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 portable version of OpenBGPD 6.5p1 is now available

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The developers of OpenBSD published the first stable update of the portable version of the OpenBGPD routing package 6.5, which can be used on operating systems other than OpenBSD. To ensure portability, parts of the code were used from the OpenNTPD, OpenSSH, and LibreSSL projects. In addition to OpenBSD, support for Linux and FreeBSD has been declared. The operation of OpenBGPD has been tested on Debian 9, Ubuntu 14.04, and FreeBSD 12. Development of OpenBGPD is ongoing at […]

How Pod Priorities in Kubernetes Caused Downtime at Grafana Labs

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Bill No. 608767-7 on the autonomous operation of the Runet was submitted to the State Duma on December 14, 2018, and in February was approved in the first reading. The authors are Senator Lyudmila Bokova, Senator Andrei Klishas, and Deputy Andrei Lugovoy. For the second reading, a number of amendments were prepared for the document, including one very important one. The costs for telecommunications operators for the purchase and maintenance of equipment will be […]

How the priorities of pods in Kubernetes caused downtime at Grafana Labs

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Note: We present to you technical details about the reasons for the recent downtime of the cloud service operated by the creators of Grafana. This is a classic example of how a new and seemingly useful feature, intended to improve infrastructure quality, can cause harm if numerous nuances of its application in a production environment are not taken into account. It’s wonderful when such materials arise, allowing us to learn not only […]

Sovereign Internet — at Our Expense

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As is known, indexes play a crucial role in DBMS, providing quick access to the required records. Therefore, it is essential to maintain them timely. There is plenty of material written about analysis and optimization, including online. For example, a recent review of this topic was published here. There are many paid and free solutions available for this. For instance, there exist […]

Optimization of database queries using a B2B service for builders

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How can you grow tenfold in database requests without migrating to a more powerful server while maintaining system performance? I will share how we tackled the performance drop of our database, optimized SQL queries to serve as many users as possible, and kept computational resource costs down. I am developing a service for managing business processes […]

Microsoft could enhance Windows 10 Pro for computer enthusiasts

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In its time, there were rumors that Microsoft was preparing a Windows 10 Home Ultra build for enthusiasts. However, this turned out to be just a dream. There is still no special version. However, it is believed that it may appear in the Windows 10 Pro edition. The Pro version fills the gap between Windows 10 Enterprise and Windows 10 Home; however, it is more geared towards system admins […]

The third preview release of the Xfce 4.14 user environment

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The third preliminary release of the Xfce 4.14 desktop environment has been proposed for testing. The release is expected on August 11. A Docker image has been prepared for testing Xfce 4.14pre3. A review of the new features of Xfce 4.14 can be found in the previous announcement. Compared to the first test release, the main highlight is the bug fixes. For instance, in xfce4-session, the risk of race conditions due to applying settings has been minimized […]

Valve has released Proton 4.11, a package for running Windows games on Linux.

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Valve has released a new branch of the Proton 4.11 project, based on the developments from the Wine project, aimed at enabling the launch of gaming applications for Windows on Linux, which are featured in the Steam catalog. The developments of the project are distributed under the BSD license. As they are ready, changes developed in Proton are transferred into the original Wine and related projects, such as DXVK and vkd3d. […]

YubiKey touch detector

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This tool indicates when the YubiKey is waiting for the user's touch for authorization. It integrates with the UI to display an indicator. The YubiKey may require a physical touch to confirm the following operations: the sudo command (via pam-u2f), gpg —sign, gpg —decrypt, ssh to a remote host (and related commands like scp, rsync, etc.), ssh from one remote host to […]

Beauty is in the eye of the beholder

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I have been developing web applications for a long time. A very long time. I created my first web applications in the Lotus Domino environment back when the word "google" wasn't a verb yet, and people used Yahoo! and Rambler for online searches. I used Infoseek — they had a narrowing search feature and a much less cluttered interface than […]

Tales from the service department. A light-hearted post about serious work

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Service engineers can be found at gas stations and spaceports, in IT companies and car factories, at VAZ and SpaceX, in small businesses and international giants. And everyone, absolutely everyone, has heard the classic phrases like 'it just works itself', 'I wrapped it in duct tape and it worked, and then it blew up', 'I didn't touch anything', 'I definitely didn't change anything', and […]

The book 'Linux in Action'

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Hello, Habr readers! In this book, David Clinton describes 12 real-life projects, including the automation of backup and recovery systems, setting up a personal cloud storage system like Dropbox, and creating your own MediaWiki server. Through engaging examples, you will learn about virtualization, disaster recovery, security, backup, DevOps implementation, and system troubleshooting. Each chapter ends with a review of practical recommendations, […]

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