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today's howtos

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HowTos
  • How to Enable Split Screen Mode in Chromebook - Make Tech Easier

    Sometimes you need to have two apps open at once. That doesn’t mean you need two devices or two screens. Instead, you can multitask by enabling split screen mode in Chromebook. Actually, you can follow the same process for most Chrome OS devices to split your screen in half to work on two different apps at one time.

  • How To Install Mantis Bug Tracker on Ubuntu 20.04 LTS - idroot

    In this tutorial, we will show you how to install Mantis Bug Tracker on Ubuntu 20.04 LTS. For those of you who didn’t know, Mantis is a free and popular open-source bug tracking system. It is written in PHP and supports all types of database servers. It provides a professional dashboard to manage bugs assigned to the user. It supports powerful access control which provides per project base user access. It is very flexible, you can customize the issue fields, notifications, and workflow.

    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 Mantis Bug Tracker on Ubuntu 20.04 (Focal Fossa). You can follow the same instructions for Ubuntu 18.04, 16.04, and any other Debian based distribution like Linux Mint.

  • How to Install AppImage Files in Linux | IT Pro

    This article will explain how to install AppImage--or, rather, how to ‘install’ AppImage.

  • How to launch AWS EC2 Instance Using Terraform

    Terraform is an open source ‘infrastructure as code’ command line tool used to manage infrastructure in the cloud. With terraform you define declarative configuration file called HashiCorp Configuration Language (HCL) and provision your infrastructure. For instance, you need a Virtual machine, you just define resources like memory, storage, computing in the form of code and push in cloud. You will get the virtual machine or virtual instanace.

  • How to Install RTL8188EU, RTL8723DS or other rtlwifi Driver via PPA in Ubuntu 20.04 | UbuntuHandbook

    Miss Realtek rtlwifi drivers or get ‘No WiFi Adapter Found‘ issue? There’s now an Ubuntu PPA that contains the most recent rtlwifi drivers for Ubuntu, Linux Mint, and derivatives.

    Without building from the source code, the “Linux Mint Türkiye” team maintains a PPA that contains the most recent wireless drivers with DKMS support for rtl8723bu, rtl8822bu, rtl8188eu, rtl8188fu, rtl8192cu, rtl8192du, rtl8192ee, rtl8192eu, rtl8192fu, rtl8723au, rtl8723bu, rtl8723de, rtl8723ds, rtl8723du, rtl8812au, rtl8814au, rtl8821ce, rtl8821cu, rtl8822bu devices.

    If you have a RealTek USB WiFi Adapter or a laptop / notebook with built-in chipset in the previous list, do following steps may help you install the drivers in Ubuntu 18.04, Ubuntu 20.04, Ubuntu 20.10, Linux Mint 20.

  • How to Install TensorFlow machine-learning framework on Ubuntu 20.04

    TensorFlow is a free and open-source machine-learning platform developed by Google. It helps developers and data scientists to simplify the process of implementing machine-learning models. Currently, it is used by many companies including, PayPal, Intel, Airbus, Twitter and many more. It has a Python front-end and can be portable between operating systems like Linux and Windows.

  • How to install SEPTOR Linux 2021 - YouTube

    In this video, I am going to show how to install SEPTOR Linux 2021.

  • How to flatten PDF documents - Tutorial

    A couple of days ago, I showed you how to redact information in Okular, the default PDF viewer in the Plasma desktop. The action is relatively simple to do, but it doesn't effectively destroy the redacted information, merely obscures it from the viewer.

    What I want to show you today is the second part of the puzzle - the flattening of PDF documents. Think an image with multiple layers, and then you save it all in a non-layered format. The information is then flattened into a single layer - the values of all the vertically stacked pixels are calculated - added/subtracted/whatever - and then presented as a single definitive computation of this action. The same with PDF, except it's more complicated, given the PDF structure. Let's do it.

  • How to install Signal Messenger app on Ubuntu 20.4 LTS Linux

    Signal is an open-source secure messenger alternative to popular Whatsapp that is also available for Ubuntu and other Linux apart from Windows, Android, and iOS platforms.

    Just like Telegram, we can install it on our Ubuntu desktop or laptop to get the benefits of its end to end encryption to send messages. Furthermore, if you are planning to ditch Whatsapp then you won’t miss out on audio and video conversations on your smartphones because that is available on Signal as well. Calls are also encrypted using the signal protocol, encoded with Opus, and transported with RTP. Apart from that, the general functions such as transfer documents and images are also there.

  • How to create Cloudwatch alarms for an S3 Bucket on AWS

    Cloudwatch provides Storage Metrics and Request Metrics for S3 Buckets. Storage Metrics come up with no extra cost and provided once a day whereas Request Metrics are available at 1-minute intervals and incur charges. Also, Cloudwatch provides Replication metrics. In this article, we will see how to create Cloudwatch alarms for S3 Bucket on AWS of type Storage Metric for NumberOfObjects.

More in Tux Machines

OpenSUSE: YaST Development Sprint and Digest of YaST Development Sprint

  • Digest of YaST Development Sprint 116

    Let’s start with an installer improvement quite some people was waiting for. Both openSUSE and SUSE Linux Enterprise can use either wicked or NetworkManager to handle the system’s network configuration. Only the former can be fully configured with YaST (which is generally not a problem because there are plenty of tools to configure NetworkManager). Moreover, during the standard installation process, wicked is always used to setup the network of the installer itself. If the user decides to rely on wicked also in the final system, then the configuration of the installer is carried over to it. But, so far, if the user opted to use NetworkManager then the installer configuration was lost and the network of the final system had to be be configured again using NetworkManager this time. Not anymore! That’s not the only installer behavior we have refined based on feedback from our users. In some scenarios, the logic used to decide whether an existing EFI System Partition (ESP) could be reused was getting in the way of those aiming for a fine-grained control of their partitions. That should now be fixed by the changes described in this pull request, that have been already submitted to Tumbleweed and will be part of the upcoming releases (15.3) of both openSUSE Leap and SLE.

  • Session One Meetup Generates Enhancements, Actions

    The first session of the openSUSE Project’s meetup regarding the End of the Year Survey Results on Jan. 23 is already starting produce some actionable items from contributors. The session on openSUSE’s Jitsi instance had engagement from about 20 people from around the globe. Topics discussed in the two-hour session focused on addressing pain points, transferring knowledge and promoting openSUSE projects. Members of the “let’s improve the openSUSE learning experience” shared statics and analysis from the survey and attendees engaged in generating ideas and actions to enhance and improve the above mentioned items.

The 10 Best Linux Server Distributions [2021 Edition]

One of the best things about Linux is the various types of distributions it has to offer. No matter how you plan to use your Linux PC, there’s a Linux distro optimized with all the necessary tools and functionalities to meet your needs. And this brings us to Linux server distributions – Linux distros optimized to be used on servers. These are lightweight Linux distros, sometimes even stripped of a desktop environment, and packed with tools to improve speed, stability, and security – the traits of a good server OS. But with that being said, there are literally hundreds of Linux server distros circulating the internet. So which one should you choose for your home server or even for professional use? Well, to answer your question, we have put together a comprehensive list of the 10 best Linux Server Distributions for 2021. [...] So this brings us to the end of our list of the 10 best Linux server distributions of 2021. We hope this was useful and helped you find the right Linux server distro for your specific needs and requirements. All the server distros come with their own unique advantages and disadvantages, as you can see. If you are completely new, we recommend starting with a Ubuntu server. With time, you’ll understand what features you need and then migrate to a distro that delivers those functionalities. But that being said, this is by no means a comprehensive list of all the best Linux server distros out there. So if your favorite distro didn’t make it up on this list, then feel free to mention it down in the comments along with why you prefer it over the options discussed here. We would surely like to know. Read more

openSUSE "Leap" 15.2 - Any Good?

This is a review I've been wanting to write since forever. Having tried many iterations of SUSE Linux over its long life before, during and after the Novell era, it always left me feeling ambivalent. And I really wanted to like it. The last time I set out to write a review but then canned the idea was for 12.3, when images would work in VMware Player but did not boot on my real hardware. Now THAT is a long time ago and it also means a lot may have changed, hopefully for the better. SUSE is known and often praised for their offering of a highly polished KDE desktop. This is what I will go for in this little experiment. On the download page we can choose between a netinstall image for openSUSE "Leap" approx. 125 MB in size for x86_64 and the full DVD image of 4.3 GB. This is the equivalent of the box set of olden days. Live images are available with the KDE Plasma and Gnome desktops as well as a Rescue Live CD which are all staying under 1 GB in size, but only the rescue image is small enough to burn to CD. All images can be written to USB and DVD. Community maintained ports are also available for ARM, the Raspberry Pi and PPC architectures. Instructions to install or change to "Leap" as well as minimum system requirements are further down the page. Quite a traditional selection really. The web page layout is simple and clear and conveys the most pertinent information right away. Years ago installing from live image was not recommended so the choice here is basically between downloading the entire library or the netinstall image. I decided to go for the netinstall. Not having an installable live image obviously robs us of the test run people have become accustomed to unless we down yet another image just for testing. I decided against that as we can see from the netinstall image whether openSUSE will boot up or not. The rest is just desktop showcasing. I downloaded images for the x86_64 architecture. Read more

Linux Kernel and Linux Foundation

  • Two Powerful SSD Benchmark Utilities for Linux

    The 21st century has seen unprecedented growth in the technological sector, and many upgrades have been made in the past several years. The evolution of phones from landlines to smartphones is a clear indicator of this technological phenomenon. The latter has become a key part of our lives, providing us a means to connect with the world around us. The desktops and laptops that we use today have also seen major progression, and this can be observed in the improvement in the quality of tools and games in the world of computers. One such sector in the computer world is that of memory storage, which has quickly moved on from traditional hard disks to a newer, faster type of storage called a solid-state drive, or SSD for short. SSDs are extremely fast, require less power, and are more shock-resistant than HDDs. You can see this for yourself by benchmarking your SSDs. Benchmarking is the process of measuring the performance of any tool, which can be done using a benchmarking utility. This article looks at two of the best utilities available for SSD benchmarking in the Linux operating system, Disks and hdparm.

  • Radeon ROCm 4.0.1 Released For AMD Open-Source GPU Compute

    Last month marked the release of the big Radeon Open eCosystem 4.0 update (ROCm 4.0) while today that has been replaced by a v4.0.1 point release. ROCm 4.0 brought CDNA / MI100 (Arcturus) compute support and other "Exascale Era" preparations in making this open-source GPU compute stack competitor more competitive with NVIDIA's CUDA. For now though it's still been leaving out the Navi GPU support.

  • Linux Foundation Public Health Joins The Fight Against COVID-19 Pandemic

    Brian Behlendorf is one of the most respected luminaries of the open-source world. He has been heading the Linux Foundation’s Hyperledger project since its inception and recently took over additional responsibilities of the Linux Foundation Public Health.