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Linux NVMe setup


Good time of day.Wanted to draw the community's attention on the characteristic feature of Linux when working with multiple NVMe SSD in the same system. Especially important will be for those who like to do from NVMe software RAID arrays.We hope that the information presented below will help protect your data and prevent you from annoying bugs. Read more...

Read more >>> Date release: 2020-03-07

[Translation] Zip files: history, explanation and implementation


I've always wondered how the compressed data, including Zip files. One day I decided to satisfy your curiosity: learn how compression works and write your own Zip-program. The implementation turned into an exciting exercise in programming. Get great pleasure from creating a well-functioning machine that takes data, shifts their bits in more effective performance, and then puts it back together. I hope you will also be interested to read about it.The article explains in great detail how to work...

Read more >>> Date release: 2020-03-03

[Translation] How the CIA read decades encrypted correspondence between allies and opponents


More than half a century the governments of all countries trust the only company concealment of correspondence, which were their spies, soldiers and diplomatica company, Crypto AG, first success was achieved, concluding during the Second World war, the contract on creation of the coding machine for the infantry of the U.S. army. How should capitalize on this, for decades it became the dominant manufacturer of cryptographic equipment, and was on the cutting edge of technology, moving from a...

Read more >>> Date release: 2020-02-15

Interview Guide for those programmers who do not understand them


On Habré with enviable periodicity there are posts from outraged programmers who rightly (probably) are indignant, why no one asked about their past projects at the interview, didn’t look at their code, but asked template help questions or made them solve algorithmic problems, which are most likely ( 99%), will not be applied for vacant work. To reduce the flow of these publications (holy simplicity), below will be a brief but concise guide to the types of interviews that you should expect...

Read more >>> Date release: 2020-01-26

Ungrateful opensource: the developer of the fastest web server according to techempower deleted his repository


Brief essence of the situation: our compatriot fafhrd91 (on Habre there are people in the same name, but it's not) for 3 years almost independently wrote actix-web is one of the most popular crate in the infrastructure Rasta (see kdwp), the leader in most of the various benchmarks, and in that time has undergone at least three waves of persecution for "misuse of the Rasta". After the last time the author went crazy, and moved the repository to his account marked "Plan to hide the...

Read more >>> Date release: 2020-01-18

[Translation] Why taillights on a Cadillac XLR may cost more than a used Corolla


Sometimes flaws in the design are visible right away, and their scruffy performance slaps you in the face, like a chunk of wet ham. Others turn out to be more insidious, and their problems lurk beneath the surface. The taillights of the Cadillac XLR are an example from the last group, and these problems cause a lot of headache to the existing XLR owners, which costs them a lot. . GM made these expensive cars from 2004 to 2009, they had a lot of innovations - for example, this was the first...

Read more >>> Date release: 2020-01-12