News from Habr

React Native Splash Screen — support for different themes

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dev_family @ Habr 1 place · 09/20/2024 05:27 EDT

Hi all! The dev.family team is in touch. In this article, we are sharing a short guide on how to install Splash Screen in a cross-platform app written in React Native with support for multiple themes.Splash screen is the first screen that users see before loading into the main application. This screen is perhaps the best way to make the name of your app, and in general, its entire name,... Read more ›

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[Translation] Queries in PostgreSQL. Sort and merge

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kaze_no_saga @ Habr 2 place · 11/01/2022 02:35 EDT

In the previous articles, we have covered query execution stages, statistics, sequential and index scan, and two of the three join methods: nested loop and hash join.This last article of the series will cover the merge algorithm and sorting. I will also demonstrate how the three join methods compare against each other. Read more → Read more ›

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[Translation] Строим приманки для взломщиков с помощью vcluster и Falco. Эпизод I

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virus_xl @ Habr 1 place · 10/28/2022 02:06 EDT

Прим. переводчика: автор статьи предлагает реализацию honeypot'а («приманки») на основе виртуального кластера Kubernetes, чтобы обнаруживать попытки взлома K8s-инфраструктуры. Также в статье рассматриваются отличия низкоинтерактивных и высокоинтерактивных приманок.Если не вдаваться в детали, главная задача приманок — соблазнять злоумышленников, отвлекая от реальных целей, и попутно собирать информацию об их деятельности. Сегодня мы попытаемся создать такую приманку с помощью vcluster и Falco.В первой части. Read more ›

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Quantum Computers Without Math and Philosophy

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Zashibis @ Habr 2 place · 10/27/2022 15:00 EDT

In this article, I will break down all the secrets of quantum computers piece by piece: what superposition (useless) and entanglement (interesting effect) are, whether they can replace classical computers (no) and whether they can crack RSA (no). At the same time, I will not mention the wave function and annoying Bob and Alice that you might have seen in other articles about quantum machines.The first and most important thing... Read more ›

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Q3 2022 DDoS attacks and BGP incidents

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Shapelez @ Habr 3 place · 10/27/2022 10:27 EDT

With the end of the 2022' third quarter, we invite you to take a tour into DDoS attacks mitigation and BGP incidents statistics recorded from July to September. Read more Read more ›

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MUST HAVE FEATURES IN YOUR CRM

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stepn_f @ Habr · 10/27/2022 08:18 EDT

One of the major challenges facing companies that transitioned online is how to deliver quality and personal customer service to their clients without face-to-face interaction. It’s true that technology can cause exponential growth to companies. However, business owners and leaders must also guard this important aspect of running a business. Fortunately, there are now a lot of CRM systems or customer relationship management systems available online.What are the features and... Read more ›

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How Yandex Made Their Biggest Improvement in the Search Engine with the Help of Yandex.Toloka

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IgKend @ Habr 1 place · 10/21/2022 14:42 EDT

Toloka is a crowdsourcing platform and microtasking project launched by Yandex to quickly markup large amounts of data. But how can such a simple concept play a crucial role in improving the work of neural networks? Learn how Read more ›

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Почему в вашем проекте не нужны Service Objects? Наводим порядок в коде

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alextodef @ Habr 2 place · 10/21/2022 11:08 EDT

Привет! Я Олег Федоткин, Head of PaaS СберМаркета. Хочу поговорить про Service Objects: что с ними не так, почему от них стоит избавляться и как это сделать. В этой статье я поделюсь своей болью о Service Objects, разберу их ключевые проблемы на примере из опенсорса и предложу собственное решение с чек-листом по его внедрению. Поехали! Read more Read more ›

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[Translation] Synchronous Request-Response using REST and Apache Kafka

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graf4444 @ Habr 1 place · 10/19/2022 08:11 EDT

At first glance making REST and Apache Kafka compatible seems quite a challenge. However Innotech team nailed the task. Kirill Voronkin, Lead Developer at Innotech, shared the details on transforming unsynchronized queries into synchronized. Read more Read more ›

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How to Create a Half Circle Progress Bar

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Valeroncho @ Habr 1 place · 10/18/2022 08:15 EDT

I bet you all had situations when a designer made a cool-looking UI and you just thought “cool, but how to implement this”. The same happened to me when a saw this progress bar in Figma.Good thing is that in Flutter it’s pretty easy to create custom views and they will look awesome on every platform, but sometimes you just need to remember all these things that you have learned... Read more ›

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About LC ladders

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quaer @ Habr 1 place · 10/16/2022 09:10 EDT

LC ladder component values can have different values for the same transfer function. Published tables have only one set. Why? Read more Read more ›

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What are OAuth 2 and OpenID Connect (OIDC)?

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DevPer3301 @ Habr 1 place · 10/13/2022 17:51 EDT

Author: Denis Zherdetskiy Read more Read more ›

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Turning a typewriter into a Linux terminal

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artillect @ Habr 1 place · 10/10/2022 14:39 EDT

Hi everyone, a few months ago I got a Brother AX-25, and since then, I've been working on turning it into a computer. It uses an Arduino to scan the custom mechanical keyboard and control the typewriter, and a Raspberry Pi is connected to the Arduino over serial so I can log into it in headless mode. See how it works Read more ›

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Elliptic curves and ECDSA: everything to know to sign a transaction in Bitcoin from scratch

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exmk @ Habr 1 place · 10/07/2022 07:44 EDT

This is the complete crash course on the Elliptic Curves Cryptography used in Bitcoin and other blockchains. With code samples and a live demo from scratch. Read more Read more ›

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[Translation] Ten “Soft Skill” Job Interview Mistakes

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Golartes @ Habr 1 place · 10/06/2022 04:07 EDT

A job interview is one of the most stressful life events. According to research IT specialists change their jobs every 2-3 years, and every tame they are faced with interviews with HR, tech leads and future managers. Artyom Golovachev, Director of IT architecture at Innotech, shares his insights on how to successfully pass an interview. Read more Read more ›

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Let’s Discuss the Lorentz Transforms – Part the Last: The Real Derivation, or The Nail in the Casket

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Schlenz @ Habr 1 place · 10/01/2022 13:14 EDT

In this post there are a lot of references to the previous one – it is essential that you read it before getting down to this.In my previous posts (see the list below below) I tried to express my doubts whether there is a real physical substrate to the Lorentz transforms. The assumptions about the constancy of the speed of light, the homogeneity of space-time, and the principle of relativity... Read more ›

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Как мы создали Digital Workplace для сотрудников

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D_Jul @ Habr 1 place · 09/30/2022 02:23 EDT

Коллективу Альфа-Банка и корпоративным коммуникациям больше 30 лет. За нашу историю накопилось огромное количество систем, которые внедрялись разными командами. Отпуска мы планируем в SAP HCM, командировку оформляем в SAP АХД, кандидатов ведём в E-Staff, обучение проходим в WebTutor — список внушительный. Что это значит для сотрудника? У каждой системы свой интерфейс, и нужно разбираться, где что находится. Неудобно.Неудобства проявлялись не так явно, когда команда собиралась в офисе. В нём проще... Read more ›

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Настройка домена ALD в Astra Linux

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Nemets85 @ Habr 2 place · 09/30/2022 02:00 EDT

Я администрирую серверы на базе Astra Linux и хочу рассказать о своем видении настройки ALD домена: серверной части, клиентской, использовании файла hosts (по сравнению с DNS сервером). Также дам описание настройки резервного сервера. ALD мне интересен в первую очередь потому, что уже имеет интеграцию с Astra Linux. Статья будет вам полезна, если вы собираетесь узнать больше о Astra Linux не только из официальной wiki. Кроме того, эту операционную систему (вместе... Read more ›

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Let’s Discuss the Lorentz Transforms – Intermission: Rapidity, and What it Means

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Schlenz @ Habr 3 place · 09/29/2022 13:45 EDT

I thought my previous post rather funny, and was surprised seeing it initially receive so few views. I thought the entertainment flopped, but fortunately I was wrong. I therefore feel it my duty before my readers to address the subject of the Landau & Lifschitz proof of the invariance of the interval.You can find the summary of it in Wikipedia. Making their starting point the light-like interval always being equal... Read more ›

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Let’s Discuss the Lorentz Transforms – Part 2: The Equation of the Sphere, or Is It?

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Schlenz @ Habr 1 place · 09/26/2022 10:20 EDT

The previous discussion done, we have surmounted the difficult waters and are now sailing into something much more pleasure-like and hopefully even entertaining.As I promised, we will be discussing the invariance of the interval, that is to say, the following relation: Read more Read more ›

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How to be an effective engineer?

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fiter1 @ Habr 2 place · 09/25/2022 20:54 EDT

This question comes up for a lot of us as we trying to advance our career and reach new heights. At the moment when I was challenged by it, I came across a wonderful book by Edmond Lau "Effective Engineer". As always going through the book, I write new thoughts down. And today I want to share the compilation of things that I have found useful from the book. This... Read more ›

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