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.

Setting up automatic acquisition of letsencrypt certificates using docker on linux

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I recently changed my virtual server and had to set everything up from scratch. I prefer that the site is accessible over https, and that Let's Encrypt certificates are obtained and renewed automatically. This can be achieved by using two Docker images: nginx-proxy and nginx-proxy-companion. This guide explains how to set up a Docker site with a proxy that automatically fetches SSL certificates. A CentOS 7 virtual server is used. I […]

How we used delayed replication for disaster recovery with PostgreSQL

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Replication is not backup. Or is it? Here’s how we used delayed replication for recovery after accidentally deleting shortcuts. Infrastructure experts at GitLab are responsible for running GitLab.com — the largest instance of GitLab in existence. With 3 million users and nearly 7 million projects, it is one of the largest open-source SaaS sites with dedicated architecture. Without a system […]

Unity Package Manager

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Unity is a platform that has been around for quite some time and is constantly evolving. However, when working on multiple projects simultaneously, one can still encounter difficulties using shared source files (.cs), libraries (.dll), and other assets (images, sounds, models, prefabs). In this article, we will share our experience with a native solution to such problems for Unity. Methods […]

Are humans rational? No longer.

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Many people still believe in the misconception that they act predominantly rationally and sensibly. However, science and practical psychology have long concluded that human behavior is irrational and unreasonable in most life situations. This is neither good nor bad; it simply is. I offer you a selection of authors and books that provide compelling arguments […]

[in bookmarks] Bash for Beginners: 21 Useful Commands

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The material we are publishing today is intended for those who want to master the Linux command line. Being able to effectively use this tool can save a significant amount of time. In particular, we will discuss the Bash shell and 21 useful commands. We will also talk about how to use command flags and Bash aliases, which allow you to speed up the input of lengthy […]

5 typical interview questions on JavaScript: breakdown and solutions

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From the Translator: We have published an article by Maria Perna that discusses the typical JavaScript tasks most often offered to developer candidates during interviews. This article will be particularly useful for beginner programmers. Interviews at tech companies have long been the stuff of legend. It's no surprise — successfully passing an interview opens the door to a good job. But […]

Bash Scripts: Introduction

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Bash Scripts: Introduction Bash Scripts, Part 2: Loops Bash Scripts, Part 3: Parameters and Command Line Options Bash Scripts, Part 4: Input and Output Bash Scripts, Part 5: Signals, Background Tasks, Script Control Bash Scripts, Part 6: Functions and Library Development Bash Scripts, Part 7: Sed and Text Processing Bash Scripts, Part 8: The Awk Data Processing Language Bash Scripts, Part 9: Regular Expressions Bash Scripts, […]

Improving network security by using a cloud analyzer

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In the view of the uninitiated, the job of a security administrator seems like an exciting duel between an anti-hacker and malicious hackers who continually invade the corporate network. Our hero deftly parries their bold attacks with swift command inputs in real time, ultimately emerging as the shining victor. Truly a royal musketeer, armed with a keyboard instead of a sword and musket. And on […]

DHCP+Mysql server on Python

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The goal of this project was: To study the DHCP protocol while working in an IPv4 network To learn Python (a bit more than from scratch 😉 ) replacing the DB2DHCP server (my fork), the original here, which has become increasingly difficult to compile under the new OS. Moreover, I dislike that the binary, which cannot be 'swapped out right now', is expected to provide a functioning DHCP server with the option […]

KnowledgeConf: we need to have a serious talk about the reports

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On the first day of spring (or the fifth month of winter, depending on your perspective), the submission period for KnowledgeConf — a conference on knowledge management in IT companies — came to an end. I must admit, the results of the Call for Papers exceeded all expectations. Yes, we knew the topic was relevant; we saw this at other conferences and meetups, but that it would uncover so many new facets and angles — […]

You can now delete any messages in Telegram

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An update numbered 1.6.1 has been released for the Telegram messenger, introducing a number of long-awaited features. In particular, this includes the ability to delete any message in a chat. This will remove the message from both users in a private chat. Previously, this feature worked only within the first 48 hours. You can also delete not just your messages, but those of your interlocutor. There is now an option to restrict […]

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