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Author: ProHoster

Digital events in Moscow from 3 to 9 February

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Selection of events for the week of PgConf.Russia 2020 February 03 (Monday) - February 05 (Wednesday) Lenin Hills 1с46 from 11 rub. PGConf.Russia is an international technical conference on the open PostgreSQL DBMS, annually bringing together more than 000 developers, database administrators and IT managers to exchange experiences and professional networking. The program includes master classes from leading world experts, reports in three thematic […]

Model-Based Design. Creation of a reliable model, using the example of an aircraft heat exchanger

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“If you read the inscription “buffalo” on an elephant’s cage, don’t believe your eyes” Kozma Prutkov In the previous article about model-based design, it was shown why an object model is needed, and it was proven that without this object model one can only talk about model based design as about a marketing blizzard, senseless and merciless. But when a model of an object appears, competent engineers always […]

Digital events in St. Petersburg from 3 to 9 February

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A selection of events for the week Specia Design Meetup #3 February 04 (Tuesday) Moskovsky Avenue RUR 55 SPECIA, with the support of Nimax, is organizing a design meeting where speakers will be able to share difficulties and solutions, as well as discuss pressing issues with colleagues. RNUG SPb Meetup February 500 (Thursday) Dumskaya 06 free Suggested topics: Domino release, Notes, Sametime V4, Volt (ex-LEAP), […]

Automatic verification of TOR requirements in the process of dynamic simulation

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Continuing the topic “What is your evidence?”, let’s look at the problem of mathematical modeling from the other side. After we are convinced that the model corresponds to the homespun truth of life, we can answer the main question: “what, exactly, do we have here?” When creating a model of a technical object, we usually want to make sure that this object will meet our expectations. This is why […]

Write, don't cut. What I began to miss in the publications of Habr

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Avoid value judgments! We split up the proposals. We throw away unnecessary things. We don't pour water. Data. Numbers. And without emotions. The “information” style, sleek and smooth, has completely taken over technical portals. Hello postmodern, our author is now dead. Already for real. For those who don't know. Information style is a series of editing techniques when any text should turn out to be a strong text. Easy to read, […]

The TFC project has developed a USB splitter for a messenger of 3 computers

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The TFC (Tinfoil Chat) project proposed a hardware device with 3 USB ports to connect 3 computers and create a paranoid-protected messaging system. The first computer acts as a gateway for connecting to the network and launching the Tor hidden service; it manipulates already encrypted data. The second computer has the decryption keys and is used only to decrypt and display received messages. The third computer […]

AMA with Habr #16: rating recalculation and bug fixes

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Not everyone had time to take out the Christmas tree yet, but the last Friday of the shortest month—January—has already arrived. Of course, everything that happened on Habré during these three weeks cannot be compared with what happened in the world during the same period of time, but we didn’t waste time either. Today in the program - a little about interface changes and traditional […]

Robot Beasts, Lesson Plans and New Details: LEGO Education SPIKE Prime Set Overview

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Robotics is one of the most interesting and disruptive school activities. She teaches how to compose algorithms, gamifies the educational process, and introduces children to programming. In some schools, starting from the 1st grade, they study computer science, learn to assemble robots and draw up flowcharts. So that children can easily understand robotics and programming and can study mathematics and physics in depth in high school, we have released a new […]

Product Management Digest for December and January

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Hello, Habr! Happy holidays to everyone, our parting was difficult and long. Honestly, there wasn't anything that big that I wanted to write about. Then I realized that I wanted to improve the planning processes from a product point of view. After all, December and January are the time to sum up and set goals for the year, quarter, as in an organization […]

Brief comparison of SDS architecture or finding the right storage platform (GlusterVsCephVsVirtuozzoStorage)

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This article was written to help you choose the right solution for yourself and understand the differences between SDS such as Gluster, Ceph and Vstorage (Virtuozzo). The text uses links to articles with more detailed disclosure of certain problems, so the descriptions will be as brief as possible using key points without unnecessary water and introductory information that you […]

Profession: system administrator

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Often from the older generation we hear magic words about “the only entry in the work book.” Indeed, I have come across absolutely amazing stories: a mechanic - a mechanic of the highest category - a workshop foreman - a shift supervisor - a chief engineer - a plant director. This cannot but impress our generation, which changes jobs once, twice, whatever - sometimes […]

Our experience in developing a CSI driver in Kubernetes for Yandex.Cloud

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We are pleased to announce that Flant is expanding its contribution to Open Source tools for Kubernetes by releasing an alpha version of the CSI (Container Storage Interface) driver for Yandex.Cloud. But before moving on to the implementation details, we will answer the question of why this is needed at all, when Yandex already has a Managed Service for Kubernetes service. Introduction Why is this? Inside our company, since [...]

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