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Interviews

Linux Foundation Certified Engineer: Francisco Tsao

Filed under
Linux
Interviews

n 1998, I got bored by the MS-DOS/Windows world. I was studying Civil Engineering, but in the neighborhood of my school was the Faculty of Computer Science, and I had some friends there. I began hearing about GNU/Linux from them. I bought a new computer and spent a weekend installing Debian 2.0 and, after a week, I had a graphical interface running on the box. The same year, I joined GPUL the Coruña Linux Users Group, where I learned a lot about tech and Free Software philosophy. Richard Stallman’s "The Right To Read" changed my life definitely. I'm very proud of my LUG (one that is still very much alive). In fact, this year we hosted the Akademy!

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The state of container security

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Server
Interviews
Security

This is a gross over-simplification, but multiple containers on a host is just the next logical step from multiple virtual machines on a host. Because those containers are tightly controlled by the kernel namespaced, Security Enhanced Linux, Linux kernel capabilities, and the like, you can be assured that the risk is minimal.

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How Kubernetes is helping Docker blossom

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Server
Interviews
OSS

Kubernetes and Docker are the latest buzz words in the IT sector. Businesses and IT enthusiasts alike are clamoring to learn more about containerization.

I managed to grab Red Hat software analyst Jason Brooks, who will be speaking at SCaLE 14x about Kubernetes, to ask him a few questions about the software and container movement.

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Young maker talks software defined radio, open source, and mentors

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Interviews
OSS

Schuyler St. Leger is one of the superheroes of the maker movement. He's a speaker, young maker, and was featured in Make magazine. His famous presentation, Why I love my 3-D Printer has received over 300,000 views on YouTube.

Schuyler is keynoting at SCaLE 14x, where he'll talk about open source radio and how it's impacting the world around us. We're surrounded by radios in smartphones, tablets, laptops, and Wi-Fi access points, yet we often fail to realize their ubiquitous presence. The airwaves are a fantastic space for exploration, but where do we begin? Open source radio combined with open hardware is a rich space for exploration and experimentation.

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Using strace to track system calls in Linux

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Linux
Interviews

Strace is a tool used to intercept system calls from your application to the Linux kernel. I find strace is invaluable for system administrators for two main reasons.

First off, we do not always have the source code of an application available, but we may still need to know what an application is doing. This can be anything from which files are opened, how much memory is being allocated or even why an application is crashing repeatedly.
Secondly, even if we do have the code, being a system administrator doesn't imply being a developer. We may not know how to follow the code. I find that looking at system calls as opposed to lines of code is a bit more descriptive

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ScyllaDB: Cassandra compatibility at 1.8 million requests per node

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Linux
Interviews
OSS

I have been involved with Linux and open source since the mid-1990s, and Scylla is a natural progression for open source to move up the stack and provide more value for some of the most demanding companies out there. The problems involved in running a resilient database are some of the hardest and most valuable in IT today.

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3 smart GIMP tricks

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GNU
Interviews

Honestly, I think a lot of the people claiming GIMP isn't as good as Photoshop are people who have invested a lot in learning Photoshop and want an excuse not to learn a new and different tool. If the GIMP team spent much time trying to make everything just like Photoshop, they'd never have time to implement great new features.

It's true there are some nice features Photoshop has that GIMP doesn't. Some are being addressed for GIMP 3.0, like high-color images. A lot of people will be very happy to see that. Other features, like non-destructive editing and CMYK, are still wish-list items that will have to wait until later.

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Linux Foundation Scholarship Recipient: Vaishali Thakkar

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Linux
Interviews

The Linux Foundation’s Training Scholarship Program has awarded 34 scholarships totaling more than $100,000 in free training to students and professionals during the past five years. In this series, we are featuring recent scholarship recipients with the hope of inspiring others.

Vaishali Thakkar is a scholarship recipient in the Kernel Guru category. She lives in India and recently completed an Outreachy internship on project Coccinelle. The goal of her project was replacing out-of-date API uses and deprecated functions and macros in the Linux kernel with more modern equivalents. She began contributing to the Linux kernel almost a year ago, and her first contribution was running a Coccinelle semantic patch over staging directory files. She says the excitement of having that first patch accepted was amazing, and she hopes some day to have her dream job of “Linux Kernel Engineer.”

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More kernel/Linux: Linux Update Improves Processor Support

Participate in the 2016 ODL User Survey

Brian Proffitt: How do you Fedora?

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Red Hat
Interviews

Brian has been involved with Linux for a long time. In the summer of 1999, he was asked to write a book about Sun StarOffice 5.1 for Linux. This was a challenge for Brian as he had never run Linux before. “I got a hold of a Caldera OpenLinux CD set and installed it on a friend’s spare PC.” He was hooked on Linux when he was able to play an in-memory game of Tetris while the operating system was being installed.

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Open source communities need mentors

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Interviews
OSS

To me it seems a natural pairing because they are two things I am passionate about and things that I do and use every single day. So many of the principles of open source correlate with the positive outcomes most desired for children: collaboration, participation, and transparency (honesty, integrity, openness). For children who are interested in how things work, open source software can give them that behind-the-scenes peek. I love teaching children about open source because there are so many ways they can get their hands dirty and get involved in communities and meet people who share their particular interests. There are many projects that were developed with children in mind, like the great work done by Sugar Labs.

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More in Tux Machines

Leftovers: Ubuntu

  • Budgie-Remix Makes Progress With Ubuntu 16.10 Base, Beta 2 Released
    Budgie-Remix, the unofficial Ubuntu spin making use of the Budgie Desktop, has released its 16.10 Beta 2 milestone following this week's Yakkety Yak Beta 2 release. Budgie-Remix is re-based to the latest Ubuntu 16.10 Yakkety package changes. In addition, a number of the Budgie-0Remix packages have been working their way into Debian proper and thus are available to Ubuntu 16.10 users via the official channels. Now available this way is the budgie-desktop package, Moka icon theme, Faba icon theme, and the Arc theme. The Ubuntu repository has also pulled in the Budgie artwork and wallpaper packages too.
  • Yakkety Yak Final Beta Released
  • Canonical Launches Commercial Support for Kubernetes
    Canonical, the lead commercial vendor behind the open-source Ubuntu Linux operating system, is getting into the Kubernetes market. Canonical now offers a freely available implementation of Kubernetes as well as commercial-support options. "I have no doubt that Kubernetes will be one of the major container co-ordination systems," Mark Shuttleworth, founder of Ubuntu, told ServerWatch.
  • [How To] Build an Ubuntu Controlled Sous-Vide Cooker
    I’ll be honest with you from the off: I had zero idea what sous-vide cooking was before I started writing this post. Wikipedia dutifully informs me that’s Sous-Vide is a style of cooking that involves a vacuum, bags, and steam.
  • Mintbox Mini Pro Linux Mini PC Launches For $395
    This week a new version of the popular Mintbox Mini Linux PC has been launched for $395 in the form of the Mintbox Mini Pro which is now equipped with 120 GB of SSD mSATA together with 64-bit AMD A10-Micro6700T system-on-a-chip with Radeon R6 graphics and features 8GB of DDR3L. The latest Mintbox Mini Pro is shipped preloaded with the awesome Linux Mint 18 operating system and includes a microSD card slot a serial port, and a micro SIM card reader. The new Mintbox Mini Pro is the same size as the original and measures 4.3 x 3.3 x 0.9 inches in size and weighs in at around 255g. The Linux mini PC incorporates a fanless design and features an all-metal case made of aluminium and zinc.

Leftovers: OSS and Sharing

  • Minijail: Running Untrusted Programs Safely by Jorge Lucangeli Obes, Google
  • Minijail: Google’s Tool To Safely Run Untrusted Programs
    Google’s Minijail sandboxing tool could be used by developers and sysadmins to run untrusted programs safely for debugging and security checks, according to Google Software Engineer Jorge Lucangeli Obes, who spoke last month at the Linux Security Summit. Obes is the platform security lead for Brillo, Google's Android-based operating system for Internet-connected devices. Minijail was designed for sandboxing on Chrome OS and Android, to handle “anything that the Linux kernels grew.” Obes shared that Google teams use it on the server side, for build farms, for fuzzing, and pretty much everywhere. Since “essentially one bug separates you and any random attacker,” Google wanted to create a reliable means to swiftly identify problems with privileges and exploits in app development and easily enable developers to “do the right thing.” The tool is designed to assist admins who struggle with deciding what permissions their software actually needs, and developers who are vexed with trying to second guess which environment the software is going to run in. In both cases, sandboxing and privilege dropping tends to be a hit or miss affair. Even when developers use the privilege dropping mechanisms provided by the Linux kernel, sometimes things go awry due to numerous pitfalls along that path. One common example Obes cited was trying to ride a switch user function that will drop-root and then forgetting to check the result of the situation relief, or setuid function, afterwards.
  • Intel and Cloudera Give Apache an Open Source Data/Security Tool
    For the past year, we've taken note of the many Big Data projects that the Apache Software Foundation has been elevating to Top-Level Status. The organization incubates more than 350 open source projects and initiatives, and has squarely turned its focus to Big Data and developer-focused tools in recent months. As Apache moves Big Data projects to Top-Level Status, they gain valuable community support. Recently, the foundation announced that Apache Kudu has graduated from the Apache Incubator to become a Top-Level Project (TLP). Kudu is an open source columnar storage engine built for the Apache Hadoop ecosystem designed to enable flexible, high-performance analytic pipelines. And, Apache Twill has graduated as well. Twill is an abstraction over Apache Hadoop YARN that reduces the complexity of developing distributed Hadoop applications, allowing developers to focus more on their application logic. In another Apache-related Big Data move, Cloudera and Intel have announced that they've contributed a new open-source project to the Apache Software Foundation targeted at using Big Data analytics and machine learning for cybersecurity.
  • Twitter Open Sources Stream Processing Engine Heron
    Twitter announced the open sourcing of Heron, a stream-processing engine that is a successor to Apache Storm. Heron is backwards compatible with Apache Storm, which eases its adoption amongst developers. Heron has replaced Apache Storm as the stream data processing engine inside Twitter due to its scalability, debug-ability, ability to work in a shared cluster infrastructure and better performance. A comprehensive list of features is listed in the documentation.
  • Tencent: Transforming Networks with SDN
    “SDN can really transform the way we do networks,” said Tom Bie, VP of Technology & Operation of Data Center, Networking and Server, Tencent, during his Wednesday keynote address at the Open Daylight Summit. The China telecom giant should know about the issues of massive scale networks: they have more than 200 million users for QQ instant messaging, 300 million users of their payment service, and more than 800 million users of their VChat service. Bie noted that Tencent also operates one of the largest gaming networks in the world, along with video services, audio services, online literature services, news portals, and a range other digital content services.
  • The Second Wave of Platforms, an Interview with Cloud Foundry’s Sam Ramji
    In today’s world of platforms, services are increasingly connected. In the past, PaaS offerings were pretty much isolated. It’s that new connected infrastructure that is driving the growth of Cloud Foundry, the open source, service-oriented platform technology. Sam Ramji is CEO of Cloud Foundry, which is holding its European event in Frankfurt this week. At the conference, we spoke with Ramji to discuss, among other topics:
  • How to Find Your First OpenStack Job
  • LibreOffice 5.2.2 Now Available to Download
  • EC approves Slovenia courts data exchange solution
    First CEF AS4-compliant b2b solution developed as open source by a public administration The European Commission has tested and approved Laurentius, an eDelivery court documents and case exchange solution compliant with the AS4 profile of the OASIS ebMS standard. In September, Laurentius passed all tests by the EC’s Connecting Europe Facility (CEF) for its so-called “e-SENS AS4 conformant solutions”.
  • SDL 2.0.5 Is Readying For Release: Relative Mouse Mode For Wayland/Mir, Audio Capture
    SDL 2.0 point releases have ranged from being a few months apart to as much as two years apart. Fortunately, SDL 2.0.5 is now being put together for release just nine months after SDL 2.0.4. With the Mercurial repository, Sam Lantinga bumped the version in preparation for the SDL 2.0.5 release. The SDL 2.0.5 release hasn't officially happened yet, but it should be here soon.
  • Open standards default at Slovenia supreme court
    The use of open ICT standards is an IT requirement at Slovenia’s Supreme Court, responsible for the IT support of the entire court system in the country. The Supreme Court’s IT department has a strong preference for the development of modular, reusable software solutions. This strategy provides agility and flexibility, says Bojan Muršec, director of IT. The focus on open standards frees up the IT department to concentrate on the business, Muršec says. The IT department takes the modular approach serious: the first reusable module ever developed by the court - a court documents dispatch and delivery system - is re-used by all IT systems across the courts. “Making everything reusable prevents creation of silos in the organisation”, the IT director says. A positive side effect of the IT strategy is that the court uses mostly open source software solutions. This in turn helps to keep IT costs down, says the IT director, who estimates that the court saves EUR 400 to 500 thousand per year on licence fees: “The cost of proprietary licences always goes up.”
  • Why there is no CSS4 - explaining CSS Levels
    We had CSS1, and CSS2. We even had CSS2.1 and we then moved onto CSS3 – or did we? This post is a quick explanation of how CSS is versioned today. CSS versions 1 and 2 were monolithic specifications. All of CSS was included in one massive document. Selectors, positioning, colour – it was all in there. The problem with monolithic specifications is that in order to finish the spec, every component part also has to be finished. As CSS has grown in complexity, and new features are added, it doesn’t make sense to draw a line at which all work is stopped on all parts of CSS in order to declare that CSS version finished. Therefore, after CSS2.1 all the things that had been part of the 2.1 specification were broken down into modules. As the new CSS modules included all that had gone before plus any new features, they all came into being at Level 3. Hence CSS3, and people like me who understood CSS as a single specification referred to the group of Level 3 modules as “CSS3”.

Security Leftovers

  • Linux.Mirai Trojan causing mayhem with DDoS attacks
    A Trojan named Linux.Mirai has been found to be carrying out DDoS attacks. The malicious program first appeared in May 2016, detected by Doctor Web after being added to its virus database under the name Linux.DDoS.87. The Trojan can work with with the SPARC, ARM, MIPS, SH-4, M68K architectures and Intel x86 computers.
  • Don't Hide DRM in a Security Update
    Over 10,000 of you have joined EFF in calling on HP to make amends for its self-destructing printers in the past few days. Looks like we got the company’s attention: today, HP posted a response on its blog. Apparently recognizing that its customers are more likely to see an update that limits interoperability as a bug than as a feature, HP says that it will issue an optional firmware update rolling back the changes that it had made. We’re very glad to see HP making this step. But a number of questions remain. First, we’d like to know what HP’s plans are for informing users about the optional firmware update. Right now, the vast majority of people who use the affected printers likely do not know why their printers lost functionality, nor do they know that it’s possible to restore it. All of those customers should be able to use their printers free of artificial restrictions, not just the relatively few who have been closely following this story.
  • 6 Ways Driverless Cars Are Going To Kill Lots Of People
    You've probably read a few articles about driverless cars over the past couple of years. The technology is coming along quickly, with fleets of test cars already on the roads in some states. It seems like soon we'll achieve the American dream of stuffing our faces and texting all we want while still managing to avoid public transportation. But the reality is quite different. We're diving into this technology a little too quickly and ignoring all the warning signs about how we are going to screw up on the way to Driverless Car Utopia.

Red Hat and Fedora

  • Red Hat Inc. (RHT) Downgraded by Zacks Investment Research to “Hold”
  • Earnings Estimate Report: Intel Corporation (NASDAQ:INTC) , Red Hat, Inc. (NYSE:RHT)
  • Switched to HTTPS
    Perhaps you already noticed it, I have switched all the sites for a secured browsing using HTTPS. So, new addresses are: https://blog.remirepo.net/ for this Blog (with an automatic and permanent redirection) https://forum.remirepo.net/ for the Forum (with an automatic and permanent redirection) https://rpms.remirepo.net/ for the Repository, but classical address stay available.
  • Fedora Hubs: Getting started
    Fedora Hubs provides a consistent contributor experience across all Fedora teams and will serve as an “intranet” page for the Fedora Project. There are many different projects in Fedora with different processes and workflows. Hubs will serve as a single place for contributors to learn about and contribute to them in a standardized format. Hubs will also be a social network for Fedora contributors. It is designed as one place to go to keep up with everything and everybody across the project in ways that aren’t currently possible.