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today's howtos

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HowTos
  • Linux Mint’s Sticky Note App Looks Great Now! Here’s how to get it in Ubuntu | UbuntuHandbook

    For those looking for Google Keep or Windows Sticky Notes style desktop noting app, Linux Mint’s “sticky” is a good choice for Ubuntu Linux.

    Linux Mint maintains some great apps. Sticky is one of them that sticks an electronic version of Post-it Note on your desktop. It’s GTK3 app written in Python3 and works on most desktop environments.

    With it, you may create as many notes as possible on desktop. And, it allows to set different color palette for each note: Blue, Green, Magenta, Orange, Purple, Red, Teal, and Yellow.

  • Getting Started with Docker: Portainer CE - LinuxLinks

    There are some great tools that make Docker easier to use.

    One of our favourites is Portainer. It’s a lightweight and easy to use management UI that lets us easily manage our different Docker environments. Its simple graphical interface is accessed with a web browser. The community edition is free and open source software. Portainer works with Docker, Docker Swarm and Kubernetes. It can be deployed in the cloud on prem or at the edge.

    Portainer supports a wide range of features for managing the Docker containers, such as managing the creation and deletion of Swarm services, user authentication, authorizations, connecting, executing commands in the console of running containers, and viewing containers’ logs.

    Portainer consists of a single container that can run on any cluster.

  • exa: A Modern Replacement for the ls Command

    I bet you have used the ls command in Linux. It’s one of the first command you use while learning Linux commands.

    The simple ls command is quite handy for listing directory content. I never really though any command could replace it until I discovered exa.

  • How To Install KeePass on Linux Mint 20 - idroot

    In this tutorial, we will show you how to install KeePass on Linux Mint 20. For those of you who didn’t know, KeePass is an open-source cross-platform password manager filled with multiple amazing features. It lets you save as many passwords as you wish hence freeing you from the hassle of memorizing and recalling your passwords every time you wish to access an account. If you are using LastPass, Bitwarden, AnyPAssword, and many others, then importing passwords from them is also possible in KeePass. The KeePass password manager can also be used very efficiently with the Windows, macOS, iOS, or even Android operating systems.

    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 the step-by-step installation of a KeePass password manager on a Linux Mint 20 (Ulyana).

  • How to install VMware Workstation on Ubuntu 20.04 - Unixcop the Unix / Linux the admins deams

    VMware Workstation Pro (known as VMware Workstation until release of VMware Workstation 12 in 2015) is a hosted hypervisor that runs on x64 versions of Windows and Linux operating systems.

    It enables users to set up virtual machines (VMs) on a single physical machine and use them simultaneously along with the host machine. Each virtual machine can execute its own operating system.

    In this tutorial, we will illustrate how to install VMware Workstation on Ubuntu systems.

  • Linux Essentials - nano (command-line text editor) - Invidious

    When you're working with Linux servers, you may or may not always have access to a GUI, which is why it's important to learn at least one command-line text editor. In this video, we'll explore the core fundamentals of nano. nano is a text editor that's among the easiest to learn.

  • Sequence – making PatternDB creation for syslog-ng easier - Blog - syslog-ng Community - syslog-ng Community

    We are well into the 21st century, but most of the log messages still arrive in an unstructured format. For well over a decade, syslog-ng had a solution to turn unstructured messages into name-value pairs, called PatternDB. However, creating a pattern database for PatternDB from scratch is a source of major pain. Or rather, it was: sequence-rtg – a fork of the sequence log analyzer – provides a new hope! It can easily create ready-to-use patterns for your most frequent log messages.

    Sequence-rtg is still in beta phase, and therefore is a bit rough around the edges. However, once you deal with the initial struggles of creating the database, it works just fine. Especially if you have lots of log messages. My experience was that the more log messages and larger batch sizes I had, the better quality patterns were generated.

Linux Mint’s (Ace) Sticky Notes App Works Great on Ubuntu

  • Linux Mint’s (Ace) Sticky Notes App Works Great on Ubuntu

    I used to use real post-it notes in real life. A ton of them. I’d use them remind me to buy cat food, put the bins out, and unclog the sink. But most of my sticky notes ended up face down on my desk, dog eared and ignored (or, on more than one occasion stuck to the back of the cat).

    These days I keep on top of my to-do list using desktop (and mobile) apps. The latest version of Linux Mint comes with a standout one preinstalled called Sticky.

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More in Tux Machines

Ubuntu 21.04 (Hirsute Hippo) Reached End of Life, Upgrade to Ubuntu 21.10 Now

Dubbed by Canonical as the “Hirsute Hippo,” Ubuntu 21.04 was released nine months ago, on April 22nd, 2021. It was the first Ubuntu release to use the next-generation Wayland display server by default for its Ubuntu Desktop flavor, which uses a modified version of the GNOME desktop environment. Ubuntu 21.04 didn’t make the plunge into the GNOME 40 desktop environment series due to its redesigned Activities Overview, but it did ship with support for GNOME 40 apps while being built on top of the older GNOME 3.38 desktop environment series. Read more

today's leftovers

  • Supplino is a variable benchtop power supply that you can build yourself | Arduino Blog

    Working with electronics requires access to stable power in a variety of voltages. Some components require 3.3V and others require 5V. Still others need 9V or 12V — there are many possibilities. You could keep a variety of wall warts on hand, but a variable benchtop power supply is a more convenient option. Supplino is one choice and this guide from Giovanni Bernardo and Paolo Loberto will walk you through how to build one. Supplino can accept anything from 4 to 40 volts and can output anything from 1.25 to 36 volts, with a maximum of 5A. An XH-M401 module with an XL4016E1 DC-DC buck converter handles the voltage regulation. Technically, you could use that alone to power your components. But the addition of an Arduino Nano board (or Nano Every) makes the experience far friendlier. It monitors the power supply output and drives a 1.8″ 128×160 TFT LCD screen, which displays the present voltage, amperage, and wattage.

  • Relocating Fedora's RPM database [LWN.net]

    The deadlines for various kinds of Fedora 36 change proposals have mostly passed at this point, which led to something of a flurry of postings to the distribution's devel mailing list over the last month. One of those, for a seemingly fairly innocuous relocation of the RPM database from /var to /usr, came in right at the buzzer for system-wide changes on December 29. There were, of course, other things going on around that time, holidays, vacations, and so forth, so the discussion was relatively muted until recently. Proponents have a number of reasons why they would like to see the move, but there is resistance, as well, that is due, at least in part, to the longstanding "tradition" of the location for the database.

  • CPU Isolation – A practical example – by SUSE Labs (part 5)
  • How to install Mantis bug tracker on Debian 11?

    Hello friends. In this post, you will learn how to install Mantis Bug Tracker on Debian 11.

Server: MongoDB vs. DynamoDB, Mirantis, and More

  • MongoDB vs. DynamoDB: What you need to know

    NoSQL databases have become more popular because of the need for more flexible backend solutions. These databases run applications that require a more flexible data structure than traditional structured databases can provide. Robust feature-rich NoSQL database platforms famous for NoSQL databases include MongoDB and DynamoDB. This article guide will compare these two databases to help you choose the right one for your project.

  • Mirantis brings secure registries to Kubernetes distros | ZDNet

    Mirantis Secure Registry, formerly Docker Trusted Registry, provides an enterprise-grade container registry solution. You can use this as a foundation to build a secure software supply chain. It does this by providing you with access to a container image registry that has enhanced levels of security beyond that of public registries. This, in turn, gives you more control over this critical part of their software supply chain. The comprehensive, built-in security enables users to verify and trust the automated operations and integration with Continuous Integration/Continuous Delivery (CI/CD) pipelines to speed up application testing and delivery. You can use MSR alongside your other apps in any standard Kubernetes 1.20 and above distribution, via standard Helm techniques. While the new MSR is no longer integrated with Mirantis Kubernetes Engine (MKE) as it was earlier, it still runs as well as ever on MKE as it does with any other supported Kubernetes distribution.

  • How North Dakota Is More Like Windows than UNIX

    If your official name is YATES, you can't (and presumably needn't) file a petition to change it to Yates. "Petitioners have offered no authority or reasoned argument that there is any legal significance to the capitalization of their names."

  • The Success of ‘Open-hearted’ Partnerships in the Cloud | SUSE Communities

    The future is open — and it’s better together. At SUSE, we pride ourselves on our partnerships, and sometimes what we can achieve together surpasses even our greatest hopes. That’s what our award-winning, cloud-based, high-performance computing (HPC) partnership with UberCloud, Dassault Systèmes, and Google Cloud achieved, by enabling 3DT Holdings researchers to create an affordable, real-time heart surgery simulator for physicians to use when it matters most. This is an ongoing relationship with the Living Heart Project that we think is just the beginning of what this ground-breaking research can achieve — and the lives it can save.

Programming Leftovers

  • An outdated Python for openSUSE Leap [LWN.net]

    Enterprise distributions are famous for maintaining the same versions of software throughout their, normally five-year-plus, support windows. But many of the projects those distributions are based on have far shorter support periods; part of what the enterprise distributions sell is patching over those mismatches. But openSUSE Leap is not exactly an enterprise distribution, so some users are chafing under the restrictions that come from Leap being based on SUSE Enterprise Linux (SLE). In particular, shipping Python 3.6, which reached its end of life at the end of 2021, is seen as problematic for the upcoming Leap 15.4 release. [...] OpenSUSE and SLE have generally been aligned over the years. In 2020, Leap and SLE grew even closer together. The build system and repositories between the two were shared starting with Leap 15.2, which corresponded to the second "service pack" (SP) of SLE (i.e. SLE 15-SP2). In 2021, with Leap 15.3 and SLE 15-SP3, the two distributions effectively merged, such that all of the base packages were shared between the two. To a first approximation, Leap is an openSUSE-branded version of SLE, much like what CentOS used to be for Red Hat Enterprise Linux.

  • Make Your Python CLI Tools Pop With Rich | Hackaday

    It seems as though more and more of the simple command-line tools and small scripts that used to be bash or small c programs are slowly turning into python programs. Of course, we will just have to wait and see if this ultimately turns out to be a good idea. But in the meantime, next time you’re revamping or writing a new tool, why not spice it up with Rich?

  • An outdated Python for openSUSE Leap [LWN.net]

    Enterprise distributions are famous for maintaining the same versions of software throughout their, normally five-year-plus, support windows. But many of the projects those distributions are based on have far shorter support periods; part of what the enterprise distributions sell is patching over those mismatches. But openSUSE Leap is not exactly an enterprise distribution, so some users are chafing under the restrictions that come from Leap being based on SUSE Enterprise Linux (SLE). In particular, shipping Python 3.6, which reached its end of life at the end of 2021, is seen as problematic for the upcoming Leap 15.4 release. [...] OpenSUSE and SLE have generally been aligned over the years. In 2020, Leap and SLE grew even closer together. The build system and repositories between the two were shared starting with Leap 15.2, which corresponded to the second "service pack" (SP) of SLE (i.e. SLE 15-SP2). In 2021, with Leap 15.3 and SLE 15-SP3, the two distributions effectively merged, such that all of the base packages were shared between the two. To a first approximation, Leap is an openSUSE-branded version of SLE, much like what CentOS used to be for Red Hat Enterprise Linux.

  • Make Your Python CLI Tools Pop With Rich | Hackaday

    It seems as though more and more of the simple command-line tools and small scripts that used to be bash or small c programs are slowly turning into python programs. Of course, we will just have to wait and see if this ultimately turns out to be a good idea. But in the meantime, next time you’re revamping or writing a new tool, why not spice it up with Rich?