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Top 5 Bash Tips and Tricks for Beginners

Tuesday 26th of February 2019 06:35:27 PM
In this article we present our top 5 tips and tricks every bash user should learn. With these tips in your Linux toolbox you will become an efficient command line master.

Reducing security risks with centralized logging

Tuesday 26th of February 2019 04:06:47 PM
Logging and log analysis are essential to securing infrastructure, particularly when we consider common vulnerabilities. This article, based on my lightning talk Let's use centralized log collection to make incident response teams happy at FOSDEM'19, aims to raise awareness about the security concerns around insufficient logging, offer a way to avoid the risk, and advocate for more secure practices.read more

How to Install OpenCart on Ubuntu 18.04

Tuesday 26th of February 2019 12:41:19 PM
OpenCart is a free and open-source PHP e-commerce platform combining powerful features with flexibility and user-friendly interface.With features like User Management, Multi-Store, Affiliates, Discounts, Product Reviews, Multi-lingual and multiple Payment Gateways, OpenCart is a platform of choice for many online merchants.

Robotics kit runs Linux on new DragonBoard 845c 96Boards SBC

Tuesday 26th of February 2019 11:44:08 AM
Qualcomm and Thundercomm have launched a “Robotics RB3 Platform” that runs Linux and ROS on an octa-core Snapdragon 845 via a new “DragonBoard 845c” 96Boards SBC. The $449 kit includes 4K and tracking cameras. Qualcomm subsidiary Qualcomm Technologies, which in December released a Qualcomm Flight Pro for drones, has returned with another Snapdragon based robotics […]

Jinja2 string filter example for Ansible.

Tuesday 26th of February 2019 10:46:57 AM
Jinja2 is a templating engine for python. However we can use it in Ansible for generating dynamic content. There are many filters available in Jinja2. In this article we are going to check Jinja2 string filter examples.

Ubuntu 19.04 (Disco Dingo) Enters Feature Freeze, Beta Available March 28th

Tuesday 26th of February 2019 09:49:46 AM
Canonical is working hard on the next major release of its popular Ubuntu Linux operating system, Ubuntu 19.04 (Disco Dingo), which recently entered a new important development phase, Feature Freeze.

What Linus Torvalds really thinks about ARM processors

Tuesday 26th of February 2019 08:52:35 AM
VIDEO: In a recent post, Torvalds shared some thoughts about ARM processors and servers, and people thought he was dismissing ARM[he]#039[/he]s future on servers and the cloud. Here[he]#039[/he]s what he really meant.

Open Networking Summit Europe

Tuesday 26th of February 2019 07:55:24 AM
Open Networking Summit is the industry’s premier open networking event, enabling collaborative development and innovation across enterprises, service providers and cloud providers and discussing the future of Open Source Networking.

System76's Oryx Pro Linux Laptop Getting RTX Graphics and Larger Displays

Tuesday 26th of February 2019 06:58:13 AM
After refreshing the "Darter Pro" and "Serval WS" Linux laptops with newer graphics and upgraded components, American computer manufacturer System76 plans to launch a new version of its Oryx Pro laptop.

Toughened up i.MX6 SBC offers NimbleLink cellular expansion

Tuesday 26th of February 2019 06:01:02 AM
VersaLogic’s rugged, Linux-friendly “Swordfish” SBC is equipped with a dual- or quad-core i.MX6 with up to 4GB RAM plus eMMC, GbE, HDMI, LVDS, USB, WiFi/BT, and a NimbleLink socket for cellular expansion. VersaLogic has posted preliminary specs for a $239 and up Swordfish SBC that runs Linux and other Arm-friendly operating systems on a Cortex-A9 [[he]#8230[/he]]

RISC-V Boston

Tuesday 26th of February 2019 05:03:51 AM
The RISC-V Foundation will be hosting a free, Getting Started with RISC-V event in Boston. This 1 day event will showcase innovative RISC-V implementations from members of the Foundation. The half-day Boston event on April 1 will feature engaging presentations, demos and networking opportunities.

How to Install Grub Customizer on Ubuntu

Tuesday 26th of February 2019 04:06:40 AM
Grub Customizer is a useful UI tool for modifying the default Grub boot loader settings. By using this tool, you can add, remove, and re-arrange boot menu entries. You can edit kernel parameters and also choose to change the time delay at boot, in order to boot from the default entry. The software also lets you make cosmetic configurations like changing the text color and background image.

7 trailblazers in tech comment on Black History Month

Tuesday 26th of February 2019 03:09:29 AM
A huge part of what makes working in open source special is working with a diverse set of people from different backgrounds. During Black History Month (BHM), we honor those who've come before us, but I also want to spotlight some of today's incredible, diverse open source inventors and leaders whose contributions have influenced the technology we depend on today.read more

Linux Kernel Flaw, Ubuntu Rumor Debunked, Kali, Geary, digiKam, Riot/Matrix | This Week in Linux 56

Tuesday 26th of February 2019 02:12:18 AM
VIDEO: Changes Coming to Flathub, Alfred: Automated Software Installation, EasyOS, BackBox, Librem 5 Smartphone Delayed to Q3, Linus Torvalds on ARM, Redis Labs Drops Commons Clause

Some (Linux) Bugs Have All the Fun

Tuesday 26th of February 2019 01:15:07 AM
As satisfying as it is to make fun of Microsoft and Apple—and, boy howdy, isit ever—we in the Linux (and general Free and Open-Source Software world)are not immune from highly embarrassing, crazy destructive bugs and securityvulnerabilities.

openSUSE Leap 15.1 Enters Beta Based on SLE 15 SP1, Final Release Lands May 2019

Tuesday 26th of February 2019 12:17:56 AM
The upcoming first point release of the openSUSE Leap 15 operating system series has entered beta phase of development, which will last until mid-April 2019.

How To Identify That The Linux Server Is Integrated With Active Directory (AD)?

Monday 25th of February 2019 11:15:59 PM
2DayGeek: Do you know how to check AD integration in Linux?

Netboot a Fedora Live CD

Monday 25th of February 2019 10:01:39 PM
Live CDs are useful for many tasks such as: installing the operating system to a hard drive repairing a boot loader or performing other rescue-mode operations providing a consistent and minimal environment for web browsing …and much more. As an alternative to using DVDs and USB drives to store your Live CD images, you can […]

3 Ways of Installing VirtualBox on Ubuntu based distributions

Monday 25th of February 2019 08:47:19 PM
This beginner’s tutorial explains various ways to install VirtualBox on Ubuntu and other Debian-based Linux distributions.

More in Tux Machines

OSS: Blockchain, DeepBrain, Redox OS, OpenBuilds, Red Hat Summit and FOSSASIA

  • It's About Time DApps Unlocked the Mass-Market Momentum for Blockchain
    There’s more to Blockchain technology than Bitcoin and other cryptocurrencies. At its fundamental level, Blockchain technology engenders trusts in inherently trustless environments. Protocol blockchains such as Bitcoin, Ethereum, EOS, GoChain, Steem and xDai have provided a launchpad for developers to work on DApps. DApps are typically open source applications not owned by anyone, immune from downtimes; and that cannot be shut down by a government or its agencies. The rapid proliferation of Decentralized Applications (DApps) powered a bull run in cryptocurrencies in 2017. Right now, there are more than 2000 DApps designed to solve specific market problems across industries such as health, data storage, finance, gaming, and governance.
  • DeepBrain Chain outlines release of DBC 0.3.6.0 beta in progress report
    DeepBrain Chain detailed the release of DBC 0.3.6.0 beta of its AI Training Net, which allows users to rent computing power to train artificial intelligence algorithms. DeepBrain Chain claimed numerous feature inclusions and and improvements, many pertaining to the scheduling and activation of tasks. In DBC 0.3.6.0, if an AI training task has been stopped a specified period of time, its storage will be deleted automatically. However, the task can be restarted at any time before deletion. If a node has been restarted, reactivation of any previous training tasks will require manual user authorization. [...] A decision was made recently by the community concerning the open source licensing of DeepBrain Chain’s code. Over 55 percent of the members polled voted to not make the code fully open source by the end of March.
  • Redox OS 0.5.0
    It has been one year and four days since the last release of Redox OS! In this time, we have been hard at work improving the Redox ecosystem. Much of this work was related to relibc, a new C library written in Rust and maintained by the Redox OS project, and adding new packages to the cookbook. We are proud to report that we have now far exceeded the capabilities of newlib, which we were using as our system C library before. We have added many important libraries and programs, which you can see listed below.
  • Redox OS 0.5 Released With New C Library Written In Rust
    It's been just over one year since the previous release of Redox OS while today this Rust-written operating system has finally been succeeded by Redox OS 0.5.  It's taken a while since the previous release of Redox OS as they have been focusing their attention on Relibc, a C library implementation written within the Rust programming language. Relibc is now used as the operating system's default C library.
  • Get Moving with New Software from OpenBuilds
    If you’re reading Hackaday, you’ve probably heard of OpenBuilds. Even if the name doesn’t sound familiar, you’ve absolutely seen something on these pages that was built with their components. Not only is OpenBuilds a fantastic place to get steppers, linear rails, lead screws, pulleys, wheels, and whatever else you need to make your project go, they’re also home to an active forum of people who are passionate about developing open source machines. As if that wasn’t enough reason to head over to the OpenBuilds website, [Peter Van Der Walt] recently wrote in to tell us about some new free and open source software he and the team have been working on that’s designed to make it easier than ever to get your creations cutting, lasing, milling, and whatever else you could possibly imagine. If you’ve got a machine that moves, they’ve got some tools you’ll probably want to check out.
  • Dive into developer-focused sessions at Red Hat Summit
    Red Hat Summit is just around the corner, and it’s shaping up to be best Red Hat developer event ever. This year, attendees will get to choose from more than 300 sessions, not to mention booth presentations, parties, labs, and training. To help you cut through the clutter, we’ve created a list of developer specific activities and sessions that will help you shape your Red Hat Summit experience. Most of these sessions are part of the Cloud-Native App Dev track, with a few other sessions that we think will appeal to you as a developer. For more information on these sessions, visit the Red Hat Summit session listing page and sort by “cloud-native app dev” track.
  • 10th year of FOSSASIA
    This FOSSASIA was special as it marked its 10th year! It was quite impressive to witness a FOSS conference to continue growing this long with growing community. The four day conference schedule was packed with various interesting talks, workshops, hackathon and other engaging activities.

Reducing sysadmin toil with Kubernetes controllers

Kubernetes is a platform for reducing toil cunningly disguised as a platform for running containers. The element that allows for both running containers and reducing toil is the Kubernetes concept of a Controller. [...] The canonical example of this in action is in how we manage Pods in Kubernetes. A Pod is effectively a running copy of an application that a specific worker node is asked to run. If that application crashes, the kubelet running on that node will start it again. However, if that node crashes, the Pod is not recovered, as the control loop (via the kubelet process) responsible for the resource no longer exists. To make applications more resilient, Kubernetes has the ReplicaSet controller. The ReplicaSet controller is bundled inside the Kubernetes controller-manager, which runs on the Kubernetes master node and contains the controllers for these more advanced resources. The ReplicaSet controller is responsible for ensuring that a set number of copies of your application is always running. To do this, the ReplicaSet controller requests that a given number of Pods is created. It then routinely checks that the correct number of Pods is still running and will request more Pods or destroy existing Pods to do so. By requesting a ReplicaSet from Kubernetes, you get a self-healing deployment of your application. You can further add lifecycle management to your workload by requesting a Deployment, which is a controller that manages ReplicaSets and provides rolling upgrades by managing multiple versions of your application's ReplicaSets. Read more

Android Leftovers

Server: IBM, LAMP and Kubernetes

  • A HATS For Many Occasions
    IBM gives customers plenty of options when it comes to its Rational Host Access Transformation software, including several modes of operation, different runtime options, and support for different operating systems in screen modernization engagements. With last week’s launch of HATS version 9.7, the development and deployment options got even wider. Regardless of which downstream options a HATS customer ultimately chooses, it all starts out basically the same on the front side of the sausage machine: Customers come to HATS because they have a 5250 (or 3270 or VT100) application that they want to transform, but they don’t want to go through the hassle, expense, and risk of modifying the IBM i, z/OS, or Unix application’s source code.
  • Six top skills that you should acquire in 2019
    There is a growing demand for the fullstack development skill set, which is the ability to develop tech both on the front-end/client side and back-end/server side. As you can’t learn all, select combinations like MEAN or LAMP stack.
  • Kubernetes and the Enterprise
    The reason we were having this conversation was around SUSE’s Cloud Application Platform (CAP). This is our Kubernetes focused Cloud Foundry distribution. And as part of the Kubernetes focus, we have been supporting and running SUSE CAP on Azure’s AKS for the last year or so. The conversation continued with observations that Kubernetes was clearly the future across IT. Yet to date, Cloud Foundry still has a good following with the large enterprise. And the thinking was that the Cloud Foundry approach really helped the large enteprise work with their applications, even if the applications were purely ‘container’ applications. Cloud Foundry makes the container-side of managing your ‘container’ application transparent. This approach ultimately lowers the tasks, breadth of tooling, and knowledge you have to surround Kubernetes with. It was with this thought, that a light-bulb went on.