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.

A new version of Delta Chat 1.2 for desktop

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A significant new release of Delta Chat Desktop has been introduced — a messenger that uses email as a transport instead of proprietary servers (chat-over-email, a specialized email client functioning as a messenger). The application code is built on the Electron platform and is distributed under the GPLv3 license, while the core library is available under the MPL 2.0 (Mozilla Public License). In this release: a database of providers and email services with […]

Exploring the VoIP engine Mediastreamer2. Part 5

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The material for this article was taken from my Zen channel. Tone Signal Detector In the previous article, we created a signal level meter. In this one, we will learn how to detect a tone signal. In the old days, when not every household had a television, and half of them switched channels using pliers, an intriguing news item appeared in foreign tech press stating that one and […]

How to Install and Use AIDE (Advanced Intrusion Detection Environment) on CentOS 8

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Ahead of the launch of the 'Linux Administrator' course, we prepared a translation of some interesting material. AIDE stands for 'Advanced Intrusion Detection Environment', which is one of the most popular systems for monitoring changes in Linux-based operating systems. AIDE is used to protect against malware, viruses, and to detect unauthorized actions. It is employed for file integrity checks and detection […]

Release of Telegram Desktop Client 2.0

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A new release of Telegram Desktop 2.0 is available for Linux, Windows, and macOS. The client software code for Telegram is written using the Qt library and distributed under the GPLv3 license. The new version introduces the ability to group chats into folders for easier navigation when there are many chats. The option to create custom folders with flexible settings and the ability to link an arbitrary number of […]

Release of cryptographic libraries LibreSSL 3.1.0 and Botan 2.14.0

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The developers of the OpenBSD project have released a portable edition of the LibreSSL 3.1.0 package, which is a fork of OpenSSL aimed at achieving a higher level of security. The LibreSSL project focuses on quality support for SSL/TLS protocols by removing unnecessary functionality, adding additional protections, and conducting significant cleanup and reworking of the codebase. The LibreSSL 3.1.0 release is considered experimental, in which […]

Tips & tricks for working with Ceph in high-load projects

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Using Ceph as a network storage solution in various project load scenarios, we may encounter different challenges that, at first glance, do not seem simple or trivial. For example: migrating data from an old Ceph to a new one while partially utilizing previous servers in the new cluster; solving the issue of disk space allocation in Ceph. As we tackle such challenges, we face […]

The aircraft with aerodynamically shifted center of gravity

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Inventor of the canard, Gustav Lachmann, proposed in the late 1930s to equip the tailless aircraft with a free-floating wing located at the front of the wing. This wing was equipped with a servo control, which was used to adjust its lift force. It served to compensate for the additional pitching moment of the wing that occurred during flap deployment. Since Lachmann was an employee of Handley Page, the company owned the patent for […]

Mitchell Baker has taken the position of head of Mozilla Corporation

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Mitchell Baker, Chair of the Mozilla Corporation Board and leader of the Mozilla Foundation, has been appointed as the CEO of Mozilla Corporation by the board of directors. The position had been vacant since August of last year, following Chris Beard's departure. For eight months, the company attempted to hire an external candidate for the CEO position, but after a series of interviews, the board of directors […]

Qt Company is considering moving to free releases of Qt one year after paid versions.

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Developers of the KDE project are concerned about the shift in Qt framework development towards a limited commercial product being developed without community interaction. In addition to the previously made decision to supply the LTS version of Qt only under a commercial license, Qt Company is considering transitioning to a distribution model for Qt where all releases in the first 12 months are available only to commercial users […]

Minetest 5.2.0

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On April 5, Minetest 5.2.0 was released. Minetest is a sandbox game engine with embedded games. Key new features/changes include: Highlighting GUI buttons in light color when hovered over (visual feedback). Animated images in the formspec interface (new animated_image[] element). The ability to present formspec content in HTML format (new hypertext[] element). New API functions/methods: table.key_value_swap, table.shuffle, vector.angle, and get_flags. Hand inertia has been improved. […]

The fully free AmboVent ventilator project has been published.

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https://1nn0v8ter.rocks/AmboVent-1690-108https://github.com/AmboVent/AmboVent Copyright ©2020. THE AMBOVENT GROUP FROM ISRAEL hereby declares: No Rights Reserved. Anyone in the world has permission to use, copy, modify, and distribute this software and its documentation for educational, research, for profit, business, and not-for-profit purposes, without fee and without a signed licensing agreement, all is hereby granted, provided that the intention […]

Exploring the VoIP engine Mediastreamer2. Part 4

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The material for this article is taken from my Zen channel. Creating a signal level meter In the previous article, we clarified the correct completion of programs using media streamers. In this article, we will assemble a signal level meter circuit and learn how to read measurement results from the filter. We will evaluate measurement accuracy. The set of filters provided by the media streamer includes a filter, MS_VOLUME, which is capable of measuring the root mean square level of the passing […]

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