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Christian Aubry   rss

Christian Aubry est un communicateur d'expérience passionné par le logiciel libre. Sa mission principale consiste à dynamiser les communications numériques de Savoir-faire Linux. Il réalise ou collabore à la production de nombreux contenus Web — billets de blogues, vidéos, publications de médias sociaux et autres documents — ainsi qu'à la planification de divers événements. [Twitter] [Linkedin] [etc.]

Rejoignez Ring!Imagine a free software for multimedia communication so instantly easy to use that it requires no special configuration, no online account, and no password. Imagine that it is built with the latest peer-to-peer (P2P) technologies, secured with the best encryption standards, and that you can use it for free, without licence fee, to exchange voice and video communications with one or more callers. Well, this software is born. It is called Ring and is still in its early alpha stage.

I have asked Guillaume Roguez, a senior Free Software Consultant at Savoir-faire Linux and Director of the Ring project, to share some technical details:

Tell us how Ring is born and what are its basic characteristics?

Guillaume RoguezRing is the evolution of a former project — SFLphone — which has matured over the last ten years and was based on the old concept of centralized data. The change in technology and the world in general has been the guiding framework of the new software. We have completely rewritten the deeper layers and decided to incorporate so new and revolutionary features in it that we had to change the name.

The essential concept is decentralization. Ring implements the DHT — a technology to identify and retrieve IP addresses of any client connected to a distributed network system. So, it is no longer necessary to go through a centralized server as SIP or AIX2 to locate and call someone.

With Ring, each account is identified on the network by a personal digital footprint commonly called « hash » ― a unique code of 40 letters and numbers linked to an identification certificate and a pair of asymmetric keys for encryped communications. It registers itself by distributing its identity not to one but multiple equivalent « servers » ― each machine acting in fact as an identity server for others. These machines can appear, disappear and be replaced by others at any time. The table of hashes containing all the identities of connected users and their IP addresses at a given time is distributed to all their machines.

To use a simple analogy is, things happens almost like in a street of a residential area. You know your neighbors, but not the neighbors of your neighbors’ neighbors. Yet it will be easy to find them by querying a first neighbor who will ask another and so on. A substantial difference is that digital networks are much faster and much more effective than word of mouth. (laughs)

Can we really speak of complete privacy?

Yes, to the extent that this issue is returned to brought back to where it resided earlier ― at the human level. When you communicate with someone, you do it with confidence to that person. Ring ensures that confidence is maintained and reliable.

Technologically, encryption is based on the well known system of asymmetric keys ― public key and private key. Ring uses the latter to encrypt outgoing communications. The private key is stored only on your machine and never comes out: only you possess the copy. Even if some entity intercepted data packets on the fly, you can be certain that they will not get any benefit.

Another very important aspect of security is the fact that Ring is a free software licensed under GPLv3. Its source code resides on the public servers of Savoir-faire Linux, and the codes of its software dependencies are available on the public servers of their respective communities. In short, everything is free, accessible, and transparent!

Advanced users can also help to correct problems: we welcome contributions. We expect people to tell us what needs to be corrected, but they can also do it and submit their patches. This is the way it worked with SFLphone and it works pretty well.

What operating systems does Ring support and what is the roadmap?

At the end of April, we have opened our first alpha version, still in its infancy, for 64-bit Linux systems based on Ubuntu and Fedora as well as Mac OSX. Of course, we have already tested internally and with a bunch of geeks our there, but we have to check if it works well on a large distributed network. It is expected that we receive a lot of feedback and correct some problems. This is precisely the aim of this first step.

Subsequently, we’ll start the beta phase, adding more advanced features, and with two main objectives:

  • First, frequency. We want to be very close to the needs and feedback of the community. So we will offer frequent updates.
  • Secondly, interoperability. We will work on mobile platforms such as Android and simultaneously on a Windows port, which is already well advanced.

Making our tools available to as many people as possible is in the very logic and moral values of free software. So we develop Ring constantly keeping in mind the fact that he had to be portable across many architectures ― office systems and mobile platforms, of course, but also (and perhaps, especially) embedded systems. With the Internet of Things, embedded systems will become highly sensitive platforms in the coming years.

» Interview by ring:6a8da1380eb39e06d76634944384022ca92da937

 

On October 12, 2013, we had the pleasure to host the annual Gnome Summit in Montreal and, in the evening, we organized a community meet-up in our offices. Gnome core developers and local hackers met, had food, a couple of drinks and quite a lot fun together. The event was supposed to end around 9:00 PM but, finally, it lasted beyond 11:00 PM. :-)

During the meet-up Karen Sandler, Executive Director of the Gnome Foundation, kindly answered our questions about the Gnome Summit and the state of Open Source in the world. In this interview she explains why the annual « Boston » Summit now takes place every second year in Montreal, and briefly presents the main technical issues that were on the agenda during the weekend — especially desktop accessibility. Finally, she shares her thoughts on the state of Open Source in the world and how much work still has to be done to live in a better digital world.

The Montreal Gnome Summit 2013 was sponsored by the FQCIL (Quebec Free Software Community and Industry Federation) and Savoir-faire Linux. You can read more in our previous post.

The 13th annual summit of developers and contributors of the GNOME desktop environment and graphical user interface for GNU/Linux will be held on Canadian Thanksgiving weekend in Montreal. Host sponsor Savoir-faire Linux is delighted that CRIM agreed to host this important community event.

The « Boston » Montréal GNOME Summit 2013 is a three-day hackfest for a small group of GNOME developers and contributors that will work together on getting things done. For local developers familiar with GNOME code and seriously wishing to get involved, this is a great opportunity to meet with this community.

Savoir-faire Linux, together with the FQCIL, is pleased to invite representatives of the Free Software industries and communities to a networking cocktail offered at its Montreal headquarters on Saturday October 12, starting at 06:00 PM.

RSVP – Please register online before October 11 at 04:00 PM:

RSVP on Eventbrite

Jonathan Clarke - Normation - CFEngine

This coming September, Normation‘s CTO Jonathan Clarke* will travel from Paris (France) to Montreal in order to give a 3-day modular training session on CFEngine 3** at Savoir-faire Linux. Our CFEngine Practice Leader Jean Rémond had a talk with him over a Google video chat recently. Jonathan provided him insight into the training syllabus tailored to the needs of system administrators seriously interested to get their hands on this popular open source configuration management system.

a11yLa vidéo est sous-titrée en français ↗  cc  ↗ English captions available

» Read more about CFEngine on Wikipedia.
» Learn more about the training on the CFEngine website.
» Register to this North-American session on Evenbrite.

About The Instructor

Jonathan Clarke has already trained hundreds of people and he is one of the few CFEngine Champions worldwide. You may follow him on Twitter where he is known as @jooooooon42.

About CFEngine

In short, CFEngine is an open source software that aims to provide automated configuration of large-scale computer systems and a unified management interface for servers, desktops, networked devices, smartphones, and tablet computers. The editor is based in Norway and reports 10 millions servers under management in more than 100 countries, including those of many of the world’s largest organizations. Many North-Americans companies rely on Savoir-faire Linux’s Infrastructure team to coach them and help them to leverage the power of this automated configuration management system.

Launching the Liferay intranet of  Walter Technologies at Savoir-faire Linux

Recently we have achieved a major integration of the Liferay Web Portal for Walter, a leader in metal working and cutting tools which has been providing for more than 50 years a range of high performance environmental products and solutions for the metal industry. Listen to César Strafile, the project leader, explaining the problem that the company faced and what he thinks of the solution provided by Savoir-faire Linux.

Les sous-titres sont disponibles ⇗  cc  ⇗ Subtitles are available

Powered by Liferay, the multilingual intranet of this international corporation serves hundreds of employees and partners from 7 countries in five languages.