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.

Design of the Virtualized Data Center

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Introduction An information system, from the user's perspective, is well defined in GOST RV 51987 as "an automated system, the result of which is the presentation of output information for subsequent use." If we consider the internal structure, any IS essentially consists of a system of interconnected algorithms implemented in code. Broadly speaking, according to the Turing-Church thesis, an algorithm (and hence the IS) performs a transformation of a set of input […]

The Sapsan-Bekas system disables drones at a distance of over 6 km

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The Concern "Avtomatika," part of the state corporation Rostec, presented the advanced complex "Sapsan-Bekas" at the International Military-Technical Forum "Army-2019," designed to counter unmanned aerial vehicles (UAVs). "Sapsan-Bekas" is a mobile system built on a compact van chassis. The complex is reported to be capable of disabling both civilian and military drones. "Sapsan-Bekas" can monitor the airspace around the clock and recognize aerial objects […]

The official website of HongMeng OS turned out to be a forgery

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Some time ago, it became known that an official website dedicated to Huawei's operating system HongMeng OS appeared on the Internet. It contained various information, including technical specifications of the platform, news, and more. Initially, many found the website to be odd. It featured outdated information, and the visual design was rather informal […]

Release of the Trident 19.06 OS from the TrueOS project

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The release of the Trident 19.06 operating system has taken place, during which a user-friendly graphical distribution based on FreeBSD technologies is being developed by the TrueOS project, reminiscent of earlier releases of PC-BSD and TrueOS. The installation ISO image size is 3 GB (AMD64). As part of the Trident project, the Lumina graphical environment and all previously available graphical tools from PC-BSD are also being developed.

Microsoft has published a repository with its modifications for the Linux kernel

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Microsoft has published all changes and additions to the Linux kernel used in the kernel provided for the WSL 2 (Windows Subsystem for Linux v2) subsystem. The second edition of WSL features a complete Linux kernel instead of an emulator that dynamically translates Linux system calls into Windows system calls. The availability of the source code allows enthusiasts to create their own builds of the Linux kernel if desired.

Protocol “Entropy.” Part 5 of 6. Eternal Sunshine of the Spotless Mind

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Caution: the text includes scenes of smoking. Smoking can harm your health. (21+) Advertising Law Leaves from the Tree of Knowledge In the morning, sharp at nine o'clock, I was at the entrance to the third, most mysterious pure white sphere, trying to make a favorable impression on Marat Ibrahimovich with my punctuality. This was to ensure that the laboratory demonstration would not be postponed indefinitely again. In the distance, I …

The book "Kafka Streams in Action: Applications and Microservices for Real-Time Processing"

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Hello, Habrozhiteli! This book is suitable for any developer who wants to understand stream processing. Understanding distributed programming will help you learn Kafka and Kafka Streams more effectively. It would be great to know the Kafka framework itself, but it's not necessary: I will tell you everything you need. Experienced Kafka developers, as well as newcomers, will master the creation of interesting applications with this book […]

Two-factor authentication on the website using a USB token. Now available for Linux as well.

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In one of our previous articles, we discussed the importance of two-factor authentication on corporate company portals. Last time, we demonstrated how to set up secure authentication in the IIS web server. In the comments, we were asked to write a guide for the most common web servers on Linux — nginx and Apache. You asked — we wrote. What do you need to get started? Any modern […]

Qt 3D Studio 2.4

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A new version of Qt 3D Studio has been released — an editor for creating three-dimensional interfaces and interactive presentations from the Qt framework bundle. One of the main innovations is a radical increase in performance of the runtime component on desktop graphics cards compared to the previous version — 565%, according to the developers' own measurements. This improvement is attributed to a return to the use of OpenGL and a departure from the trends seen in previous versions […]

How I Organized Machine Learning Trainings at NSU

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My name is Sasha, and I love machine learning as well as teaching people. I am currently supervising educational programs at the Computer Science center and leading the undergraduate data analysis program at St. Petersburg State University. Previously, I worked as an analyst at Yandex, and before that, I was a researcher involved in mathematical modeling at the Institute of Computational Technologies of the Russian Academy of Sciences. In this post, I want to share what came out of the idea […]

Two-factor authentication on the site using a USB token. How to make access to the service portal secure?

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Hackers gained access to the main email server of the international company Deloitte. The administrator account of this server was protected only by a password. Independent Austrian researcher David Wind received a reward of $5,000 for discovering a vulnerability on the Google intranet login page. 91% of Russian companies hide facts about data breaches. Such news can be found almost every day […]

WorldSkills module Network task solutions in the ‘CISA’ competency. Part 2 — Basic Configuration

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We continue to analyze the tasks of the Network module of the WorldSkills championship in the specialty 'Network and System Administration'. This article will cover the following tasks: On ALL devices, create virtual interfaces, subinterfaces, and loopback interfaces. Assign IP addresses according to the topology. Enable the SLAAC mechanism for issuing IPv6 addresses in the MNG network on router RTR1's interface; On virtual interfaces in VLAN 100 […]

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