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today's howtos

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HowTos
  • Record your terminal with script and scriptreplay

    A fascinating thing about humans is that we each have a particular learning style. Some people prefer to read about how something's done. Some people prefer to follow instructions from the start, while others prefer to get an overview before engaging. Other people like to listen to instructions from an instructor or a podcast. And yet another group wants instructions in the form of a video.

    The trouble with video is that it can be difficult to produce and compress, and it is a lot of work to change once it's done. And besides that, viewers can't copy and paste Linux commands out of a video into their terminal.

    [...]

    The script and scriptreplay commands allow you to record a terminal session and then play it back later. There's no video involved. Instead, plain text files called typescripts are used, so the files are small and users can copy commands during playback.

  • How To Install Neos CMS on AlmaLinux 8 - idroot

    In this tutorial, we will show you how to install Neos CMS on AlmaLinux 8. For those of you who didn’t know, Neos CMS is a free and open-source Content Management System (CMS). Neos offers a rich set of features such as inline editing, supports multiple websites on a single installation, built-in SEO tools, human-readable URLs, plugin manager, device preview, and supports multiple templates.

    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 the Neos Open Source Content Application Framework on an AlmaLinux 8. You can follow the same instructions for Fedora, RHEL, CentOS, and Rocky Linux distributions.

  • How to Install and use PHP Composer on AlmaLinux 8

    Composer is a dependency manager for PHP that allows you to download and install all the required PHP packages needed for your project. It is a command-line tool that installs all libraries and dependencies for your project from the packagist.org repository. It is used in modern PHP frameworks such as Laravel, Symfony, Drupal, and Magento 2.
    In this post, we will show you how to install and use Composer on Alma Linux 8.

  • LINUX Basics: How to Move Files in Linux Using mv Command

    One of the most basic operations you'll need to conduct on a Linux system is moving files and folders. You can move or transfer files using the given GUI in any system, but you might be curious if the terminal has a command that allows you to swiftly move files to different directories.

    The mv command is what you're looking for, and it's simple to use because of its short and straightforward syntax. In this tutorial, you'll learn how to move files with the mv command.

  • Getting Started with GNU PSPP with Practical Examples

    This tutorial is a basic guide for GNU PSPP. Divided into three exercises, we hope this will be sufficient for beginners to understand the basics. Now let's start PSPP!

  • How to install FirewallD GUI on Rocky Linux 8 | Almalinux 8 - Linux Shout

    Here in this article, we learned the simple steps and commands to install a graphical user interface (GUI) to manage FirewallD on either Alamlinux or Rocky Linux 8. However, the steps are the same for CentOS, Redhat, Oracle Linux, and other RPM-based distros.

    FirewallD is a command-line tool to provide a system firewall feature to protect Linux unwanted access by disabling and enabling ports and services access to outside or local networks. However, if you are using a Graphical interface user then the command line may seem a little bit difficult to use. Therefore, to make things easy we can use GUI tools available to manage FirewallD such as one from firewall-config or Plasma firewall

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Today in Techrights

today's leftovers

  • Last week of the Month of LibreOffice, May 2022!

    So far, 233 sticker packs have been awarded in the Month of LibreOffice, May 2022. But there’s still one more week to go – so if your name (or username) isn’t on the list, join in, help to make LibreOffice even better, and get some cool swag! We’ll have 10 bonus pieces of merchandise to give away, to 10 lucky people…

  • Firefox Nightly: These Weeks in Firefox: Issue 116
  • Mobiot is a system that lets anyone automate everyday objects

    So many tasks within a house can be reduced to a series of somewhat simple movements that are repeated each time that task is done, thus making it a prime target for automation. To make this process far easier than the traditional one of designing a robot by hand, writing some code and doing thorough testing, a team of researchers from UCLA and Texas A&M has created the Mobiot toolkit, which aims to combine each of these steps into a very straightforward application that takes care of the heavy lifting automatically.

  • Canonical at ISC High Performance 2022 | Ubuntu

    With ISC High Performance 2022 just around the corner, now is a great time to get in touch with Canonical on all things HPC ISC High Performance is one of the main events on High Performance Computing (HPC) and Supercomputing and all relevant topics in that space such as High Performance Data Analytics (HPDA), Artificial Intelligence and Machine Learning (AI/ML). It’s held in Germany each year, this time in Hamburg starting 30th of May and ending on the 1st of June

  • Access JFR data faster with Cryostat 2.1's new download APIs

    Cryostat is a tool for managing JDK Flight Recorder data on Kubernetes. This article explains how new download APIs based on JSON Web Tokens (JWTs) help facilitate a more responsive and efficient download workflow in the Cryostat 2.1 web client.

  • DrKonqi ❤️ coredumpd

    Since Plasma 5.24 DrKonqi, Plasma’s infamous crash reporter, has gained support to route crashes through coredumpd and it is amazing – albeit a bit unused. That is why I’m telling you about it now because it’s matured a bit and is even more amazing – albeit still unused, I hope that will change. To explain what any of this does I have to explain some basics first, so we are on the same page… Most applications made by KDE will generally rely on KCrash, a KDE framework that implements crash handling, to, well, handle crashes. The way this works depends a bit on the operating system but one way or another when an application encounters a fault it first stops to think for a moment, about the meaning of life and whatever else, we call that “catching the crash”, during that time frame we can apply further diagnostics to help later figure out what went wrong. On POSIX systems specifically, we generate a backtrace and send that off to our bugzilla for handling by a developer – that is in essence the job of DrKonqi.

Programming Leftovers

  • Dirk Eddelbuettel: RcppAPT 0.0.9: Minor Update

    A new version of the RcppAPT package with the R interface to the C++ library behind the awesome apt, apt-get, apt-cache, … commands and their cache powering Debian, Ubuntu and the like arrived on CRAN earlier today. RcppAPT allows you to query the (Debian or Ubuntu) package dependency graph at will, with build-dependencies (if you have deb-src entries), reverse dependencies, and all other goodies. See the vignette and examples for illustrations.

  • Botonic: An open-source React framework for building Conversational apps
  • ReacType: Open-source tool to Prototype your React project
  • OpenFeature to Bring Open Source Standard to Feature Flags

    Feature flags are an important part of software development, and with the new open source OpenFeature effort they could become even easier to use.

  • gfldex: Reducing sets
  • What's In That String?

    One of the steps of debugging Perl can be to find out what is actually in a string. There are a number of more-or-less informative ways to do this, and I thought I would compare them. For this I used two short strings. The first was just the concatenation of the characters whose ordinals are 24 through 39; that is, 16 ASCII characters straddling the divide between control characters and printable characters. The second was a small variation on the first, made by removing the last character and appending "\N{U+100}" (a.k.a. "\N{LATIN CAPITAL A WITH MACRON}") to force the string's internal representation to be upgraded. The results given below include the version of the module used, the actual code snippet that generated the output, the output itself, and any comments I thought relevant. All subroutines used to dump strings are exportable except for those called as methods. The sample code makes fully-qualified calls because of duplication of subroutine names between different modules.

Security Leftovers

  • Security updates for Wednesday

    Security updates have been issued by Debian (lrzip and puma), Fedora (plantuml and plib), Oracle (kernel and kernel-container), Red Hat (firefox, kernel, kpatch-patch, subversion:1.14, and thunderbird), Scientific Linux (firefox and thunderbird), SUSE (kernel-firmware, libxml2, pcre2, and postgresql13), and Ubuntu (accountsservice, postgresql-10, postgresql-12, postgresql-13, postgresql-14, and rsyslog).

  • The Linux Foundation's "security mobilization plan" [Ed: Making up numbers for a FUD campaign led by proprietary software companies that make back doors for the NSA]

    The Linux Foundation has posted an "Open Source Software Security Mobilization Plan" that aims to address a number of perceived security problems with the expenditure of nearly $140 million over two years.

  • Our build and release infrastructure, and upcoming updates | F-Droid - Free and Open Source Android App Repository

    Behind the scenes of F-Droid is a giant pile of automation to manage the process of building thousands of apps from source. This means checking out thousands of source repos, checking them all for updates, building and new releases, and securely signing them en masse. All builds are run in a fresh virtual machine guest instance known as the buildserver. All Gradle binaries and Android SDK packages are verified against our public logs of observed SHA-256 checksums. The transparency log processes also verify against upstream’s public checksums. Our setup runs on Debian almost exclusively. Debian is a leader in free software, rock solid servers, and reproducible builds. That makes it a natural home for F-Droid. We also work to ensure we maintain the packages we use, and build our processes on top of Debian packages. That means we share the maintenance with anything that uses Debian. It may seem like more work to give back, but our experience is that it pays off in the long run. The F-Droid community is able to maintain many things with a small team. Another example of this is this website itself: it is built using Jekyll packages that are all in Debian.

  • F-Droid: Our build and release infrastructure, and upcoming updates

    Here's an update from F-Droid regarding upcoming changes to its build and distribution infrastructure.

  • Tails 5.0 Linux users warned against using it "for sensitive information" [Ed: Microsoft-connected site shedding doubt on "Linux"]

    Tails developers have warned users to stop using the portable Debian-based Linux distro until the next release if they're entering or accessing sensitive information using the bundled Tor Browser application.

  • CISA Adds 34 Known Exploited Vulnerabilities to Catalog [Ed: Lots and lots of Microsoft. Actively exploited.]

    CISA has added 34 new vulnerabilities to its Known Exploited Vulnerabilities Catalog, based on evidence of active exploitation. These types of vulnerabilities are a frequent attack vector for malicious cyber actors and pose significant risk to the federal enterprise. Note: to view the newly added vulnerabilities in the catalog, click on the arrow on the of the "Date Added to Catalog" column, which will sort by descending dates.

  • Google Releases Security Updates for Chrome

    Google has released Chrome version 102.0.5005.61 for Windows, Mac, and Linux. This version addresses vulnerabilities that an attacker could exploit to take control of an affected system.

  • Stable Channel Update for Desktop
  • Google has been DDoSing SourceHut for over a year

    Just now, I took a look at the HTTP logs on git.sr.ht. Of the past 100,000 HTTP requests received by git.sr.ht (representing about 2½ hours of logs), 4,774 have been requested by GoModuleProxy — 5% of all traffic. And their requests are not cheap: every one is a complete git clone. They come in bursts, so every few minutes we get a big spike from Go, along with a constant murmur of Go traffic. This has been ongoing since around the release of Go 1.16, which came with some changes to how Go uses modules. Since this release, following a gradual ramp-up in traffic as the release was rolled out to users, git.sr.ht has had a constant floor of I/O and network load for which the majority can be attributed to Go. I started to suspect that something strange was going on when our I/O alarms started going off in February 2021 (we eventually had to tune these alarms up above the floor of I/O noise generated by Go), correlated with lots of activity from a Go user agent. I was able to narrow it down with some effort, but to the credit of the Go team they did change their User-Agent to make more apparent what was going on. Ultimately, this proved to be the end of the Go team’s helpfulness in this matter.