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The Time of Firsts. A story of how we implemented Scratch as a programming language for robots

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Looking at the current diversity of educational robotics, it's heartening that children have access to a huge variety of kits and ready-made products, and that the entry barrier for programming basics has been lowered significantly (even down to kindergarten). There is a growing trend toward initially engaging with modular and block programming, followed by a transition to more advanced languages. However, this situation wasn't always the case. In 2009-2010, Russia started to massively […]

Where the Fairytale Leads

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September is coming to an end, and with it, the calendar of "adventures" of the Fairy Tale — a series of tasks that develop at the intersection of the real world and other, virtually-imagined ones. Below you will find the second part of my personal impressions related to "completing" these "quests". The beginning of the "adventures" (events from September 1 to 8) and a brief introduction are described here. The concept is globally outlined here. The fairy tale continues on September 9. […]

Digital Workspace architecture on the Citrix Cloud platform

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Introduction This article describes the capabilities and architectural features of the Citrix Cloud platform and the Citrix Workspace service set. These solutions are central elements and the foundation for implementing the digital workspace concept from Citrix. In this article, I attempted to understand and articulate the cause-and-effect relationships between cloud platforms, services, and Citrix subscriptions, the description of which is in the public […]

Creating a stateful skill for Alice using serverless functions of Yandex.Cloud and Python

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Let's start with the news. Yesterday, Yandex Cloud announced the launch of its serverless computing service, Yandex Cloud Functions. This means you only write the code for your service (such as a web application or chatbot), and the Cloud itself creates and manages the virtual machines where it runs, even replicating them if the load increases. You don't have to think about it at all; it's very convenient. And you only pay for the time […]

openITCOCKPIT for everyone: Hacktoberfest

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Hacktoberfest 2019 Celebrate Hacktoberfest by participating in the open-source community. We would like to ask you to help us translate openITCOCKPIT into as many languages as possible. Absolutely anyone can join the project; all you need is a GitHub account. About the project: openITCOCKPIT is a modern web interface for managing monitoring environments based on Nagios or Naemon. Participation details […]

GNOME has transitioned to using systemd for session management

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Starting with version 3.34, GNOME has fully transitioned to the systemd user session toolkit. This change is completely transparent to both users and developers (XDG-autostart is supported) — apparently, that’s why it went unnoticed on LOR. Previously, only DBUS-activated sessions were launched using user sessions, while everything else was handled by gnome-session. Now this unnecessary layer has finally been removed. Interestingly, […]

Updates for Ruby 2.6.5, 2.5.7, and 2.4.8 addressing vulnerabilities.

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Corrective releases for the Ruby programming language 2.6.5, 2.5.7, and 2.4.8 have been issued, addressing four vulnerabilities. The most critical vulnerability (CVE-2019-16255) is in the standard Shell library (lib/shell.rb), which allows for code injection. If user-provided data is processed as the first argument in the Shell#[] or Shell#test methods used to check for file presence, an attacker could invoke arbitrary Ruby methods. Other […]

The plan to discontinue support for TLS 1.0 and 1.1 in Chrome

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Similar to Firefox, Chrome plans to soon halt support for the TLS 1.0 and TLS 1.1 protocols, which are being classified as obsolete and not recommended by the IETF (Internet Engineering Task Force) for use. Support for TLS 1.0 and 1.1 will be disabled in Chrome 81, scheduled for March 17, 2020. According to Google, […]

Why would you need support service that does not support?

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Companies are announcing artificial intelligence in their automation, discussing how they have implemented a couple of cool customer service systems, but when we call technical support, we continue to suffer and listen to the anguished voices of operators with well-rehearsed scripts. You’ve probably noticed that we in IT are much more perceptive and critical of the work of numerous customer support services from service centers, IT outsourcers, auto services, information services […]

OVEN PLC110[M02]-MS4, HMI, OPC, and SCADA, or how much chamomile tea a person needs. Part 1

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Good day, dear readers of this article. I am writing this in a review format. A small warning: I want to caution that if you immediately understood what the title refers to, I advise changing the first point (the PLC core itself) to anything from the pricing category one level higher. No savings are worth the amount of nerves it takes, subjectively speaking. For those who are not intimidated by a little gray hair and […]

Permissions in Linux (chown, chmod, SUID, GUID, sticky bit, ACL, umask)

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Hello everyone. This is a translation of an article from the book RedHat RHCSA RHCE 7 RedHat Enterprise Linux 7 EX200 and EX300. Personally: I hope this article will be useful not only for beginners but also help more experienced administrators organize their knowledge. So, let’s get started. To access files in Linux, permissions are used. These permissions are assigned to three entities: the file owner, the owner […]

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