ProHoster > Articles on: Yuri Gagarin

Author: Yuri Gagarin

A technical specialist at ProHoster with over six years of experience in server administration, VPN solutions, and network security. I manage infrastructure setup and support, monitor service stability, and implement solutions to protect client data. I also contribute to performance optimization and compliance with modern security and privacy requirements.

Introduction to Puppet

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Puppet is a configuration management system. It is used to bring hosts to the desired state and maintain that state. I have been working with Puppet for over five years. This text is essentially a translated and rearranged compilation of key points from the official documentation that will help newcomers quickly grasp the essentials of Puppet. Basic Information The Puppet operating model is client-server, although a serverless version with limited functionality is also supported. It uses […]

The Vulkan driver RADV has been switched to use the ACO shader compilation backend.

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In the codebase used to produce the Mesa 20.2 release, the RADV Vulkan driver for AMD chips has switched to the default backend for shader compilation, "ACO", developed by Valve as an alternative to the LLVM shader compiler. This change will lead to improved game performance and reduced loading times. To revert to the old backend, the environment variable "RADV_DEBUG=llvm" is provided. […]

curl 7.71.0 release with the fix of two vulnerabilities

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A new version of the utility for receiving and sending data over the network — curl 7.71.0 — is now available, enabling flexible request formation with parameters such as cookie, user_agent, referer, and any other headers. cURL supports HTTP, HTTPS, HTTP/2.0, HTTP/3, SMTP, IMAP, POP3, Telnet, FTP, LDAP, RTSP, RTMP, and other network protocols. Simultaneously, an update was released for the concurrently developed library […]

The ns-3 network simulator textbook is now available as a single PDF file

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After completing the publication of the translations of the final chapters of the textbook, I’d like to offer it as a single PDF file, complete with a table of contents and an alphabetical index. The file is on Google Drive: textbook. If you find any errors or discrepancies in the spirit and meaning of the original document while reading, please send your comments to the email address provided in the file on the page after the table of contents. Source: habr.com

ns-3 Network Simulator Textbook. Chapters 1, 2

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This article opens a series of publications translating the book "ns-3 Tutorial Release ns-3.29" on the ns-3 network simulator. This document is a translation of the original English document, which is written in reStructuredText for Sphinx and stored in the doc/tutorial directory of the ns-3 source code. 1 Introduction 1.1 About ns-3 1.2 For ns-2 Users 1.3 Participating in the Project 1.4 Guide Organization 2 […]

Gathering logs with Loki

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At Badoo, we constantly monitor emerging technologies and evaluate whether to incorporate them into our system. One such study we would like to share with the community is dedicated to Loki—a log aggregation system. Loki is a solution for storing and viewing logs, and this stack provides a flexible system for analyzing them and sending data to Prometheus. […]

The Galaxy Note 20 Ultra camera will focus on photo quality rather than numbers.

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According to a new leak, the Samsung Galaxy Note 20 Ultra will feature a main camera with 50x zoom capability. This appears to be a step back from the 100x zoom boasted by the Galaxy S20 Ultra. However, sources report that this time the company has decided to focus on image quality and user experience rather than just numbers in the specifications. This news […]

Mozilla has introduced a third DNS-over-HTTPS provider for Firefox.

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Mozilla has reached an agreement with a third DNS provider for DNS over HTTPS (DoH) for Firefox. Alongside the previously offered DNS servers from CloudFlare ("https://1.1.1.1/dns-query") and NextDNS (https://dns.nextdns.io/id), Comcast's service (https://doh.xfinity.com/dns-query) will also be included in the settings. You can activate DoH and choose a provider in the network connection settings. Recall that experimental DNS over HTTPS checks were enabled in Firefox 77 […]

Release of PhotoGIMP 2020, a GIMP modification styled after Photoshop

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The PhotoGIMP project release is now available, developing an add-on for the GIMP 2.10.x graphics editor that makes its interface and behavior more familiar for users acquainted with Adobe Photoshop. Changes include a redesign of settings, menu and control panel layouts, the inclusion of extended fonts, replacement of some icons, additional filters (for instance, the Heal Selection filter has been added), and modifications to keyboard shortcuts. A package is available for download […]

Fedora intends to use the nano text editor by default instead of vi.

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For Fedora 33, a change is planned to switch the default text editor to nano. The proposal was submitted by Chris Murphy from the Fedora Workstation development team but has not yet been approved by the FESCo (Fedora Engineering Steering Committee), which is responsible for the technical aspects of Fedora's development. The motivation for using nano as the default instead of vi […]

Planned for implementation in Fedora 33 is

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Last night at the 'Perl and Raku Conference in the Cloud', Sawyer X announced the major version change of Perl from 5 to 7. Work is already underway, and the new version will be released within a year. Don't expect a lot of changes; briefly put, Perl 7 is still the same Perl 5.32 with modern default settings. You no longer have to […]

MLOps: DevOps in the World of Machine Learning

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In 2018, the term MLOps emerged in professional circles and at conferences dedicated to AI, quickly establishing itself in the industry and now evolving as a distinct field. In the future, MLOps could become one of the most sought-after areas in IT. What exactly is it and how is it utilized? Let's delve into that. What is MLOps MLOps (the combination of […]

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