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Reformat @ Habr 1 place · 05/09/2021 04:03 EDT

Democracy in Telegram groups

Many of us spend time in specialized telegram groups. The power over communication here belongs to random people with their own shortcomings. Conflict and abuse occurs regularly. Is there another way to keep order so that scam spam doesn't flourish and no one has total control over group members? In my case, these thoughts led to the development and testing of a system that can be connected to your Telegram... Read more

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Habr
tonyzorin @ Habr 1 place · 05/07/2021 09:28 EDT

Customer feedback: The ultimate guide

IntroductionIt was 1989 when 2 editors of Inc. magazine, George Gendron and Bo Burlingham made the nervous drive to Palo Alto, California. Not long beforehand they’d decided on who to name as Inc.’s Entrepreneur of the Decade, and finally, they would get a chance to interview him.As they entered the offices of NeXT, their interviewee approached them. In his trademark jeans and turtleneck sweater, Steve Jobs led them up the... Read more

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Habr
NIX_Solutions @ Habr 2 place · 05/06/2021 09:43 EDT

Benefits of Hybrid Data Lake: How to combine Data Warehouse with Data Lake

Hey, hey! I am Ilya Kalchenko, a Data Engineer at NIX, a fan of big and small data processing, and Python. In this article, I want to discuss the benefits of hybrid data lakes for efficient and secure data organization. To begin with, I invite you to figure out the concepts of Data Warehouses and Data Lake. Let’s delve into the use cases and delimit areas of responsibility. Read more Read more

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Habr
nin-jin @ Habr 3 place · 05/06/2021 09:41 EDT

[Translation] $mol_func_sandbox: hack me if you might!.

Hello, I'm Jin, and I… want to play a game with you. Its rules are very simple, but breaking them… will lead you to victory. Feel like a hacker getting out of the JavaScript sandbox in order to read cookies, mine bitcoins, make a deface, or something else interesting.https://sandbox.js.hyoo.ru/And then I'll tell you how the sandbox works and give you some ideas for hacking. Read more → Read more

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Habr
Shapelez @ Habr 1 place · 05/05/2021 07:59 EDT

Q1 2021 DDoS attacks and BGP incidents

The year 2021 started on such a high note for Qrator Labs: on January 19, our company celebrated its 10th anniversary. Shortly after, in February, our network mitigated quite an impressive 750 Gbps DDoS attack based on old and well known DNS amplification. Furthermore, there is a constant flow of BGP incidents; some are becoming global routing anomalies. We started reporting in our newly made Twitter account for Qrator.Radar.Nevertheless, with... Read more

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Habr
andrey_sabelnikov @ Habr 1 place · 05/04/2021 02:06 EDT

Atomic Swaps — Taking out the Middleman

And so here we find ourselves in the year of our lord 2021. Global crypto market capitalization is approaching $2 trillion. PayPal is launching a crypto checkout service. Lindsay Lohan is shilling Tron. The Dogecoin Super Bowl commercial didn’t happen, but Elon’s taking it “literally” to the moon instead. Our ascendancy is complete. Crypto is mainstream. But, even today, getting your hands on certain crypto assets can be a bit... Read more

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Habr
SamDark @ Habr 1 place · 04/30/2021 06:51 EDT

Мир изменился — CQRS и ES встречаются в PHP чаще, чем кажется

Motors стала предлагать разноцветные модели Chevrolet, Pontiac, Buick, Oldsmobile и Cadillac — и не прогадала. Глядя на это, даже упрямый Форд изменил свое мышление  — и разработал новый Ford A, вернувший его на автомобильный Олимп. Бывают времена, когда парадигма мышления должна стать новой — ибо человек умирает тогда, когда перестаёт меняться ©Генри Форд. Пришло время и для разработчиков. Command Query Responsibility Segregation (CQRS) и Event Sourcing (ES) уже не миф... Read more

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Habr
lucius @ Habr 2 place · 04/30/2021 03:19 EDT

[Translation] Only 39% of the functions in node_modules are unique in the default Angular project

Only 39% of the functions in node_modules are unique in the default Angular project created by ng new my-app.I think the developers of open source solve problems in the same ways, because they study the same algorithms. Well, why be honest, they copy the popular solutions from StackOverflow also. Read more → Read more

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Habr
Dradmin @ Habr 3 place · 04/30/2021 01:33 EDT

MySQL 8 Performance Benchmark

In this article, we benchmark the performance of MySQL 8 default configuration vs. innodb_dedicated_server enabled configuration vs. the configuration recommended by MySQL Performance Tuning Service. Read more Read more

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Habr
32bit_me @ Habr 1 place · 04/27/2021 14:45 EDT

On commutativity of addition

Does an assembly change, if we write (b + a) instead (a + b)? Let's check out. Let's write:__int128 add1(__int128 a, __int128 b) { return b + a; } and compile it with risc-v gcc 8.2.0:Read more → Read more

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Habr
Andrey2008 @ Habr 2 place · 04/27/2021 08:50 EDT

PVS-Studio Learns What strlen is All About

Somehow, it so happens that we write about our diagnostics, but barely touch upon the subject of how we enhance the analyzer's internal mechanics. So, for a change, today we'll talk about a new useful upgrade for our data flow analysis. Read more → Read more

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Habr
alexpatel @ Habr 1 place · 04/26/2021 05:29 EDT

Flitter Your Business With AI Integrated Flutter App Development

As we all are aware of the fact that the digital market is heavily leaning towards a reliable UX-driven process, app development has become quite complex, especially for targeting the industry for mobile platforms.For every organization, creating a product that is beneficial for their customer needs always comes up with a plethora of challenges. From the technical point of time, there are various challenges that every business faces, including selecting... Read more

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Habr
aydu @ Habr 2 place · 04/26/2021 03:11 EDT

Go Rant

In this series, I would like to discuss some reaches of Go programming language. There is no shortage of Go-Language-Of-Cloud style articles in which you can explore the great benefits that Go indeed provides. However, there are lees to every wine, and Go does not go without blemish. In this highly opinionated series, we cover some controversies and, dare I say, pitfalls of the original Go design.We start tough and... Read more

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Habr
hetmansoftware @ Habr 3 place · 04/25/2021 16:22 EDT

How to Recover NAS/SAN Data, and Configure a Network-Attached Storage System

Are you looking for a solution to recover data from a hard disk within a network storage system like SAN or NAS? If you need to recover lost data from partitions using such file systems as NTFS, FAT, exFAT, ReFS, HFS+, Ext2/3/4, ReiserFS – try Hetman Partition Recovery. It will quickly scan your disk and display the available data on the screen, so you will only have to select the... Read more

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Habr
hetmansoftware @ Habr 1 place · 04/24/2021 16:17 EDT

How to Recover a Crashed RAID 5EE After Controller Failure or Multiple Disk Failure

How to recover data from a RAID array with a dead controller? How to create a RAID 5EE storage system with an Adaptec ASR-6805T controller? What to do if one or several disks within the array break down? How to replace an inoperable drive? How to recover the lost information after a controller error? Read this article for extended explanations, and learn the sequence of steps you need to take... Read more

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Habr
SergeyBPshenichnikov @ Habr 1 place · 04/23/2021 06:01 EDT

[Translation] Context category

The mathematical model of signed sequences with repetitions (texts) is a multiset. The multiset was defined by D. Knuth in 1969 and later studied in detail by A. B. Petrovsky [1]. The universal property of a multiset is the existence of identical elements. The limiting case of a multiset with unit multiplicities of elements is a set. A set with unit multiplicities corresponding to a multiset is called its generating... Read more

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Habr
hetmansoftware @ Habr 2 place · 04/22/2021 15:54 EDT

Top Data Recovery Tools for Linux File Systems – Ext4/3/2

Read this article to learn more about top tools to recover data lost from partitions on a disk with Ext4/3/2 file system used by Linux. We will explore thoroughly what each data recovery tool can do.Read more → Read more

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Habr
ValeryKomarov @ Habr 3 place · 04/22/2021 08:09 EDT

Roslyn API: Why PVS-Studio Was Analyzing the Project So Long

How many of you have used third-party libraries when writing code? It's a catchy question. Without third-party libraries the development of some products would be delayed for a very, very long time. One would have to reinvent the wheel to solve each problem. When you use third-party libraries you still stumble upon some pitfalls in addition to obvious advantages. Recently PVS-Studio for C# has also faced one of the deficiencies.... Read more

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Habr
hetmansoftware @ Habr 1 place · 04/21/2021 16:59 EDT

Browser Won’t Open Websites: Proxy Server Connection Error

Read this article to find out what to do if your browser won’t open websites, while Skype, cloud services and other Internet applications do not seem to have any problems.Read more → Read more

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Habr
Firensis @ Habr 2 place · 04/21/2021 08:38 EDT

Finally! PVS-Studio Supports .NET 5 Projects

On November 10th, 2020, Microsoft released a new version of .NET Core - .NET 5. The updated platform presents many new enhancements. For example, it allows C# developers to use features the new C# 9 offers: records, relational pattern matching, etc. Unfortunately, there was a disadvantage: PVS-Studio could not analyze these projects. However (and here's the good news)... That used to be the case :) Our next release, PVS-Studio 7.13,... Read more

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