Author: Yuri Gagarin

Eco-Fiction on Planet Protection

Cli-Fi (climate fiction, derived from Sci-Fi, science fiction) began to be discussed in 2007, although fictional works addressing ecological issues were published earlier. Cli-Fi is a very interesting subgenre of science fiction, based on theoretically possible or already existing technologies and scientific advancements that could dramatically spoil our lives. Eco-fiction raises issues of […]

We are adding support for USB modems to Keenetic KN-1310.

A brief digression: for those who want to take the time to understand why I decided to redo it, please see /cut. This article isn't about how I regretted not spending 1000 rubles on a router with USB support, but about the real problem with our only local internet provider, which refuses to work properly yet is eager to collect payments and […]

Migration of Cassandra to Kubernetes: features and solutions

We regularly encounter the Apache Cassandra database and the need to operate it within a Kubernetes-based infrastructure. In this material, we share our vision of the necessary steps, criteria, and existing solutions (including a review of operators) for migrating Cassandra to K8s. "Who can manage a woman, can handle a state." So, who is Cassandra? It is a distributed storage system designed for […]

Release of nginx 1.17.6 and njs 0.3.7

The release of the main branch of nginx 1.17.6 has been formed, where the development of new features continues (in the concurrently maintained stable branch 1.16, only changes related to fixing serious bugs and vulnerabilities are made). Major changes: New variables $proxy_protocol_server_addr and $proxy_protocol_server_port have been added, which contain the address and port of the server received from the PROXY protocol header; The directive limit_conn_dry_run has been added, which switches the ngx_http_limit_conn_module to […]

Release of Coreboot 4.11

The release of CoreBoot 4.11 has been published, which develops a free alternative to proprietary firmware and BIOS. A total of 130 developers have contributed to this new version, preparing 1,630 changes. Major updates include: Support for 25 motherboards added: AMD PADMELON; ASUS P5QL-EM; QEMU-AARCH64 (emulation); Google AKEMI, ARCADA CML, DAMU, DOOD, DRALLION, DRATINI, JACUZZI, JUNIPER, KAKADU, KAPPA, PUFF, SARIEN CML, […]

On the birthday of Yuri Knorosov: studying the basics of Mayan writing

Mayan writing was the only full writing system in the Americas, but thanks to the efforts of brave Spanish conquistadors, it was completely forgotten by the 17th century. Nevertheless, thousands of these symbols have survived on carved stones, frescoes, and ceramics, and in the 20th century, an ordinary Soviet graduate student proposed an idea that allowed them to be deciphered. This article will show how this […]

Identifying disk activity processes in Linux

TL;DR: This article describes a convenient, fast, and reliable method for identifying Linux programs that write data to the disk, which helps in detecting high or abnormally frequent loads on the disk subsystem, as well as assessing the overhead of the file system. This is especially relevant for SSDs in PCs, EMMC, and Flash memory in single-board computers. During the writing of this article, it was discovered that writing […]

Server rack for 14 patch panels or 5 days spent in the server room

Cable installation and patch panel wiring in the server room In this article, I'm sharing my experience in organizing a server room with 14 patch panels. Below are many photographs. General information about the project and server room Our company DATANETWORKS won a tender to build the structured cabling system in a new three-story office building. The network includes 321 ports and 14 patch panels. Minimum requirements for […]

CRM with a human touch

"Implementing CRM? Of course, we're under a watchful eye now, it's all about control and reports," this is how most employees think when they hear that work will soon move into the CRM. It's believed that CRM is just a tool for management and serves only their interests. That's not true. Consider how often you: forgot to complete a task or return to some work […]

Release of the Linux sound subsystem — ALSA 1.2.1

The release of the ALSA 1.2.1 sound subsystem has been announced. This is the first release of the 1.2.x branch (the 1.1 branch was established in 2015). The new version includes updates to libraries, utilities, and plugins that operate at the user level. The drivers evolve in sync with the Linux kernel. Notable changes include the migration of topology-related functions to a separate libatopology library (a method for the drivers to load handlers from space […]

OpenVSP 3.19.1 — free CAD for designing and analyzing aircraft geometry

OpenVSP is an open-source parametric CAD for designing and analyzing the geometry of aircraft (CFD, FEM). The program is developed by employees of NASA Langley Research Center and is included in the NASA Software Catalog. From September 17-19, 2019, the "OpenVSP Workshop 2019" took place, showcasing developments and plans for the 3.19.x branch. On November 9, OpenVSP 3.19.0 was released, and shortly […]

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