Pushing the Limits of Network Traffic With Open Source ( 54

An anonymous reader writes: CloudFlare's content delivery network relies on their ability to shuffle data around. As they've scaled up, they've run into some interesting technical limits on how fast they can manage this. Last month they explained how the unmodified Linux kernel can only handle about 1 million packets per second, when easily-available NICs can manage 10 times that. So, they did what you're supposed to do when you encounter a problem with open source software: they developed a patch for the Netmap project to increase throughput. "Usually, when a network card goes into the Netmap mode, all the RX queues get disconnected from the kernel and are available to the Netmap applications. We don't want that. We want to keep most of the RX queues back in the kernel mode, and enable Netmap mode only on selected RX queues. We call this functionality: 'single RX queue mode.'" With their changes, Netmap was able to receive about 5.8 million packets per second. Their patch is currently awaiting review.
Open Source

Linux Foundation: Security Problems Threaten 'Golden Age' of Open Source ( 74

Mickeycaskill writes: Jim Zemlin, executive director of the Linux Foundation, has outlined the organization's plans to improve open source security. He says failing to do so could threaten a "golden age" which has created billion dollar companies and seen Microsoft, Apple, and others embrace open technologies. Not long ago, the organization launched the Core Infrastructure Initiative (CII), a body backed by 20 major IT firms, and is investing millions of dollars in grants, tools, and other support for open source projects that have been underfunded. This was never move obvious than following the discovery of the Heartbleed Open SSL bug last year. "Almost the entirety of the internet is entirely reliant on open source software," Zemlin said. "We've reached a golden age of open source. Virtually every technology and product and service is created using open source. Heartbleed literally broke the security of the Internet. Over a long period of time, whether we knew it or not, we became dependent on open source for the security and Integrity of the internet."

Linus: '2016 Will Be the Year of the ARM Laptop' ( 174

jones_supa writes: Linus Torvalds took the stage at LinuxCon Europe in Dublin, Ireland, and talked about a number of things, including security and the future for Linux on ARM hardware. There is nothing that will blow your mind, but there are a couple of interesting statements nonetheless. Chromebooks are slowly taking over the world, and a large number of those Chromebooks are powered by ARM processors. "I'm happy to see that ARM is making progress. One of these days, I will actually have a machine with ARM. They said it would be this year, but maybe it'll be next year. 2016 will be the year of the ARM laptop," said Linus excitedly. He also explained that one of the problems now is actually finding people to maintain Linux. It's not a glorious job, and it usually entails answering emails seven days a week. Finding someone with the proper set of skills and the time to do this job is difficult.

Debian Dropping Linux Standard Base ( 218

basscomm writes: For years (as seen on Slashdot) the Linux Standard Base has been developed as an attempt to reduce the differences between Linux distributions in an effort significant effort. However, Debian Linux has announced that they are dropping support for the Linux Standard Base due to a lack of interest.

From the article: "If [Raboud's] initial comments about lack of interest in LSB were not evidence enough, a full three months then went by with no one offering any support for maintaining the LSB-compliance packages and two terse votes in favor of dropping them. Consequently, on September 17, Raboud announced that he had gutted the src:lsb package (leaving just lsb-base and lsb-release as described) and uploaded it to the "unstable" archive. That minimalist set of tools will allow an interested user to start up the next Debian release and query whether or not it is LSB-compliant—and the answer will be 'no.'"


Ubuntu Plans To Make ZFS File-System Support Standard On Linux 271

An anonymous reader writes: Canonical's Mark Shuttleworth revealed today that they're planning to make ZFS standard on Ubuntu. They are planning to include ZFS file-system as "standard in due course," but no details were revealed beyond that. However, ZFS On Linux contributor Richard Yao has said they do plan on including it in their kernel for 16.04 LTS and the GPL vs. CDDL license worries aren't actually a problem. Many Linux users have been wanting ZFS on Linux, but aside from the out of tree module there hasn't been any luck in including it in the mainline kernel or with tier-one Linux distributions due to license differences.
Open Source

Matthew Garrett Forks the Linux Kernel 688

jones_supa writes: Just like Sarah Sharp, Linux developer Matthew Garrett has gotten fed up with the unprofessional development culture surrounding the kernel. "I remember having to deal with interminable arguments over the naming of an interface because Linus has an undying hatred of BSD securelevel, or having my name forever associated with the deepthroating of Microsoft because Linus couldn't be bothered asking questions about the reasoning behind a design before trashing it," Garrett writes. He has chosen to go his own way, and has forked the Linux kernel and added patches that implement a BSD-style securelevel interface. Over time it is expected to pick up some of the power management code that Garrett is working on, and we shall see where it goes from there.

Linux Kernel Dev Sarah Sharp Quits, Citing 'Brutal' Communications Style 927

JG0LD writes: A prominent Linux kernel developer announced today in a blog post that she would step down from her direct work in the kernel community. “My current work on userspace graphics enabling may require me to send an occasional quirks kernel patch, but I know I will spend at least a day dreading the potential toxic background radiation of interacting with the kernel community before I send anything,” Sharp wrote. Back in July, 2013 Sarah made a push to make the Linux Kernel Development Mailing List a more civil place.

Vigilante Malware Protects Routers Against Other Security Threats 79

Mickeycaskill writes: Researchers at Symantec have documented a piece of malware that infects routers and other connected devices, but instead of harming them, improves their security. Affected routers connect to a peer-to-peer network with other compromised devices, to distribute threat updates. 'Linux.Wifatch' makes no attempt to conceal itself and even left messages for users, urging them to change their passwords and update their firmware. Symantec estimates 'tens of thousands' of devices are affected and warns that despite Wifatch's seemingly philanthropic intentions, it should be treated with caution.

"It should be made clear that Linux.Wifatch is a piece of code that infects a device without user consent and in that regard is the same as any other piece of malware," said Symantec. "It should also be pointed out that Wifatch contains a number of general-purpose back doors that can be used by the author to carry out potentially malicious actions." There is one simple solution to rid yourself of the malware though: reset your device
Open Source

Linux Foundation Puts the Cost of Replacing Its Open Source Projects At $5 Billion 146

chicksdaddy writes: Everybody recognizes that open source software incredibly valuable, by providing a way to streamline the creation of new applications and services. But how valuable, exactly? The Linux Foundation has released a new research paper that tries to put a price tag on the value of the open source projects it comprises, and the price they've come up with is eye-popping: $5 billion. That's how much the Foundation believes it would cost for companies to have to rebuild or develop from scratch the software residing in its collaborative projects.

To arrive at that figure, the Foundation analyzed the code repositories of each one of its projects using the Constructive Cost Model (COCOMO) to estimate the total effort required to create these projects. With 115,013,302 total lines of source code, LF estimated the total amount of effort required to retrace the steps of collaborative development to be 41,192.25 person-years — or 1,356 developers 30 years to recreate the code base present in The Linux Foundation's current collaborative projects listed above.

What's New In GNOME 3.18 170

prisoninmate writes: In this release, GNOME improves the general user experience for users and new developers alike. GNOME 3.18 adds a feature called "Automatic Brightness," which, when enabled, it will make use of your laptop's light sensor to dim or increase the screen's brightness depending on the surrounding lighting. GNOME 3.18 also improves the touch screen experience, especially when selecting and modifying text, implements a new view in the Nautilus (Files) sidebar, which collects all the remote and internal locations in a single place.

Ask Slashdot: Recommendations For a Reliable Linux Laptop? 237

An anonymous reader writes: I will be looking for a new laptop soon and I'm mostly interested in high reliability and Linux friendliness. I have been using an MSI laptop (with Windows 7) for the last five years as my main workhorse and did not have a single, even minor problem with the hardware nor the OS. It turned out to be a slam-dunk, although I didn't do any particular research before buying it, so I was just lucky. I would like to be more careful this time around, so this is a hardware question: What laptop do you recommend for high reliability with Linux? I will also appreciate any advice on what to avoid and any unfortunate horror stories; I guess we can all learn from those. Anti-recommendations are probably just as valuable, a lesson I learned when an HP laptop I bought (low-end, I admit) turned out to be notoriously fickle when it comes to Linux support. Since our anonymous submitter doesn't specify his budget, it would be good if you specify the price for any specific laptops you recommend.

Ask Slashdot: Herding Cats, Aging Systems? 158

An anonymous reader writes: I've recently started a job at a medium-sized enterprise in the UK. They claimed to be an advocate of open-source. The job was advertised as a Linux sys-admin. I've been in the role a short while and the systems right across the business are end-of-life: lots of XP and 2003 servers, a handful of LAMP web servers, and a large IT department with almost no skills in the technologies on site. Most boxes have the default password still. As a senior techie, I've been tasked with helping bring the skillset of the rest of the staff up. Where would you start, given that most of the kit is EoL?
Linux Business

Thanks To Valve, More Than 1,500 Games Are Now On Linux 281

An anonymous reader writes: The Steam Store crossed the threshold this morning of having 1,500 games natively available for Linux. Timberman, a 0.99$ video game was the 1,500th title, but while there are a lot of indie games available for Linux, in the past three years have been a number of high profile AAA Linux games too. What games (old or new, free or paid) would you like to see available for Linux systems?

Microsoft Has Built a Linux Distro 282

jbernardo writes: Microsoft has built a Linux distro, and is using it for their Azure data centers. From their blog post: "It is a cross-platform modular operating system for data center networking built on Linux." Apparently, the existing SDN (Software Defined Network) implementations didn't fit Microsoft's plans for the ACS (Azure Cloud Switch), so they decided to roll their own infrastructure. No explanation why they settled on Linux, though — could it be that there is no Windows variant that would fit the bill? In other news, Lucifer has been heard complaining of the sudden cold.

Linux 4.3 Bringing Stable Intel Skylake Support, Reworked NVIDIA Driver 93

An anonymous reader writes: Mr. Torvalds has released Linux 4.3-rc1 this weekend. He characterized the release as "not particularly small — pretty average in size, in fact. Everything looks fairly normal, in fact, with about 70% of the changes being drivers, 10% architecture updates, and the remaining 20% are spread out." There are a number of new user-facing features including stabilized Intel "Skylake" processor support, initial AMD R9 Fury graphics support, SMP scheduler optimizations, file-system fixes, a reworked open-source NVIDIA driver, and many Linux hardware driver updates.

Ask Slashdot: Linux-Based Home Security 212

Grady Martin writes: I got a new job. Everything about it is perfect, except for one thing: The overwhelming majority of affordable housing within driving distance lies in an area known for its high crime rate. A home security system would afford some peace of mind, and a system whose code I could tinker with would afford even more. What Linux-based options are available? What experience do you have with such systems?
Open Source

Ask Slashdot: Synchronizing Sound With Video, Using Open Source? 103

An anonymous reader writes: I have a decent video camera, but it lacks a terminal for using an external mic. However, I have a comparatively good audio recorder. What I'd like to do is "automagically" synchronize sound recorded on the audio recorder with video taken on the video camera, using Free / Open Source software on Linux, so I can dump in the files from each, hit "Go," and in the end I get my video, synched with the separately recorded audio, in some sane file format. This seems simple, but maybe it isn't: the 800-pound gorilla in the room is PluralEyes, which evidently lots of people pay $200 for --and which doesn't have a Linux version. Partly this is that I'm cheap, partly it's that I like open source software for being open source, and partly it's that I already use Linux as my usual desktop, and resent needing to switch OS to do what seems intuitively to be a simple task. (It seems like something VLC would do, considering its Swiss-Army-Knife approach, but after pulling down all the menus I could find, I don't think that's the case.) I don't see this feature in any of the Open Source video editing programs, so as a fallback question for anyone who's using LiVES, KDEnlive, or other free/Free option, do you have a useful workflow for synching up externally recorded sound? I'd be happy even to find a simple solution that's merely gratis rather than Free, as long as it runs on Ubuntu.

Ask Slashdot: What Windows-Only Apps Would You Most Like To See On Linux? 889

An anonymous reader writes: With all the recent brouhaha about Windows 10 privacy violations and forced updates, I'm one of those that wants to thank Microsoft very gently, while taking it by the hand, and slamming the door behind it for good. Fortunately for me, I don't use any special software that is tied to Windows, except games, of course. One program I would really miss though is Total Commander file manager, which is basically my interface to the whole OS. So, I know there are Linux alternatives, but which one is the best? Also, I currently use PaleMoon fork of Firefox as my main browser, but there doesn't seem to be a Linux variant. What other software would you want to transplant to Linux, if any?

Debian Working on Reproducible Builds To Make Binaries Trustable 130

An anonymous reader writes: Debian's Jérémy Bobbio, also known as Lunar, spoke at the Chaos Communication Camp about the distribution's efforts to reassert trustworthiness for open source binaries after it was brought into question by various intelligence agencies. Debian is "working to bring reproducible builds to all of its more than 22,000 software packages," and is pushing the rest of the community to do the same. Lunar said, "The idea is to get reasonable confidence that a given binary was indeed produced by the source. We want anyone to be able to produce identical binaries from a given source (PDF)."

Here is Lunar's overview of how this works: "First you need to get the build to output the same bytes for a given version. But others also must to be able to set up a close enough build environment with similar enough software to perform the build. And for them to set it up, this environment needs to be specified somehow. Finally, you need to think about how rebuilds are performed and how the results are checked."

Shuttleworth Says Snappy Won't Replace .deb Linux Package Files In Ubuntu 15.10 232

darthcamaro writes: Mark Shuttleworth, BDFL of Ubuntu is clearing the air about how Ubuntu will make use of .deb packages even in an era where it is moving to its own Snappy ('snaps') format of rapid updates. Fundamentally it's a chicken and egg issue. From the serverwatch article: "'We build Snappy out of the built deb, so we can't build Snappy unless we first build the deb,' Shuttleworth said. Going forward, Shuttleworth said that Ubuntu users will still get access to an archive of .deb packages. That said, for users of a Snappy Ubuntu-based system, the apt-get command no longer applies. However, Shuttleworth explained that on a Snappy-based system there will be a container that contains all the deb packages. 'The nice thing about Snappy is that it's completely worry-free updates,' Shuttleworth said."