Administration Section
I share from personal experience where and when it was useful. A general overview and bullet points to clarify what can be explored further — but this is based solely on my subjective personal experience, yours may be quite different. Why is it important to know and be able to work with query languages? In essence, there are several key aspects in Data Science [...]
Frenchman Fabrice Grinda has always loved taking risks — he has successfully invested in hundreds of companies: Alibaba, Airbnb, BlaBlaCar, Uber, and even the Russian equivalent of Booking — the service Oktogo. He has a special intuition for trends and the potential future. Monsieur Grinda not only invested in others' businesses but also created his own. For example, the online classifieds platform OLX, which is used by [...]
Cloud computing is increasingly infiltrating our lives, and there is probably no one who hasn't used some cloud services at least once. However, what exactly is the cloud and how does it work? Very few know even at an introductory level. 5G is becoming a reality, and telecom infrastructure is starting to transition [...]
Just over a year has passed since I tested the brand new Intel Core i9-9900K. But time marches on, everything changes, and now Intel has released a fresh line of 10th generation processors, the Intel Core i9-10900K. What surprises do these processors hold, and is everything really changing? Let's talk about this right now. Comet Lake-S is the code name for the 10th generation [...]
With the emergence of Intel's seventh-generation Core processors, it became clear to many that the 'Tick-Tock' strategy that Intel had been following was flawed. The promise to reduce the technological process from 14 to 10 nm remained just a promise, leading to a long 'Tock' era of Skylake, during which Kaby Lake (the seventh generation) occurred, along with the sudden Coffee Lake (the eighth) with minimal changes to the process technology [...]
The development of the topic Study on implementing Row Level Security in PostgreSQL and an expanded response to the comment. The strategy used involves the concept of 'Business Logic in the Database', which was described in more detail here — Study on implementing business logic at the level of stored functions in PostgreSQL. The theoretical part is well described in the Postgres Pro documentation — Row Protection Policies. Below is a practical [...]
As an addition to the study on implementing business logic at the level of PostgreSQL stored functions, and primarily as a detailed response to the comment. The theoretical part is well described in the Postgres Pro documentation — Row-Level Security Policies. Below is a practical implementation of a small specific business task — hiding deleted data. The study dedicated to the implementation of the Role-Based Model using RLS is presented […]
The motivating factor for writing this study was the article "During quarantine, the load increased 5 times, but we were ready." How Lingualeo transitioned to PostgreSQL with 23 million users. An article published 4 years ago — Implementing business logic in MySQL — also seemed interesting. It was intriguing that the same idea — 'to implement business logic in the database' — came up in […]
This post will describe the setup of information panel visualization for ELK and SIEM in ELK. The article is divided into the following sections: 1- Overview of ELK SIEM 2- Default dashboards 3- Creating your first dashboards. Table of contents for all posts. Introduction. Deployment of infrastructure and technologies for SOC as a Service (SOCasS) ELK stack — installation and configuration. A walk through open Distro […]
Note: In early August, Red Hat publicly addressed the availability issues that users of its Quay.io service experienced in the preceding months (the service is based on a container image registry that came to the company with the acquisition of CoreOS). Regardless of your interest in this service per se, the journey taken by the company's SRE engineers is informative […]
All Linux distributions come with a functional and customizable terminal emulator. There are plenty of ready-made themes on the internet, and sometimes even within the terminal itself, to make it look appealing. However, to transform the standard terminal (in any DE, of any distribution) into something beautiful yet convenient and easy to use, I spent a lot of time. So, how can we make the default […]
Hello everyone in this blog! This is the third post in a series where we demonstrate how to deploy modern web applications on Red Hat OpenShift. In the previous two posts, we discussed how to deploy modern web applications in just a few steps and how to use the new S2I image along with a ready-made HTTP server image, such as NGINX, with the help of chained builds […]