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.

Chewing over logistic regression

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In this article, we will discuss the theoretical derivation of transforming the linear regression function into the inverse logit transformation function (also known as the logistic response function). Then, utilizing the arsenal of the maximum likelihood method, according to the logistic regression model, we will derive the Logistic Loss function, or in other words, we will define the function that is used to optimize the weight vector parameters in the logistic regression model […]

How to Teach Overcoming Challenges and Writing Loops

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Although this is about one of the basic topics, this article is written for experienced professionals. The aim is to highlight the misconceptions that beginners often have in programming. For practicing developers, these issues have long been resolved, forgotten, or simply not noticed. The article may be useful if you suddenly need to assist someone with this topic. The article covers […]

Simulating Network Issues in Linux

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Hello everyone, my name is Sasha, and I lead backend testing at FunCorp. Like many others, we have implemented a service-oriented architecture. On one hand, this simplifies work, as each service is easier to test individually, but on the other hand, it creates the need to test the interactions between services, which often happen over the network. In this article, I will share about […]

Docker Tips: Clean Up Your Machine from Clutter

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Hello, Habr! I present to you a translation of the article 'Docker Tips: Clean Up Your Local Machine' by Luc Juggery. Today, we will discuss how Docker uses the disk space of the host machine, as well as how to clear this space from the remnants of unused images and containers. Overall Docker consumption is pretty cool; probably, not many today in […]

Mainstream. Honorable workers of labor. Biographical novel

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Publisher "Library of the Proletarian". In this novel, the author depicts the challenging fate of the working class in the software development industry. It discusses honorable workers and the development of personal relationships amidst memory shortages. Highly recommended. /*Critic*/ All coincidences are not accidental. C++ has a complex personality due to a difficult childhood. It grew up in the hungry '80s and remembers how often there wasn’t enough space even for […]

Root vulnerability in sudo affecting Linux Mint and Elementary OS

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A vulnerability has been discovered in the sudo utility, which is used to execute commands on behalf of other users (CVE-2019-18634). This vulnerability allows users to escalate their privileges to the root user. The problem exists starting from sudo version 1.7.1 only when using the 'pwfeedback' option in the /etc/sudoers file, which is disabled by default but enabled in some distributions, such as Linux Mint and Elementary OS. […]

Release of the LibreOffice 6.4 office suite.

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The Document Foundation has released the office suite LibreOffice 6.4. Ready-to-install packages have been prepared for various distributions of Linux, Windows, and macOS, as well as a version for deploying the online version in Docker. During the release preparation, 75% of the changes were made by employees of the companies overseeing the project, such as Collabora, Red Hat, and CIB, while 25% of the changes were added by independent enthusiasts. Key innovations: […]

The public hosting Heptapod has been announced for open projects using Mercurial.

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The developers of the Heptapod project, which is developing a fork of the open collaborative development platform GitLab Community Edition adapted for the Mercurial version control system, have announced the launch of a public hosting for Open Source projects (foss.heptapod.net) that use Mercurial. The Heptapod code, like GitLab, is distributed under the MIT open license and can be used to deploy similar code hosting on your own servers. […]

Linux Mint has released a new desktop computer "MintBox 3".

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A new mini-computer called 'MintBox 3' has been released. There are Basic ($1399) and Pro ($2499) models. The difference in price and specifications is quite large. The 'MintBox 3' comes with Linux Mint pre-installed. Key specifications for the Basic version: 6 cores 9th generation Intel Core i5-9500, 16 GB RAM (can be upgraded up to 128 GB), 256 GB Samsung NVMe SSD (can be upgraded to 2x […]

C++ Siberia 2020

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On February 28-29, we will celebrate the end of winter by heating our brains to the maximum possible temperature. At the upcoming C++ Siberia, we will discuss concurrency, functional programming, reflection, new standards, and epic committee failures. Speakers will include Timur Dumler, Anton Polukhin, Vitaly Bragilevsky, and others. The conference will take place at the lecture-bar POTOK, located at Novosibirsk, Deputatskaya, 46. See you at the conference! Source: linux.org.ru

Solve the unsolvable.

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I often get criticized at work for one strange quality – sometimes I take too long to tackle a task, whether it's managerial or programming, which seems unsolvable. It feels like it’s time to give up and move on to something else, but I just keep digging and digging. It turns out that it's not so simple. I recently read a wonderful book that explained everything again. I love that – here […]

Weaning Rules

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What happens if you feed a two-month-old baby a Big Mac? What happens if you set a 60 kg weightlifter to deadlift 150 kg in their first week of training? What happens if you stick a couple of nails into a meat grinder at 200? It's about the same as giving an intern a task to refine PouchDB to work with PostgreSQL. Here we have a company […]

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