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Software

today's howtos and software leftovers

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Software
HowTos

The best editor for PHP developers who work in Linux OS

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Development
Software

Every programmer knows that coding is fun! Don't you agree with me? However, to be an absolutely professional PHP developer, we have to know a lot about all the specific details of coding.

Selecting the editor you are going to use to happily code is not an easy decision and must be taken unhurriedly.

If you are a beginner, you may try a great code editor with a rich functionality and very flexible customization which is known as Atom Editor, the editor of the XXI century. You may say that we have many pretty alternatives available. Read the explanation below, and the introduced information will knock you off!

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Cozy Is A Nice Linux Audiobook Player For DRM-Free Audio Files

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Software

You could use any audio player to listen to audiobooks, but a specialized audiobook player like Cozy makes everything easier, by remembering your playback position and continuing from where you left off for each audiobook, or by letting you set the playback speed of each book individually, among others.

The Cozy interface lets you browse books by author, reader or recency, while also providing search functionality. Books front covers are supported by Cozy - either by using embedded images, or by adding a cover.jpg or cover.png image in the book folder, which is automatically picked up and displayed by Cozy.

When you click on an audiobook, Cozy lists the book chapters on the right, while displaying the book cover (if available) on the left, along with the book name, author and the last played time, along with total and remaining time:

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Variety Wallpaper Changer And Downloader 0.7.0 Ported To Python 3, Adds Support For Settings GDM Background

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Development
Software

A new major version of Variety Wallpaper Changer is out. With the latest 0.7.0 release, Variety was ported to Python 3, while also receiving some improvements like support for setting the Gnome Screensaver / GDM background to match the desktop wallpaper.

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10 Free Open Source Tools for Creating Your Own VPN

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Software
Security

As more people use the Internet everyday they are becoming more conscious about their privacy with regards to how much of the information they don’t want to share at all is being compromised. Tons of VPN services have been created to solidify users’ safety but that doesn’t seem to be enough as there seems to be an increasing need to create custom VPNs.

It isn’t a bad thing to create a VPN service for yourself and there are actually a good number of developers and organizations that favour this habit.

Today, we bring you a list of the best open-source tools that you can use to create your own VPN. Some of them are relatively more difficult to set up and use than the others and they all have their feature highlights.

Depending on the reason why you want to deploy your own VPN, choose the title that is suitable for you.

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Software: SMPlayer, FOSS and Peek

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Software
  • SMPlayer Makes It Easy to Stream Videos from Your PC to Android Phone

    The handy feature means you can watch video on your computer from your phone with minimal effort as no uploading, no downloading, and no subscriptions are required.

    All you need to stream is the latest version of SMPlayer (v15.6) on your Windows, Mac or Linux desktop, plus an Android phone (or tablet) with a compatible media player, like MX Player or VLC for Android, installed.

  • The best open source alternatives to your everyday apps

    There are many compelling reasons to use open source software, where the code behind an app is free for anyone to view or contribute to. There's the obvious benefit that it's free to use. It's arguably more secure (thanks to the many eyes on the source code). It's built solely for the benefit of users. And it may have ethical appeal over an app built by, say, a multinational corporation. This in mind, here are 10 of the best open source alternatives to the software we use on our computers every day.

  • peek – animated GIF screen recorder

    I’m always on the look out for small indispensable utilities that make the Linux experience even better. This week, I’m seeking to garnish support for peek. It’s an unpretentious utility written in Vala. The utility has no delusion of grandeur. But it has qualities that carves out its own niche in the open source world.

    Peek is designed to make short screencasts. It’s not a general purpose screencast application like OBS Studio. Instead, peek captures silent screencasts of part of the screen. Examples of its usage including demonstrating user interface features of software, or creating a visual bug report. The software supports recording in GIF, APNG, WebM and MP4 formats.

Software and howtos

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Software
HowTos
  • 7 Top free & open source web hosting control panel (Cpanel)

    Setting up a website is not an easy task especially when you have to maintain multiple websites including databases and other files. Its become more hectic, when you go for VPS servers or Cloud hosting those are not more than a just bare server machine with some Linux operating system such as CentOS or Ubuntu. Those are website developers or familiar to how to up and run a website on Linux server definitely looking for some kind of free & open source tools to manage a website’s hosting backend.

    To solve such situations we have web hosting control panels or admin panels software those comes really handy and helps to get rid of the command interface for setting up each and everything.

  • Gavi's Song sheet music with TuxGuitar and LilyPond

    A year or two ago I bought Lindsey Stirling’s Album Brave Enough. It’s wonderful all around, but I really fell in love with Gavi’s Song.

    Three weeks ago I took a stab at playing this on my guitar. It’s technically not actually that difficult – After listening to the original and trying to repeat it for several days, I can now actually play through it without too many hiccups (still far from being YouTube’able, though). At least the first two thirds – but what I have is enough to get the feeling across, and it has a proper ending.

  • How to Increase File Upload Size in PHP
  • Simple guide to install PostGreSQL on Ubuntu
  • Combating article theft by delaying RSS feeds

Software: Release of Foundry, Ducktype, AION Wallet

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Software
  • Release of Foundry (previously known as rlife) 0.2.0

    These past weeks, I’ve been working a lot on my side project and I’ve made a new release of it. First of all, the project has been renamed “Foundry” (instead of “rlife”). I wanted to find a better name for this project and as this project is now actually based on Vulkan (that was my primary objective when I started it), I thought it would be a good idea to give a name related to it. Plus, there was no crates already named “Foundry”.

  • Ducktype parser extensions

    When designing Ducktype, I wanted people to be able to extend the syntax, but I wanted extensions to be declared and defined, so we don’t end up with something like the mess of Markdown flavors. So a Ducktype file can start with a @ducktype/ declaration that declares the version of the Ducktype syntax and any extensions in use. For example:

  • AION Blockchain System Releases Desktop Wallets With Windows, Mac & Linux Compatibility

    AION has finally released its Desktop wallets; the product is Linux, Wndows and Mac compatible. The AION wallet underwent thorough tests and audits both internally and externally to have this milestone released for users. AION’s wallet is built for storing the AION altcoin as is the move by most of its peer competitors within the crypto space.

DXVK 0.72 and Wine 3.16

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Software

8 Lesser Known Yet Awesome Text Editors

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Software

One of the strengths of Linux is the huge range of software. That is, after all, one of the reasons why users are attracted to Linux in the first place. Having the opportunity to select from a plethora of software and select the ones that meet an individual’s needs still makes good sense. Having hundreds of open source text editors, file managers, integrated development environments, backup tools, databases, web browsers, FTP clients increases the likelihood of applications existing that really do what a user wants. Further, even where a developer only reinvents the wheel by creating a very simple application, it is still a valuable learning experience, and from these little acorns, mighty oaks may grow.

Irrespective of the operating system used, the text editor is one of those quintessential applications for many users. A text editor is software used for editing plain text files. Text editors are used to write programming code, change configuration files, take notes, and more. For this feature, we wanted to select alternative text editors which are definitely worth trying but may have been missed given that they receive less coverage in Linux publications, and are not included or installed by default in many Linux distributions.

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Red Hat's "DevOps" Hype Again and Analysis of last Night's Financial Results

OSS Leftovers

  • Deutsche Telekom and Aricent Create Open Source Edge Software Framework
    Deutsche Telekom and Aricent today announced the creation of an Open Source, Low Latency Edge Compute Platform available to operators, to enable them to develop and launch 5G mobile applications and services faster. The cost-effective Edge platform is built for software-defined data centers (SDDC) and is decentralized, to accelerate the deployment of ultra-low latency applications. The joint solution will include a software framework with key capabilities for developers, delivered as a platform-as-a-service (PaaS) and will incorporate cloud-native Multi-access edge computing (MEC) technologies.
  • A Deeper Look at Sigma Prime's Lighthouse: An Open-Source Ethereum 2.0 Client
  • Notable moments in Firefox for Android UA string history
  • Dweb: Creating Decentralized Organizations with Aragon
    With Aragon, developers can create new apps, such as voting mechanisms, that use smart contracts to leverage decentralized governance and allow peers to control resources like funds, membership, and code repos. Aragon is built on Ethereum, which is a blockchain for smart contracts. Smart contracts are software that is executed in a trust-less and transparent way, without having to rely on a third-party server or any single point of failure. Aragon is at the intersection of social, app platform, and blockchain.
  • LLVM 7.0.0 released
  • Parabola GNU/Linux-libre: Boot problems with Linux-libre 4.18 on older CPUs
    Due to a known bug in upstream Linux 4.18, users with older multi-core x86 CPUs (Core 2 Duo and earlier?) may not correctly boot up with linux-libre 4.18 when using the default clocksource.
  • Visual Schematic Diffs in KiCAD Help Find Changes
    In the high(er)-end world of EDA tools like OrCAD and Altium there is a tight integration between the version control system and the design tools, with the VCS is sold as a product to improve the design workflow. But KiCAD doesn’t try to force a version control system on the user so it doesn’t really make sense to bake VCS related tools in directly. You can manage changes in KiCAD projects with git but as [jean-noël] notes reading Git’s textual description of changed X/Y coordinates and paths to library files is much more useful for a computer than for a human. It basically sucks to use. What you really need is a diff tool that can show the user what changed between two versions instead of describe it. And that’s what plotgitsch provides.

LWN's Latest (Today Outside Paywall) Articles About the Kernel, Linux

  • Toward better handling of hardware vulnerabilities
    From the kernel development community's point of view, hardware vulnerabilities are not much different from the software variety: either way, there is a bug that must be fixed in software. But hardware vendors tend to take a different view of things. This divergence has been reflected in the response to vulnerabilities like Meltdown and Spectre which was seen by many as being severely mismanaged. A recent discussion on the Kernel Summit discussion list has shed some more light on how things went wrong, and what the development community would like to see happen when the next hardware vulnerability comes around. The definitive story of the response to Meltdown and Spectre has not yet been written, but a fair amount of information has shown up in bits and pieces. Intel was first notified of the problem in July 2017, but didn't get around to telling anybody in the the Linux community about it until the end of October. When that disclosure happened, Intel did not allow the community to work together to fix it; instead each distributor (or other vendor) was mostly left on its own and not allowed to talk to the others. Only at the end of December, right before the disclosure (and the year-end holidays), were members of the community allowed to talk to each other. The results of this approach were many, and few were good. The developers charged with responding to these problems were isolated and under heavy stress for two months; they still have not been adequately thanked for the effort they put in. Many important stakeholders, including distributions like Debian and the "tier-two" cloud providers, were not informed at all prior to the general disclosure and found themselves scrambling. Different distributors shipped different fixes, many of which had to be massively revised before entry into the mainline kernel. When the dust settled, there was a lot of anger left simmering in its wake.
  • Writing network flow dissectors in BPF
    Network packet headers contain a great deal of information, but the kernel often only needs a subset of that information to be able to perform filtering or associate any given packet with a flow. The piece of code that follows the different layers of packet encapsulation to find the important data is called a flow dissector. In current Linux kernels, the flow dissector is written in C. A patch set has been proposed recently to implement it in BPF with the clear goal of improving security, flexibility, and maybe even performance.
  • Coscheduling: simultaneous scheduling in control groups
    The kernel's CPU scheduler must, as its primary task, determine which process should be executing in each of a system's processors at any given time. Making an optimal decision involves juggling a number of factors, including the priority (and scheduling classes) of the runnable processes, NUMA locality, cache locality, latency minimization, control-group policies, power management, overall fairness, and more. One might think that throwing another variable into the mix — and a complex one at that — would not be something anybody would want to attempt. The recent coscheduling patch set from Jan Schönherr does exactly that, though, by introducing the concept of processes that should be run simultaneously. The core idea behind coscheduling is the marking of one or more control groups as containing processes that should be run together. If one process in a coscheduled group is running on a specific set of CPUs (more on that below), only processes from that group will be allowed to run on those CPUs. This rule holds even to the point of forcing some of the CPUs to go idle if the given control group lacks runnable processes, regardless of whether processes outside the group are runnable. Why might one want to do such a thing? Schönherr lists four motivations for this work, the first of which is virtualization. That may indeed be the primary motivation, given that Schönherr is posting from an Amazon address, and Amazon is rumored to be running a virtualized workload or two. A virtual machine usually contains multiple processes that interact with each other; these machines will run more efficiently (and with lower latencies) if those processes can run simultaneously. Coscheduling would ensure that all of a virtual machine's processes are run together, maximizing locality and minimizing the latencies of the interactions between them.
  • Machine learning and stable kernels
    There are ways to get fixes into the stable kernel trees, but they require humans to identify which patches should go there. Sasha Levin and Julia Lawall have taken a different approach: use machine learning to distinguish patches that fix bugs from others. That way, all bug-fix patches could potentially make their way into the stable kernels. Levin and Lawall gave a talk describing their work at the 2018 Open Source Summit North America in Vancouver, Canada. Levin began with a quick introduction to the stable tree and how patches get into it. When a developer fixes a bug in a patch they can add a "stable tag" to the commit or send a mail to the stable mailing list; Greg Kroah-Hartman will then pick up the fix, evaluate it, and add it to the stable tree. But that means that the stable tree is only getting the fixes that are pointed out to the stable maintainers. No one has time to check all of the commits to the kernel for bug fixes but, in an ideal world, all of the bug fixes would go into the stable kernels. Missing out on some fixes means that the stable trees will have more security vulnerabilities because the fixes often close those holes—even if the fixer doesn't realize it.
  • Trying to get STACKLEAK into the kernel
    The STACKLEAK kernel security feature has been in the works for quite some time now, but has not, as yet, made its way into the mainline. That is not for lack of trying, as Alexander Popov has posted 15 separate versions of the patch set since May 2017. He described STACKLEAK and its tortuous path toward the mainline in a talk [YouTube video] at the 2018 Linux Security Summit. STACKLEAK is "an awesome security feature" that was originally developed by The PaX Team as part of the PaX/grsecurity patches. The last public version of the patch set was released in April 2017 for the 4.9 kernel. Popov set himself on the goal of getting STACKLEAK into the kernel shortly after that; he thanked both his employer (Positive Technologies) and his family for giving him working and free time to push STACKLEAK. The first step was to extract STACKLEAK from the more than 200K lines of code in the grsecurity/PaX patch set. He then "carefully learned" about the patch and what it does "bit by bit". He followed the usual path: post the patch, get feedback, update the patch based on the feedback, and then post it again. He has posted 15 versions and "it is still in progress", he said.

PostgreSQL 11: something for everyone

PostgreSQL 11 had its third beta release on August 9; a fourth beta (or possibly a release candidate) is scheduled for mid-September. While the final release of the relational database-management system (currently slated for late September) will have something new for many users, its development cycle was notable for being a period when the community hit its stride in two strategic areas: partitioning and parallelism. Partitioning and parallelism are touchstones for major relational database systems. Proprietary database vendors manage to extract a premium from a minority of users by upselling features in these areas. While PostgreSQL has had some of these "high-tier" items for many years (e.g., CREATE INDEX CONCURRENTLY, advanced replication functionality), the upcoming release expands the number considerably. I may be biased as a PostgreSQL major contributor and committer, but it seems to me that the belief that community-run database system projects are not competitive with their proprietary cousins when it comes to scaling enterprise workloads has become just about untenable. Read more