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February 2019

Best 15 Linux Painting Tools for Professionals and Digital Artists

Filed under
Software

Painting tools have been a must and an essential part of our daily life. From personal to professional purposes, it has an immense area to employ. Whether you wish to retouch your family photos or finalize the product photos for your business, painting software has been turned into an extraordinary source in all the platforms. Today I am going to discuss some vital Linux painting tools for professionals and digital artists.

Like the other operating systems, Linux has all the facilities with a great working environment. It is a stable and secure platform where you can use some excellent painting tools for your professional and personal purposes. You can get natural paint on a digital canvas with the help of different artistic tools.

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Indie Makers Using Single-Board Computers

Filed under
Linux
Interviews

Two such projects have really caught my attention lately: the Noodle Pi and the TinyPi.

The Noodle Pi is a simple, handheld computer (about the size of a deck of playing cards). And, when I say simple, I mean simple. It's got a micro-USB charging port, another for plugging in USB devices, a touch screen and a battery. Think of it like an old-school PDA without any buttons (other than a small power toggle) and the ability to run a full Linux-based desktop.

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MiyoLinux: A Lightweight Distro with an Old-School Approach

Filed under
Linux

If you’re itching to throw it back to a time when Linux offered you a bit of challenge to your daily grind, MiyoLinux might be just the operating system for you. It’s a lightweight operating system that makes good use of a minimal set of tools. Anyone who likes their distributions to be less modern and more streamlined will love this take on the Linux desktop. However, if you prefer your desktop with the standard bells and whistles, found on modern distributions, you’ll probably find MiyoLinux nothing more than a fun distraction from the standard fare.

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KDE Chat on Matrix

Filed under
KDE
OSS

KDE and open source in general has used IRC since the 90s but times change and these days people expect more than text with lots of internals exposed to the user. So KDE has set up a Matrix server which talks to other Matrix server and importantly also talks to IRC servers and their channels because some people will never change. The bridging to IRC isn’t perfect but it works much neater than on e.g. Telegram where the IRC user is one bot, here the IRC user is an individual user and you can set it up to use the same nickname you’ve been using since 1995. Unless you use square brackets in your nickname in which case I’ve no sympathy.

But it still requires a bit of understanding and setup. For one thing you need an app to talk to it, and the more common apps seem to be Riot web and Riot Android. KDE has its own setup of Riot web called webchat.kde.org and you can get the Android client from F-Droid or Google Play. Once you make an account you also need to tick some boxes (including one saying you are over 16 which vexes somewhat but it doesn’t be beyond the ability of most 15 year old to work out how to work around it).

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today's leftovers

Filed under
Misc
  • Sparky news 2019/02

    The 2nd monthly report of 2019 of the Sparky project

  • MX Linux and SystemRescueCD
  • Scaling PostgreSQL with Kubernetes Operators

    Crunchy Data's open source Crunchy PostgreSQL Operator is an Operator for PostgreSQL that is used in many production environments. It provides a simple yet powerful command-line interface that lets users deploy their own database-as-a-service system on any Kubernetes-enabled platform.

    For example, with the pgo create command, which is used to provision a database, you can set up a distributed, high-availability PostgreSQL cluster with full disaster recovery support along with a database monitoring sidecar powered by pgMonitor. In other words, in lieu of a complicated multi-step process or having to write your own scripts, you can create the type of PostgreSQL system required for production from a single command.

    While this may seem to be overkill if you are managing a handful of database clusters, the value of an Operator scales significantly if you need to support hundreds or thousands of different clusters. Having a standardized set of commands with the ability to flexibly deploy clusters for different workloads both eases the administration burden and provides more options for how a team can develop and deploy workloads into production.

  • Today's Context Demands Use of OER

    This movement is the most exciting thing to happen to higher ed in my lifetime. It brings together the humanity, respect for students (and instructors!) and impetus to make a positive change in students’ lives from thinkers like bell hooks, Paulo Freire and John Dewey with the technological know-how and thirst for openness, access and justice of Seymour Papert, Richard M. Stallman and Aaron Swartz.

    There is no point in my parodying the eloquence of the expositors of open pedagogy cited above -- please go read them right now, if you haven’t yet. But one thing I can do is add a small point I haven’t see those authors emphasize, in the spirit (following Green) of exploring what motivates faculty. One thing that faculty members love (perhaps particularly at primarily research institutions, where they may be worried about something with enormous impact on pedagogy but which will require a large investment of their time) is their academic freedom.

  • AMDGPU LLVM Backend Seeing A Number Of Fixes In Recent Days

    If you habitually use the latest open-source graphics drivers, you may want to pull down the latest LLVM code from SVN/Git as there has been a number of fixes to the AMDGPU back-end in recent days.

    For those that haven't upgraded in a while or perhaps still on the LLVM 8 code-base, the latest LLVM 9 development code has been seeing a number of AMDGPU commits during the second half of February. There's been enabling of function calls by default that fixes some crashes, other crash fixes, implementing various features, enabling the DPP combiner pass by default, and other bits.

  • PyCharm 2019.1 EAP 6

    A variable viewer for our native Jupyter Notebook support, an interpreter indicator in the status bar, and more. Try the PyCharm 2019.1 EAP now, you can download the latest version on our website.

  • Include the currency name into the forex application

    Hello and welcome back to this new python forex application project. In the previous chapter, we have successfully retrieved the name and the id pair for all the conbase supported currencies, and in this chapter, we will use that information to add the currency name beside each currency id when we are comparing that currency to the USD. Below is the modify version of this program.

  • IRC vs IRL: How to run a good IRC meeting

    There's an art to running a meeting in any format. Many people have learned to run in-person or telephone meetings, but Internet Relay Chat (IRC) meetings have unique characteristics that differ from "in real life" (IRL) meetings. This article will share the advantages and disadvantages of the IRC format as well as tips that will help you lead IRC meetings more effectively.

    Why IRC? Despite the wealth of real-time chat options available today, IRC remains a cornerstone of open source projects. If your project uses another communication method, don't worry. Most of this advice works for any synchronous text chat mechanism, perhaps with a few tweaks here and there.

AV1 Image File Format (AVIF), Awful Intel Standards, and Linux Kernel at LWN

Filed under
Graphics/Benchmarks
Linux
  • AV1 Image File Format v1.0 Finalized

    The AV1 Image File Format (AVIF) appears solid now with it having been promoted to version 1.0.0. 

    The AV1 Image File Format (AVIF) is the specification for storing images and image sequences (animated images) compressed via AV1 in the HEIF High-Efficiency Image File Format. AV1, of course, being the promising royalty-free video coding format competing with the likes of HEVC/H.265. This is to AV1 as the WebP image format is to VP9/WebM. 

    The AV1 Image File Format continues making inroads and being worked on by the likes of Netflix and Microsoft, among other tech companies. Back in December, Netflix began publishing sample AVIF sample images here.

  • USB 3.2 Is Here To Make Things More Confusing For Everyone

    But with the introduction of USB 3.2, things have become even more confusing.

    The USB standards body has now rebranded 5Gb/s devices as “USB 3.2 Gen 1,” 10Gb/s devices as “USB 3.2 Gen 2” and the latest standard offering 20Gb/s speed has been dubbed “USB 3.2 Gen 2×2” because two 10Gb/s connections run parallelly in the wire.

  • The Intel-Developed Vulkan Overlay Layer Picks Up New Features, Dump FPS To File

    It was just one week ago that developers from the Intel Open-Source Technology Center contributed their new Vulkan Overlay later to Mesa 19.1 for providing various performance metrics/statistics of use to application/driver developers. This Vulkan overlay continues being improved upon as well as making it more applicable to gamers/enthusiasts.

  • The case of the supersized shebang

    Regressions are an unavoidable side effect of software development; the kernel is no different in that regard. The 5.0 kernel introduced a change in the handling of the "#!" (or "shebang") lines used to indicate which interpreter should handle an executable text file. The problem has been duly fixed, but the incident shows how easy it can be to introduce unexpected problems and highlights some areas where the kernel's development process does not work as well as we might like.
    By longstanding Unix convention, an attempt to execute a file that does not have a recognized binary format will result in that file being passed to an interpreter. By default, the interpreter is a shell, which will interpret the file as a shell script. If, however, the file starts with the characters "#!", the remainder of the first line will be treated as the name of the interpreter to use (and possibly arguments to be passed to that interpreter). This mechanism allows programs written in almost any interpreted language to be executed directly; the user need never know which interpreter is actually doing the work behind the scenes.

  • Per-vector software-interrupt masking

    Software interrupts (or "softirqs") are one of the oldest deferred-execution mechanisms in the kernel, and that age shows at times. Some developers have been occasionally heard to mutter about removing them, but softirqs are too deeply embedded into how the kernel works to be easily ripped out; most developers just leave them alone. So the recent per-vector softirq masking patch set from Frederic Weisbecker is noteworthy as an exception to that rule. Weisbecker is not getting rid of softirqs, but he is trying to reduce their impact and improve their latency.
    Hardware interrupts are the means by which the hardware can gain a CPU's attention to signal the completion of an I/O operation or some other situation of interest. When an interrupt is raised, the currently running code is (usually) preempted and an interrupt handler within the kernel is executed. A cardinal rule for interrupt handlers is that they must execute quickly, since they interfere with the other work the CPU is meant to be doing. That usually implies that an interrupt handler will do little more than acknowledge the interrupt to the hardware and set aside enough information to allow the real processing work to be done in a lower-priority mode.

    The kernel offers a number of deferred-execution mechanisms through which that work can eventually be done. In current kernels, the most commonly used of those is workqueues, which can be used to queue a function call to be run in kernel-thread context at some later time. Another is tasklets, which execute at a higher priority than workqueues; adding new tasklet users tends to be mildly discouraged for reasons we'll get to. Other kernel subsystems might use timers or dedicated kernel threads to get their deferred work done.

Security: GNOME Security Internship, Supply Chain Security Talk, SHAREit is 'Cracked'

Filed under
Security
  • GNOME Security Internship - The end?

    The first part regarding protecting the system from potentially unwanted new USB devices can be considered completed. Probably now it will requires just bug fixing and minor changes, if necessary. The required merge requests are up.

    The second part regarding limiting the number of usable keys for untrusted keyboards reached a working stage. However it’s still under evaluation which is the best way to achieve it, because even if with the current solution works it doesn’t mean that this is the desirable way to do it.

  • Supply Chain Security Talk [iophk: "warning for Microsoft event; maybe don't want to [attend] despite Bunnie presenting"]

    In the talk, I relay some of my personal trials authenticating my supply chains, then I go into the why of the supply chain attacks to establish some scenarios for evaluating different approaches. The talk attempts to broadly categorize the space of possible attacks, ranging from attacks that cost a penny and a few seconds to pull off to hundreds of thousands of dollars and months. Finally, I try to outline the depth of the supply chain attack surface, highlighting the overall TOCTOU (time of check, time of use) problem that is the supply chain.

  • Critical SHAREit Flaw Gives Attackers Full Access To Device Files

    Data sharing apps like SHAREit and Xender have transformed the way files are shared, since their release a few years ago. The apps transfer files over wifi which is much faster compared to sending files using Bluetooth.

  • High-Severity SHAREit App Flaws Open Files for the Taking

    SHAREit has fixed two flaws in its app that allow bad actors to authenticate their devices and steal files from a victim’s device.

    Two high-severity flaws in the SHAREit Android app allow an attacker to bypass the file transfer application’s device authentication mechanism – and ultimately download content and arbitrary files from the victim’s device, along with a raft of data such as Facebook tokens and cookies.

Forget Windows Use Linux – A Distro Designed to Work with Android

Filed under
OS
GNU
Linux
Microsoft

Over a year ago, we published a list of the Top 10 Open Source Distros You Haven’t Heard About, and while we also had good suggestions in the comments but the subject of our article today was nowhere in our radar. It goes by the name of FWUL which, interestingly, stands for Forget Windows, Use Linux.

FWUL (Forget Windows Use Linux) is a lightweight open-source Operating System based on Arch Linux that started as an initiative to create a smooth Android-like User Experience for desktop users who had issues with Microsoft Windows.

The same FWUL has an interesting name for an Operating System is the same way it has an interesting back story. The developer always pointed users to Linux whenever the complained about their issues with Windows because he believed that most of them were fixable in Linux.

However, popular distros like Ubuntu and Linux Mint didn’t include everything Android users need. For example, Ubuntu users still need to enter commands to install some apps, flashing Android phones requires the installation of certain drivers, etc.

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Mozilla and Mycroft: WebRender and Voice Recognition

Filed under
Moz/FF
  • Mozilla GFX: WebRender newsletter #41

    Welcome to episode 41 of WebRender’s newsletter.

    WebRender is a GPU based 2D rendering engine for web written in Rust, currently powering Mozilla’s research web browser Servo and on its way to becoming Firefox‘s rendering engine.

    Today’s highlights are two big performance improvements by Kvark and Sotaro. I’ll let you follow the links below if you are interested in the technical details.
    I think that Sotaro’s fix illustrates well the importance of progressively rolling out this type of project a hardware/OS configuration at a time, giving us the time and opportunity to observe and address each configuration’s strengths and quirks.

  • Sharing our Common Voices – Mozilla releases the largest to-date public domain transcribed voice dataset

    Mozilla crowdsources the largest dataset of human voices available for use, including 18 different languages, adding up to almost 1,400 hours of recorded voice data from more than 42,000 contributors.

    From the onset, our vision for Common Voice has been to build the world’s most diverse voice dataset, optimized for building voice technologies. We also made a promise of openness: we would make the high quality, transcribed voice data that was collected publicly available to startups, researchers, and anyone interested in voice-enabled technologies.

    Today, we’re excited to share our first multi-language dataset with 18 languages represented, including English, French, German and Mandarin Chinese (Traditional), but also for example Welsh and Kabyle. Altogether, the new dataset includes approximately 1,400 hours of voice clips from more than 42,000 people.

  • Securing privacy with Mycroft, an Open AI voice assistant

    Voice-assisted technologies are extremely popular; already there are 2.5 billion such devices in use and that's expected to triple to 8 billion by 2023. This growth appears to be unstoppable—despite the privacy and security vulnerabilities in mainstream voice-assisted technology.

    One of these is the "open-window" vulnerability where, for example, a malicious person walks by an open window and shouts, "Hey, unlock the door!" and gains access to the house. Researchers have also identified thousands of false-positive wake words for Alexa and Google, potential attack vectors to inject malicious commands. Some people bring up the risk of subsonic commands injected over TV. Amazon may already be using frequency manipulations to keep Alexa from activating during its commercials. And, as with any web-connected computer device, there's the potential for backdoors and other common vulnerabilities.

Development: LibreOffice Asia Conference 2019, Fedora Development Docs, GNOME Online Accounts (GOA) and Another Developer Gathering for Devuan

Filed under
OS
LibO
  • LibreOffice Asia Conference 2019, Tokyo: Call for Papers is open

    Call for Papers for LibreOffice Asia Conference 2019, held at the Nihonbashi Tokyo Tower (at Cyboze, Inc., Tokyo Office) on May 25th (Sat) and 26th (Sun), is now open.

    LibreOffice Asia Conference will be the first event gathering LibreOffice users, advocates and contributors (not only development, but also localization, PR/marketing, documentation, quality assurance, … etc.) from different countries in Asia, to exchange and share experiences and knowledge.

    During the conference, we will discuss LibreOffice related business such as supporting and training, migrating to LibreOffice and the ODF true standard format, developing, and any other community activity in Asia. In addition, we will have guests from the core team at The Document Foundation, which is a charitable foundation and the home of LibreOffice.

  • Fedora IoT Docs are Live

    Design ideas: My focus was on technical content. The basic layout is dictated by the Fedora Docs project but a bit of design work on the welcome page and the addition of any IoT specific logos would be nice. Also, there are a few screenshots that could use a pointer or box to highlight the area described in the text.

    Verify links for downloads and upgrades: The working group now has regular updated images available in a CDN and the next downloadable image is in progress along with the final version of the landing page for downloads. Once the update and release schedule process is smoothed out, the documentation needs to be verified.

    Get ready for F30: When Fedora 30 is ready, the site will need some Release Notes and the User Guide will need some updates to cover new features. You can submit suggestions as iot-docs issues in pagure.

  • Some challenges for GNOME online accounts

    The cynical among us might be tempted to think that an announcement from the GNOME project about the removal of a feature — a relatively unused feature at that — would be an unremarkable event. In practice, though, Debarshi Ray's announcement that the GNOME Online Accounts (GOA) subsystem would no longer support the "documents" access point touched off a lengthy discussion within the project itself. The resulting discussion revealed a few significant problems with GOA and, indeed, with the concept of online-account management in any sort of open-source umbrella project like GNOME.

    GOA is meant to provide a single sign on system integrating GNOME applications with web-based services. Any application that, for example, wants to access files stored in Google Drive would ordinarily have to ask the user for credentials and log into Drive separately, which gets tiresome for users running a lot of applications. By routing this access through GOA, the GNOME developers hope to simplify the process of using those services. GOA includes a number of different "integration points" for different types of services, including files, email, calendars, contacts, and more.

    The "documents" point was used by the Documents application, which is meant to help users manage their documents. It has suffered, though, from a lack of both users and developers and lacks basic features; Michael Catanzaro described it as "basically just 'bad evince'". That certainly restricts its prospects for success; as Ray put it: "it doesn't stand any chance of adoption unless it can open files like /usr/bin/evince". Documents has duly been removed from the core set of GNOME applications. Since it was the only core application using the "documents" integration point, that point is now being removed.

  • Systemd-Free Debian "Devuan" Planning Their First Developer Gathering This Spring

    For fans of Devuan, the downstream of Debian focused on "init system independence" or just "Debian without systemd", their first-ever conference is happening in just over one month.

More in Tux Machines

Open Hardware: Crowbits, Raspberry Pi, and RISC-V

  • Crowbits Master Kit Tutorial - Part 2: ESP32 intrusion scanner and visual programming - CNX Software - Embedded Systems News

    I started Crowbits Master Kit review last month by checking out the content, user manual, and some of the possible projects for the ESP32 educational kit including a 2G phone and a portable game console. For the second part of the review, I’ll go through one of the lessons in detail, namely the intrusion scanner to show the whole process and how well (or not) it works. Let’s go to Lesson 5 directly, although I’d recommend going through the first lessons that provide details about the hardware and visual programming basics using Letscode program, which is basically a custom version of Scratch for Crowbits

  • RP2040-PICO-PC small computer made with the Raspberry Pi RP2040-PICO module first prototypes are ready

    It’s small base board for RP2040-PICO the $4 module with the Cortex-M0+ processor made by Raspberry Pi foundation.

    We were ready with the prototype for a long time but the RP2040-PICO modules were tricky to source

  • ESP32-C6 WiFI 6 and Bluetooth 5 LE RISC-V SoC for IoT devices coming soon - CNX Software - Embedded Systems News

    Espressif Systems introduced their first RISC-V wireless SoC last year with ESP32-C3 single-core 32-bit RISC-V SoC offering both 2.4GHz WiFi 4 and Bluetooth 5.0 LE connectivity, and while the company sent some engineering samples of ESP32-C3 boards months ago, general availability of ESP32-C3-DevKitM-1 and modules is expected shortly. But the company did not stop here, and just announced their second RISC-V processor with ESP32-C6 single-core 32-bit RISC-V microcontroller clocked at up to 160 MHz with both 2.4 GHz WiFi 6 (802.11ax) and Bluetooth 5 LE connectivity.

Linux, NetBSD, and OpenBSD

  • EXT4 With Linux 5.13 Looks Like It Will Support Casefolding With Encryption Enabled - Phoronix

    While EXT4 supports both case-folding for optional case insensitive filenames and does support file-system encryption, at the moment those features are mutually exclusive. But it looks like the upcoming Linux 5.13 kernel will allow casefolding and encryption to be active at the same time. Queued this week into the EXT4 file-system's "dev" tree was ext4: handle casefolding with encryption.

  • SiFive FU740 PCIe Support Queued Ahead Of Linux 5.13 - Phoronix

    Arguably the most interesting RISC-V board announced to date is SiFive's HiFive Unmatched with the FU740 RISC-V SoC that features four U74-MC cores and one S7 embedded core. The HiFive Unmatched also has 16GB of RAM, USB 3.2 Gen 1, one PCI Express x16 slot (operating at x8 speeds), an NVMe slot, and Gigabit Ethernet. The upstream kernel support for the HiFive Unmatched and the FU740 SoC continues. With the Linux 5.12 cycle there was the start of mainlining SiFive FU740 SoC support and that work is continuing for the upcoming Linux 5.13 cycle.

  •                  
  • The state of toolchains in NetBSD
                     
                       

    While FreeBSD and OpenBSD both switched to using LLVM/Clang as their base system compiler, NetBSD picked a different path and remained with GCC and binutils regardless of the license change to GPLv3. However, it doesn't mean that the NetBSD project endorses this license, and the NetBSD Foundation's has issued a statement about its position on the subject.

                       

    Realistically, NetBSD is more or less tied to GCC, as it supports more architectures than the other BSDs, some of which will likely never be supported in LLVM.

                       

    As of NetBSD 9.1, the latest released version, all supported platforms have recent versions of GCC (7.5.0) and binutils (2.31.1) in the base system. Newer (and older!) versions of GCC can be installed via Pkgsrc, and the following packages are available, going all the way back to GCC 3.3.6: [...]

  •                
  • Review: OpenBSD 6.8 on 8th Gen Lenovo ThinkPad X1 Carbon 13.3"
                     
                       

    10 days ago, I bought this X1 Carbon. I immediately installed OpenBSD on it. It took me a few days to settle in and make myself at home, but here are my impressions.

                       

    This was the smoothest experience I've had getting OpenBSD set up the way I like it. The Toshiba NB305 in 2011 was a close second, but the Acer I used between these two laptops required a lot more tweaking of both hardware and kernel to get it to feel like home.

Audio/Video and Games: This Week in Linux, MineTest, OpenTTD, and Portal Stories: Mel

  • This Week in Linux 146: Linux on M1 Mac, Google vs Oracle, PipeWire, Bottom Panel for GNOME Shell - TuxDigital

    On this episode of This Week in Linux, we’ve got an update for Linux support on Apple’s M1 Mac hardware. KDE Announces a new patch-set for Qt 5. IBM Announced COBOL Compiler For Linux. Then later in the show we’re bringing back everyone’s favorite Legal News segment with Google v. Oracle reaching U.S. Supreme Court. We’ve also got new releases to talk about such as PipeWire 0.3.25 and JingOS v0.8 plus GNOME Designers are exploring the possibility of having a bottom panel. Then we’ll round out the show with some Humble Bundles about programming in Python. All that and much more on Your Weekly Source for Linux GNews!

  • MineTest: I Am A Dwarf And I'm Digging A Hole

    People have been asking me to play MineTest for ages so I thought I should finally get around to it, if you've never heard of it MineTest is an open source Minecraft clone that surprisingly has a lot of community support

  • OpenTTD Went to Steam to Solve a Hard Problem - Boiling Steam

    OpenTTD, the free and open-source software recreation of Transport Tycoon Deluxe, has been a popular game for a long time, but recently something unusual happened. The team behind the project decided to release the game on Steam (still free as always) and this has changed everything. Let me explain why this matters. If you have ever played OpenTTD on Linux, let me venture that you have probably relied on your distro’s package manager to keep your game up-to-date. In theory, this is the BEST way to keep your packages up to date. Rely on maintainers. In practice however, it’s far from being something you can rely on, beyond security updates. Debian stable tends to have really old packages, sometimes years behind their latest versions. So on Debian stable you end up with OpenTTD 1.08 as the most recent version. That’s what shipped in April 2018. Just about 3 years old.

  • Portal Stories: Mel gets Vulkan support on Linux in a new Beta | GamingOnLinux

    Portal Stories: Mel, an extremely popular and highly rated mod for Portal 2 just had a new Beta pushed out which adds in Vulkan support for Linux. Much like the update for Portal 2 that recently added Vulkan support, it's using a special native build of DXVK, the Vulkan-based translation layer for Direct3D 9/10/11. Compared with the Portal 2 update, in some of my own testing today it seems that Portal Stories: Mel seems to benefit from the Vulkan upgrade quite a bit more in some places. At times giving a full 100FPS increase! So for those on weaker cards, this will probably be an ideal upgrade. Another game to test with Vulkan is always great too.

today's howtos

  • How to Install TeamSpeak Client on Ubuntu 20.04 Linux - Linux Shout

    TeamSpeak is a free voice conferencing software available to install on Linux, Windows, macOS, FreeBSD, and Android. It is the pioneer in its areas of other platforms such as Discord. TeamSpeak allows free of cost access to around 1000 public TeamSpeak servers or even your own private one. In parallel to online games, you can use the current TeamSpeak to communicate with friends via speech and text.

  • How To Install Robo 3T on Ubuntu 20.04 LTS - idroot

    In this tutorial, we will show you how to install Robo 3T on Ubuntu 20.04 LTS. For those of you who didn’t know, Robo3T formerly known as RobMongo is one of the best GUI tools for managing and querying MongoDB database. It provides GUI tools for managing & querying the MongoDB database. It embeds the actual mongo shell that allows for CLI as well as GUI access to the database. This article assumes you have at least basic knowledge of Linux, know how to use the shell, and most importantly, you host your site on your own VPS. The installation is quite simple and assumes you are running in the root account, if not you may need to add ‘sudo‘ to the commands to get root privileges. I will show you through the step-by-step installation of Robo 3T RobMongo on an Ubuntu 20.04 (Focal Fossa) server. You can follow the same instructions for Ubuntu 18.04, 16.04, and any other Debian-based distribution like Linux Mint.

  • How to Install Java on Ubuntu Step by Step Guide for Beginners

    Some programs/tools/utility on Ubuntu required java/JVM, without java these programs are not working. Are you facing the same problem? Don’t worry! Today I am going to cover in this article how to install Java on Ubuntu. This article will cover the complete tutorial step by step. You can get java on Ubuntu via three packages JRE, OpenJDK and Oracle JDK. Java and Java’s Virtual Machine (JVM) are widely used and required to run much software.

  • "apt-get command not found" error in Ubuntu by Easy Way

    apt-get command is used to manage package in Ubuntu and other Debian based distribution. You can install, remove software in Ubuntu, You can update upgrade ubuntu and other operating systems with help of this command. If you want to install new software on the Linux operating system by apt-get command but you get the error “apt-get command not found“. This is really the biggest problem for the new user. Neither you can install new packages nor you can update and upgrade ubuntu. apt-get is not working, how will you install a new package? If the problem only of installing new packages then it can be solved. You can use dpkg command to install deb files in ubuntu and derivatives.

  • How to upgrade Linux Mint 19.3 (Tricia) to Mint 20.1 (Ulyssa) - Linux Shout

    Are you planning to upgrade your existing Linux Mint 19.3 (Tricia) PC or Laptop to Linux Mint 20.1 Ulyssa, then following the simple steps given in the tutorial… Linux Mint is one of the popular distros among users who want a Windows-like operating system but with the benefits of Linux and a user-friendly interface. As Mint is an Ubuntu derivative, thus not only we have the access to a large number of packages to install but also stability. The process of upgrading Mint is very easy, we can use GUI or command to do that. However, in this article, we will show you how to upgrade from Tricia (19.3) to Ulyssa (20.1) using CLI, thus first you have to make sure that your existing Mint 19.3 is on 64-bit because 20.1 doesn’t support 32-bit.

  • How to Install Node js in Ubuntu Step by Step Explanation for Beginners

    Node.js is an open source cross-platform JavaScript run-time environment that allows server-side execution of JavaScript code. In simple words you can run JavaScript code on your machine (server) as a standalone application, and access form any web browser. When you create a server side application you need Node.js, it is also help to create front-end and full-stack. npm (Node Package Manager) is a package manager for the JavaScript programming language, and default package manager for Node.js. This tutorial will cover step by step methods “how to install node js in ubuntu 19.04″. in case you need the latest Node.js and npm versions. If you are using Node.js for development purposes then your best option is to install Node.js using the NVM script. Although this tutorial is written for Ubuntu the same instructions apply for any Ubuntu-based distribution, including Kubuntu, Linux Mint and Elementary OS.

  • How to play Geometry Dash on Linux

    Geometry Dash is a music platformer game developed by Robert Topala. The game is available to play on iOS, Android, as well as Microsoft Windows via Steam. In the game, players control a character’s movement and navigate through a series of music-based levels while avoiding obstacles and hazards.

  • How To Set Up a Firewall with UFW in Ubuntu \ Debian

    The Linux kernel includes the Netfilter subsystem, which is used to manipulate or decide the fate of network traffic headed into or through your server. All modern Linux firewall solutions use this system for packet filtering. [...] The default behavior of the UFW Firewall is to block all incoming and forwarding traffic and allow all outbound traffic. This means that anyone trying to access your server will not be able to connect unless you specifically open the port. Applications and services running on your server will be able to access the outside world.