenges for object middleware systems is security and firewalls. Glacier, the firewall solution for Ice, greatly simplifies the deployment of secure applications. Glacier authenticates and filters client requests and allows callbacks to the client in a secure fashion. In combination with IceSSL, Glacier provides a powerful security solution that is both non-intrusive and easy to configure.
IceStorm A messaging service with support for federation. In contrast to most other messaging or event services, IceStorm supports typed events, meaning that broadcasting a message over a federation is as easy as invoking a method on an interface.
IcePatch A patching service for software distributions. Keeping software up-to-date is often a tedious task. IcePatch automates updating of individual files as well as complete directory hierarchies. Only files that have changed are downloaded to the client machine, using efficient compression algorithms.
Enhancements:
- Various additions, including redundant IceGrid registries.

Meldware Communication Suite is a platform independent groupware package consisting of:
Meldware Mail
Meldware Calendar
Meldware Webmail
Meldware Secure Administration System
Together the package provides support for thousands of users to concurrently send and receive email and schedule meetings. MCS uniquely allows you to store all messages and scheduling events in nearly any database and runs on nearly all popular software and hardware platforms.
Additionally, while the scheduling and calendaring services are able to be installed separately, the integrated featureset provides both a unique and powerful experience to both users and server-side Mail Based Applications and Collaboration Based Application Services.
The MCS platform provides security integration using LDAP sources including Microsoft Active Directory as well as flat-file and Database sources. Additionally, extensible security allows custom authentication/authorization sources.
Enhancements:
- IMAP is now stable with Mozilla Thunderbird and POP/SMTP are production ready.
- New Filestore code was implemented and many improvements were made in mailbox and storage code.

Libtubo Interprocess Communication is a small and simple library that can run processes in the background and communicate via the stdout, stderr, and stdin file descriptors.
The functionality of libtubo is similar to the glib function g_spawn_async_with_pipes(), except that all pipe setup and monitoring is taken care of.
The calling function only has to provide the functions with which to process the input/output of the remote process.
The library first appeared in the year 2000 in the xfce3 desktop as part of the xfsamba application, and is now available for use for other developers.
Enhancements:
- Some control bugfixes.
- The version has been updated to the xffm scheme, as this package is now distributed with xffm.

Buni Meldware Communication Suite (MCS) is a platform-independent groupware package consisting of:
- Meldware Mail
- Meldware Calendar
- Meldware Webmail
- Meldware Secure Administration System
Together the package provides support for thousands of users concurrently to send and receive email and to schedule meetings. MCS uniquely allows you to store all messages and scheduling events in nearly any database and runs on nearly all popular software and hardware platforms.
MCS commitment to platform and database agnosticism aims to meet increasing business requirements to maximize ease and flexibility of managing and accessing data as well as putting a premium on interoperability.
Additionally, while the scheduling and calendaring services can be installed separately, the integrated feature set provides both a distinctive and powerful experience to both users and server-side Mail Based Applications and Collaboration Based Application Services.
The MCS platform provides security integration using LDAP sources including Microsoft Active Directory as well as flat-file and database sources.
Additionally, extensible security allows custom authentication/authorization sources.
Enhancements:
- This is the first milestone release with WCAP, freebusy for webmail, and mature IMAP all together.
- It has undergone extensive hardening, dogfooding, and QA testing.
- The WCAP protocol for calendaring now works well for Thunderbird and Lightning 0.3.
- Webmail calendaring was greatly improved.
- The abillity to download attachments has been added to the webmail interface.
- Numerous performance improvements have been made in SMTP, IMAP, and MIME parsing since 1.0-M7.

PictoChat sniffer allows you to spy live on PictoChat communications between Nintendo DS gaming consoles.

Requires a 802.11 device with support for monitor mode and Radiotap (tested only under FreeBSD with the p54u driver). Based upon GTK2 and libpcap.

Station Info program searches for and displays AM, FM, and TV station entries from databases supplied by the US Federal Communications Commission (also known as the FCC).

The station-info program provides many ways of selecting a collection of stations for display, and several criteria by which these stations can be sorted.

Detailed information on each station is available, including an antenna radiation pattern, ownership information, and whatever else seems useful.

The program is currently available in source code form only. It has been developed and tested on a GNU/Linux platform, but should build without problem on any platform that supports the Gtk+ toolkit and the Gnome libraries.

MynahSA is a cross-platform toolkit for connecting C++ objects to data streams. Developers using MynahSA can quickly and easily create client/server applications or encrypted files containing serialized object data.
The toolkit uses OpenSSL for encryption and secure network communications. MynahSA is tested on Linux, Microsoft Windows, Apples Mac OS X, and Suns Solaris.
Main features:
- Threaded, OpenSSL based client/server applications are quickly and easily created.
- Data can be streamed to files with or without strong encryption.
- Cross platform streaming: Write data on a PowerPC, read it on an x86 and vice-versa.
- Cross platform: MynahSA code is portable between Linux/Apples OSX/ Suns Solaris and Microsofts Windows.
- MynahSA is Open Source Software with professional support.
- It is not XML! - Objects are archived with a minimum excess of data storage.
- Minimal data buffering is used internally: With the exception of a few compiler work-arounds data is not buffered.
- SSL and TCP transports allow for a tradeoff between security and network transmission speed.

openDICOM.NET software implements a new approach towards DICOM (Digital Imaging and Communications in Medicine) libraries. DICOM is a worldwide standard in Medical IT and is provided by the National Electrical Manufacturers Assocation (NEMA). This standard specifies the way medical images and meta data like study or patient related data is stored and communicated over different digital medias. Thus, DICOM is a binary protocol and data format.

The openDICOM# Class Libary, main part of the openDICOM.NET project, provides an API to DICOM in C# for Mono and the .NET Framework. It is a completely new implementation of DICOM. In contrast to other similar libraries the intention of this implementation is to provide a clean classification with support of unidirectional DICOM data streaming. Another implemented goal is the support of DICOM as XML. This is not standard conform but very use- and powerful within software development, storage and manipulation. Currently, full read support of DICOM output stream and full write support to XML is supposed to be provided. The entire DICOM content can be accessed as sequence or as tree of class instances. Latter is the default representation of DICOM content by the library.

The openDICOM.NET Utils are a collection of console tools for working with the needed data dictionaries in different data formats (binary and textual), query of ACR-NEMA (prior DICOM standard) and DICOM files and transcoding them into image formats like JPEG and XML files. These utils are written in C# for Mono and the .NET Framework and are using the openDICOM# API for processing.

Last but not least, the openDICOM.NET Navigator recapitulates the openDICOM.NET Utils in form of a GTK# GUI. It provides different views with focus on DICOM data sets and visualization. Connectivity to GIMP is also given for image processing purpose as well as the possibility to run through multi-frame images like a movie.