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The hack, performed by Clokr, exploits a vulnerability in the Windows kernel that has existed for a long time — since before Microsoft ported Windows from x86 to ARM, in fact. Basically, the Windows kernel on your computer is configured to only execute files that meet a certain level of authentication. There are four levels: Unsigned (0), Authenticode (4), Microsoft (8), and Windows (12). On your x86 Windows system, the default setting is Unsigned — you can run anything you like. With Windows RT, the default, hard-coded setting is Microsoft (8); i.e. only apps signed by Microsoft, or parts of Windows itself, can be executed.

The year is starting out with what may turn out to be significant changes in the mobile operating system market, with open source software playing a significant role just as it has in enterprise software, virtualization and cloud computing. With fading heavyweights and interesting new challengers, there are changes afoot in the mobile OS market.

Mozilla uploaded a few hours ago, January 7, the final packages of the Mozilla Firefox 18.0 web browser for all supported platforms, including Linux, Mac OS X and Windows.

This article shows two ways to connect to the internet using the Raspberry PI. The first way uses the graphical tool provided. The second way shows how to connect to the internet using the command line. Whilst ordinarily I would recommend using the GUI sometimes it isn't available and so knowing both ways helps in the long run.

Mozilla Firefox 18.0 is now available. The main feature of this open-source web-browser update is the introduction of IonMonkey, a faster JavaScript compiler...

Every so many months we roll a new Plasma Active release. We've done three big releases so far and are working on a fourth for release in the early Spring. These releases are great for people using Plasma Active on a device or for device integrators looking to make a releasable product.

If you want to stay on the leading edge, however, you can follow the devel repositories from the Open Build Service. This is fun as you get to see our work in near real-time. At least when things build, and since we're talking about an entire operating system stack for these images that doesn't always hold. The devel repositories not only include our own work, but also new work done by the Mer community. Sometimes it can get a bit chaotic.

OpenStack remains the largest and most active open source cloud computing project, Network World notes. But research from Chinese blogger Qingye "John" Jiang suggests that momentum is building for CloudStack, and interest in Eucalyptus and OpenNebula remains strong. For cloud services providers (CSPs) and consultants, it's critically important to track each of the four open source cloud platforms. Here's why.

American McGee just posted updates about Linux support for Akaneiro.

The Chakra project team is proud to announce the fifth 'Claire' release, (a code name that follows the KDE SC 4.9 series). The day the 2012.12 release was announced as the final ISO image in the 'Claire' series, KDE announced there was going to be a KDE 4.9.5. That fact combined with KDE 4.10 release being pushed back 2 - 3 weeks and many base packages updated, the team decided to have one more 'Claire' release. Among updates in this release are KDE 4.9.5, OpenSSL and krb5 stack, sound group, KDE telepathy 0.5.2 to name a few. ISOlinux (the start-up of the live session) received a face-lift, plus booting into existing operating system and Memtest86+ options were added.

KWin, KDE's window manager, in version 4.11 is moving along with being ported to using XCB rather than Xlib...

HP's Open webOS is being ported to a number of devices and over the holiday break one developer set out to get it running on the Nexus 7, with impressive results

The R600 LLVM back-end for the Radeon Gallium3D driver was removed from Mesa...

The end of 2012 is here and over time I think it will be considered a revolutionary moment for open education and open source. A tipping point. A seismic shift. The world has not seen this type of revolution since the early 1400s and the arrival of the printing press.

We're back! It's 2013 and we have three more profiles to share with you in our 30 Linux Kernel Developers in 30 Weeks series. We'll be introducing another series a little later in the year that we hope can further help to illustrate the inspiring community of individuals that build Linux. If you have ideas and/or feedback on these kinds of series, please let us know in the comments section.

More than two years after the previous version, the developers of the open source multi-player shooter Cube 2: Sauerbraten have provided a new major release. The latest version is code-named the "Collect Edition" and includes 45 new maps as well as three new game modes called "collect", "insta collect" and "efficiency collect".

sslh accepts connections on specified ports, and forwards them further based on tests performed on the first data packet sent by the remote client.Probes for HTTP, SSL, SSH, OpenVPN, tinc, XMPP are implemented, and any other protocol that can be tested using a regular expression, can be recognised. A typical use case is to allow serving several services on port 443 (e.g. to connect to ssh from inside a corporate firewall, which almost never block port 443) while still serving HTTPS on that port.

FFmpeg, the cross platform audio-video decode and encode library and tools, has seen a new major release in the form of version 1.1, code-named "Fire Flower". The new release includes an Opus encoder using libopus, 24-bit FLAC encoding, and decoders for various Silicon Graphics formats.

Last week we put together a list of Android tablet apps to help you (or your relatives) outfit the new devices sitting under your trees (or your Festivus poles, if that's more your style.) Ars readers are a helpful bunch, though, and all of you put together a much more extensive list to help jumpstart new tablets. For your benefit, we've rounded up the ones we liked best, sometimes using your own words to argue why you really need to download these apps right now.

Free and open source multiplayer first person shooter game Cube 2: Sauerbraten has received a major update after 2 years.

Using commands under the Import menu, you can pull photos from a variety of sources, including remote servers. The latter functionality in digiKam is provided through the KioExportImport Kipi plugin which supports common protocols like FTP, SSH, and SMB.