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The 'Windows 10 May 2019 Update' will not be installed on... USB drives and memory cards connected to the PC

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Microsoft's tech support warns that there may be issues when installing the large May update — Windows 10 May 2019 Update. The reason is the blocking of the system update on devices with an external hard drive or flash drive connected via USB, as well as with a memory card inserted in a card reader, if present on the PC or laptop. If an update is initiated on a computer with connected external drives, […]

Reference: What is Continuous Delivery

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Previously, we discussed Continuous Integration (CI). Let's continue with Continuous Delivery. This is a set of software development methods. It helps ensure that the code is ready for deployment. / Pixabay / bluebudgie / PL History The phrase continuous delivery was mentioned in the Agile Manifesto from 2001 at the start of the list of core principles: "Priority is given to solving customer problems with […]

RHEL 8 Beta Practicum: Installing Microsoft SQL Server

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Microsoft SQL Server 2017 has been available for full use on RHEL 7 since October 2017, and in working on RHEL 8 Beta, Red Hat closely collaborated with Microsoft to enhance performance and provide support for a wider array of programming languages and application frameworks, offering developers a broader selection of available tools for their next application. […]

Synchronized security in Sophos Central

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To ensure high effectiveness of information security measures, the communication between its components plays a significant role. It allows for closing off not only external but also internal threats. When designing network infrastructure, every protection measure is crucial, whether it's antivirus software or a firewall, to ensure they function not only within their class (Endpoint security or NGFW) but also have the capability to […]

Remote work or freelancing in remote areas. Communication aspects. Part 2. There is connectivity.

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In the previous article, I discussed the topic of 'country' internet and devices for accessing this internet. However, not everyone has a cell tower within visible range, and a cellular operator's modem dongle can be utterly useless. This is where specialized routers, boosters, and directional antennas come into play. In this article, I will explain how to achieve a level of comfort […]

Internet for summer cottage owners. Achieving maximum speed on 4G networks. Part 1. Choosing the right router.

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Several years ago, I reviewed communication tools for summer cottage owners or those living in their houses where broadband internet access is unavailable or costs so much that it’s easier to move to the city. Since then, a lot of terabytes have been transferred, and I became curious about what is currently available on the market for good access to the internet via LTE […]

Performance monitoring of PostgreSQL queries. Part 1 — Reporting

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Engineer — translated from Latin — means inspired. An engineer can do anything. (c) R.Diesel. Epigraphs. Or the story of why a database administrator should remember their programming past. Preface All names have been changed. Any resemblance is coincidental. This material represents solely the author's personal opinion. Disclaimer of warranties: the planned series of articles will not contain detailed and precise descriptions of the tables used […]

Random oracle based on digital signature in blockchain

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From Idea to Implementation: Modifying the existing digital signature scheme based on elliptic curves to make it deterministic, and providing on its basis functions for obtaining verifiable pseudorandom numbers within the blockchain. Idea In the autumn of 2018, the first smart contracts were activated on the Waves blockchain, immediately raising the question of the possibility of obtaining trustworthy pseudorandom numbers. Pondering this issue, […]

Steal: Who is stealing CPU time from virtual machines?

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Hello! I want to explain in simple terms how steal arises within virtual machines and some of the not-so-obvious artifacts we discovered during our investigation, which I delved into as the tech director of Mail.ru Cloud Solutions. The platform operates on KVM. CPU steal time is the time when a virtual machine does not receive CPU resources […]

«Medium» — the first decentralized internet provider in Russia

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It's hard to imagine that any of the local residents are unfamiliar with the rather controversial and already quite notorious bill regarding the 'sovereign Runet.' In this article, I would like to share with Habra readers information about an already functioning decentralized provider in Russia that allows access to resources on the I2P network, and also invite interested citizens to join the project and raise […]

How We Built Monitoring with Prometheus, Clickhouse, and ELK

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My name is Anton Baderin. I work at the Center for High Technologies and specialize in system administration. A month ago, our corporate conference concluded, where we shared accumulated experiences with the IT community in our city. I talked about monitoring web applications. The material was intended for junior or middle levels, who had not built this process from scratch. The cornerstone of any monitoring system […]

Introduction to Elasticsearch step by step

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Hello! Today we will discuss the full-text search engine Elasticsearch (hereafter ES), which is used by the Docsvision 5.5 platform. 1. Installation The latest version can be downloaded at the following link: www.elastic.co/downloads/elasticsearch The installer screenshot is below: 2. Checking functionality After completing the installation, navigate to http://localhost:9200/ The ES status page should be displayed, as shown below: If the page does not open, ensure that the Elasticsearch service […]

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