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HowTos

today's howtos and leftovers

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Misc
HowTos
  • 26 DNF Command Examples for Package Management (rpm) on Fedora Linux
  • Fixing vim in Debian
  • OxygenOS Android 8.0 Oreo Open Beta Available For OnePlus 3/3T, Here’s How To Set It Up
  • How to Create Hard and Symbolic Links in Linux
  • KDE Plasma 5.11, Humble Bundle Acquisition, elementary OS & Snappy | This Week in Linux Ep.9

    Coming up on This Week in Linux. We take a look at some browser releases and a new crowdfunding project for socializing the command line.

  • Red Hat software and services land on Alibaba Cloud

    With that in mind, Alibaba Cloud, which is the cloud computing arm of eCommerce giant Alibaba Group Holding Ltd., said today that it’s partnering with the open-source software company Red Hat Inc. The alliance sees Alibaba Cloud join the Red Hat Certified Cloud and Service Provider program, which makes it possible for it to offer a range of popular Red Hat products to its customers. These will include the company’s flagship Red Hat Enterprise Linux platform, which will soon be made available via a pay-as-you-go pricing model in the Alibaba Cloud Marketplace.

  • Free software log (September 2017)

    I said that I was going to start writing these regularly, so I'm going to stick to it, even when the results are rather underwhelming. One of the goals is to make the time for more free software work, and I do better at doing things that I record.

    The only piece of free software work for September was that I made rra-c-util compile cleanly with the Clang static analyzer. This was fairly tedious work that mostly involved unconfusing the compiler or converting (semi-intentional) crashes into explicit asserts, but it unblocks using the Clang static analyzer as part of the automated test suite of my other projects that are downstream of rra-c-util.

    One of the semantic changes I made was that the vector utilities in rra-c-util (which maintain a resizable array of strings) now always allocate room for at least one string pointer. This wastes a small amount of memory for empty vectors that are never used, but ensures that the strings struct member is always valid. This isn't, strictly speaking, a correctness fix, since all the checks were correct, but after some thought, I decided that humans might have the same problem that the static analyzer had. It's a lot easier to reason about a field that's never NULL. Similarly, the replacement function for a missing reallocarray now does an allocation of size 1 if given a size of 0, just to avoid edge case behavior. (I'm sure the behavior of a realloc with size 0 is defined somewhere in the C standard, but if I have to look it up, I'd rather not make a human reason about it.)

  • Free Software Efforts (2017W41)

    The issue that was preventing the migration of the Tasktools Packaging Team’s mailing list from Alioth to Savannah has now been resolved.

    Ana’s chkservice package that I sponsored last week has been ACCEPTED into unstable and since MIGRATED to testing.

  • How to define a metrics strategy for your community

    Data sets are everywhere, and because open source communities produce plenty of information in addition to source code, most community infrastructures require tools to support the software development process. Examples include bug-reporting systems such as Jira and Bugzilla, versioning systems such as Git, and code review tools like Gerrit. Although communication also takes place through these tools, most is done through mailing lists, IRC, supporting systems like Discourse, and even Twitter and other social channels (especially for marketing and announcements). In fact, most open source communities utilize at least five or ten tools, if not more.

  • Opensource.com Lightning Talks at All Things Open 2017

    Join the Opensource.com community for a set of amazing lightning talks you won't want to miss during the All Things Open conference in Raleigh, NC. Speakers have five minutes to enlighten the audience about an open source topic they are passionate about. We've got everything from DevOps and Kubernetes, to wearables, cloud, and more. Grab your lunch, find a seat, warm up your Twitter fingers, and get ready for the fastest hour at All Things Open 2017. Share your favorite thoughts using hashtage #ATO2017.

  • LibreOffice: SharePoint integration. A year of progress
  • 4 website maintenance mistakes to avoid

    Maintenance is a good idea for every website, but it's a requirement for websites using open source code. The upside of open source is that everyone can participate. The downside is that means keeping up with everyone's changes. Code gets patched, which causes other code to stop working and need patches in turn. Exploits are found and then blocked. Fancy new features are developed, and your users want them. All of this means you need to keep up! The most important weapon to combat these forces is maintenance. Maintenance is a simple process, but there are basic mistakes that many people make at least once. Avoid these and you'll be well on your way to a safer, cleaner website that isn't a huge pain to keep running.

    [...]

    Even if you could do better, are you being paid to rewrite something that's already mostly working? If you're frustrated enough to take it on as a hobby project, is that what you want to spend your weekend on? GitHub is chock full of not-all-that-unique content management systems (CMSes) and static site builders. Most of them are abandoned, clones of more popular systems, or both. Don't be yet another one.

  • ​Windows Subsystem for Linux graduates in Windows 10 Fall Creators Update
  • Open-source mapping being used to help first responders in Puerto Rico

    Satellite images of rural towns, sprawling woodlands and grooved mountainsides fill the computer screens as homeowners and students scroll across digital maps.

    This group of a few dozen people gathered on Friday at the Perry Castenada Library on the University of Texas at Austin campus for a four-hour disaster relief mapathon to bolster humanitarian efforts in Puerto Rico, where 91 percent of the island is still without electricity, and Mexico, which was ravaged by a 6.1 earthquake.

  • Kotlin Programming Language Will Surpass Java On Android Next Year

    At Google I/O 2017, Google announced the newly added support for Kotlin programming language in Android, along with the existing languages Java and C++. As per the experts, Kotlin came as a breath of fresh air in Android development ecosystem to make “Android development faster and more fun. But, what about the numbers? How many developers are making a shift to Kotlin? Let’s find out.

  • Progress Being Made On New "WebGPU" Web Graphics API

    There continues to be progress made on the new Apple/W3C backed web graphics API dubbed "WebGPU" that has the backing of major stakeholders.

    Separate from the work being done by The Khronos Group on "WebGL-Next" there is the "WebGPU" initiative being organized by the W3C.

today's howtos

Filed under
HowTos
  • ScalaFX: ListView with CellFactory
  • Business accounting with Odoo

    Odoo is, according to Wikipedia, "the most popular open source ERP system." Thus, any survey of open-source accounting systems must certainly take a look in that direction. This episode in the ongoing search for a suitable accounting system for LWN examines the accounting features of Odoo; unfortunately, it comes up a bit short.

    Odoo is the current incarnation of the system formerly known as OpenERP; it claims to have over two million users. It is primarily implemented in Python, and carries the LGPLv3 license. Or, at least, the free part of Odoo is so licensed; Odoo is an open-core product with many features reserved for its online or "Enterprise" offerings. The enterprise version comes with source code, but it carries a proprietary license and an end-user license agreement forbidding users from disabling the "phone home" mechanism that, among other things, enforces limits on the number of users. Online offerings are not of interest for this series, and neither is proprietary software (the whole point is to get away from proprietary systems), so this review is focused on the community edition.

  • TeX Live Manager: JSON output
  • Google App Engine: Using subdomains
  • How to Switch to Xorg from Wayland in Ubuntu 17.10 [Quick Tip]
  • tmux config
  • Secure and flexible backup server with dm-crypt and btrfs

Software and howtos

Filed under
Software
HowTos
  • Weblate 2.17
  • 7 Best eBook Readers for Linux

    Lately, the demand for digital books has increased as people find it more comfortable in reading a book on their handheld devices, Kindle or PC. When it comes to the Linux users, there are various ebook apps that will serve your purpose in reading and organizing your ebook collections.

    In this article, we have compiled seven best ebook readers for Linux. These ebook readers are best suited for pdf, epubs and other ebook formats.

  • How to write/create a Ubuntu .iso to a bootable USB device on Linux using dd command
  • Check disk usage at the command line with du
  • Install Redis and Redis PHP on cPanel
  • Qt 4 and 5 and OpenSSL1.0 removal
  • GLib tools rewrite

    If you’re still stuck with Autotools, though, you may also want to consider dropping glib-genmarshal, and use the FFI-based generic marshaller in your signal definitions — which comes at a small performance cost, but if you’re putting signal emission inside a performance-critical path you should just be ashamed of yourself.

    For enumerations, you could use something like this macro, which I tend to employ in all my projects with just few, small enumeration types, and where involving a whole separate pass at parsing C files is kind of overkill. Ideally, GLib would ship its own version, so maybe it’ll be replaced in a new version.

today's howtos

Filed under
HowTos

How To Protect Your Privacy On Linux

Filed under
Linux
HowTos

It’s easy to have a false sense of security, thinking that other operating system might be more targeted than Linux, but there are plenty of risks and vulnerabilities for all types of Linux devices. Keep your guard up regardless of your OS.

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More in Tux Machines

Ubuntu: New Users, Unity Remix, 18.04 LTS News

  • How to Get Started With the Ubuntu Linux Distro
    The Linux operating system has evolved from a niche audience to widespread popularity since its creation in the mid 1990s, and with good reason. Once upon a time, that installation process was a challenge, even for those who had plenty of experience with such tasks. The modern day Linux, however, has come a very long way. To that end, the installation of most Linux distributions is about as easy as installing an application. If you can install Microsoft Office or Adobe Photoshop, you can install Linux. Here, we’ll walk you through the process of installing Ubuntu Linux 17.04, which is widely considered one of the most user-friendly distributions. (A distribution is a variation of Linux, and there are hundreds and hundreds to choose from.)
  • An ‘Ubuntu Unity Remix’ Might Be on the Way…
    A new Ubuntu flavor that uses the Unity 7 desktop by default is under discussion. The plans have already won backing from a former Unity developer.
  • Ubuntu News: Get Firefox Quantum Update Now; Ubuntu 18.04 New Icon Theme Confirmed
    Earlier this week, Mozilla earned big praises in the tech world for launching its next-generation Firefox Quantum 57.0 web browser. The browser claims to be faster and better than market leader Google Chrome. Now, Firefox Quantum is available for all supported Ubuntu versions from the official repositories. The Firefox Quantum Update is also now available.
  • New Icon Theme Confirmed for Ubuntu 18.04 LTS
    ‘Suru’ is (apparently) going to be the default icon theme in Ubuntu 18.04 LTS. That’s Suru, the rebooted community icon theme and not Suru, the Canonical-created icon theme that shipped on the Ubuntu Phone (and was created by Matthieu James, who recently left Canonical).

OnePlus 5T Launched

  • OnePlus 5T Keeps the Headphone Jack, Introduces Face Unlock and Parallel Apps
    Five months after it launched its OnePlus 5 flagship Android smartphone, OnePlus unveiled today its successor, the OnePlus 5T, running the latest Android 8.0 (Oreo) mobile OS. OnePlus held a live event today in New York City to tell us all about the new features it implemented in the OnePlus 5T, and they don't disappoint as the smartphone features a gorgeous and bright 6.0-inches Optic AMOLED capacitive touchscreen with multitouch, a 1080x2160 pixels resolution, 18:9 ratio, and approximately 402 PPI density. The design has been changed a bit as well for OnePlus 5T, which is made of anodized aluminum.
  • OnePlus 5T Launched: Comes With Bigger Screen, Better Dual Camera, And Face Unlock
    Whenever costly phones like iPhone X or Google Pixel 2 are bashed (here and here) and their alternatives are discussed, OnePlus is always mentioned. In the past few years, the company has amassed a fan base that has found the concept of “Never Settle” impressive.
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Fedora 28 and Fedora 27

  • Fedora 28 Hopes To Improve Linux Laptop Battery Life
    Red Hat's Hans de Goede is spearheading an effort to improve the Fedora battery life of laptops -- and should conserve power too for desktops running Fedora Workstation -- for the current Fedora 28 cycle.
  • Fedora 27 Atomic Host is available on multiple architectures
    The Fedora 27 Atomic Host now supports multiple architectures! Along with the x86_64 architecture, Atomic Host is also available on 64-bit ARM (aarch64) and PowerPC Little Endian (ppc64le). Both aarch64 and ppc64le architectures receive Atomic OSTree updates in the same way x86_64 does.

today's howtos