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PostgreSQL Antipatterns: How deep is the rabbit hole? A look at the hierarchy

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In complex ERP systems, many entities have a hierarchical nature, where homogeneous objects are structured in a tree of relationships 'ancestor – descendant' — this includes the organizational structure of the enterprise (all these branches, departments, and working groups), product catalogs, project sections, and the geography of sales points. In fact, there is no area of business automation where some hierarchy isn’t present […]

The story of a switch

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In our local network aggregation, there were six pairs of Arista DCS-7050CX3-32S switches and one pair of Brocade VDX 6940-36Q switches. It's not that the Brocade switches were a major concern in this network; they work and fulfill their functions, but we were preparing for full automation of certain actions, which we didn't have the capabilities for on these switches. Plus, we wanted […]

Red Hat has opened the source code of its Bugzilla edition

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Red Hat has published the source texts of its Bugzilla system, which is used for maintaining a bug database, tracking their fixes, and coordinating the implementation of innovations. The Bugzilla code is written in Perl and is distributed under the MPL open license. The largest projects using Bugzilla include Mozilla, Red Hat, and SUSE. Red Hat uses its own branch in its infrastructure […]

Finnix 120 Release, a live distribution for system administrators

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After five years of inactivity, in honor of the project's 20th anniversary, preparations for new releases of the Live distribution Finnix have resumed, based on the Debian 10.4 package base and the Linux 5.4 kernel. The distribution only supports console operation, but includes a good selection of utilities for administrative needs. It consists of 586 packages with various utilities. The size of the ISO image is 477 MB. The new release features […]

How to Prevent Being Cheated by Your Accountant or How to Migrate 1C to the Cloud: A Step-by-Step Guide

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How is accounting currently managed in companies? Typically, it's a package of 1C installed on the local computer of an accountant, where a full-time accountant or an outsourced specialist works. The outsourcer can handle several client companies at once, sometimes even competitors. In this approach, access to bank accounts, crypto-security funds, electronic document management, and other important services is set up directly on the accountant's computer. What […]

Beginners in the stock market: honest talks about trading

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The RUVDS blog on Habrahabr has seen it all: the popularization of JavaScript, cool translated materials, yachting, education and professional development issues, burgers, cheeses, beer, and calendars featuring cyber girls. The idea to talk about the basics of trading and working in the stock market has been with us for a long time, and here's why. Most companies writing on stock market topics have a clear goal: to acquire clients for their […]

Wireless communication for remote work — a backup channel and more

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We continue the conversation about nuances and recommended best practices. Is a backup channel necessary, and what should it be like? Introduction Until you start working remotely seriously and for a long time, you don't consider many things. For example, how to ensure quick system recovery. Where to get a computer to replace a broken one if you need to connect to work not in a day, but right away […]

Vivo has started developing its own system-on-chip

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What do Samsung, Huawei, and Apple have in common, aside from producing mobile devices? All these companies are involved in the development and production of their own mobile processors. There are other smartphone manufacturers also producing chips for mobile devices, but their volumes are significantly smaller. As blogger Digital Chat Station has discovered, the company vivo is working on creating its own chipsets. The blogger […]

The new version of the Russian distribution Astra Linux Common Edition 2.12.29

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The company LLC "RusBITech-Astra" has released version 2.12.29 of the Astra Linux Common Edition distribution, built on the Debian GNU/Linux package base and supplied with its proprietary Fly desktop (interactive demo), which uses the Qt library. ISO images for download are currently not available, but a binary repository and source package texts are provided. The distribution is distributed under a licensing agreement that imposes certain restrictions on […]

The twelfth update of Ubuntu Touch firmware

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The UBports project, which has taken over the development of the Ubuntu Touch mobile platform after Canonical withdrew from it, has released the OTA-12 firmware update (over-the-air) for all officially supported smartphones and tablets that were equipped with the Ubuntu-based firmware. The update has been created for the OnePlus One, Fairphone 2, Nexus 4, Nexus 5, Nexus 7 2013, Meizu […]

Release of Erlang/OTP 23.

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The release of the functional programming language Erlang 23 has taken place, aimed at developing distributed fault-tolerant applications that provide parallel processing of requests in real time. The language has found use in areas such as telecommunications, banking systems, e-commerce, computer telephony, and instant messaging. Simultaneously, the OTP 23 (Open Telecom Platform) release was issued — a companion set of libraries and components for […]

A few tips on how to speed up Docker image builds. For example, in up to 30 seconds.

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Before a feature goes live, in our time of complex orchestrators and CI/CD, it has to go through a long journey from commit to testing and delivery. In the past, you could just throw new files via FTP (which no one really does anymore, right?), and the deployment process would take seconds. Now, however, you need to create a merge request and wait a significant amount of time while the feature […]

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