Administration Section
What questions would retailers like X5 Retail Group, Open, Auchan, and others have when transitioning to Cloud4Y? Retailers are facing challenging times. Consumer habits and demands have changed significantly over the last decade. Online competitors are about to start closing in. Generation Z shoppers want a simple and functional profile to receive personalized offers from stores and brands. They use […]
In February, a conference on high-performance computing (HPC) took place at Stanford. VMware representatives shared that when working with GPUs, a system based on a modified ESXi hypervisor performs comparably to bare metal solutions. We discuss the technologies that made this possible. / photo Victorgrigas CC BY-SA Performance Issue According to analysts, about 70% of workloads in data centers are virtualized. […]
Let's look into the practical use of Windows Active Directory + NPS (2 servers for redundancy) + the 802.1x standard for access control and user authentication – domain computers – devices. You can refer to the theory regarding the standard in Wikipedia, at the following link: IEEE 802.1X. Since my 'laboratory' is resource-limited, I will combine the roles of NPS and domain controller, but […]
The Bailey–Borwein–Plouffe formula allows you to extract any specific hexadecimal or binary digit of the number pi without calculating the preceding ones (the current record was set using the Chudnovsky algorithm, see below). The Google Compute Engine computational cluster calculated the largest number of digits in pi over 121 days using 25 virtual machines, establishing a new world record: 31.4 trillion digits […]
Preface There exists a simple yet highly useful utility in the world — BDelta, which has long been embedded in our production process (though I couldn't install its version, it was certainly not the latest available). We use it for its intended purpose — building binary patches. Looking at what's in the repository, it becomes a bit […]
As I embark on improving the infrastructure, I resolved to tackle an ancient and painful issue — to allow my colleagues (developers, testers, admins, etc.) to manage their virtual machines in oVirt without unnecessary movements. In oVirt, there are several components that need to be configured to address my issue: the web interface itself, the noVNC console, and the upload of disk images. The 'Make It Awesome' button was […]
Hello everyone. I am a Linux sysadmin, relocated from Russia to Australia on a skilled independent visa in 2015, but this article will not be about how a piglet got a tractor. There are already plenty of articles on that topic (however, if there's interest—I can write about it), so I wanted to share what I have […]
We paint a portrait of the modern viewer in different parts of the world. Feel the difference between the United States and Latin America in the report from BROADVISION analysts. Who is the modern viewer? Who gathers with family and friends in the evening to watch a match or their favorite show? How well do you know your subscribers? We have collected data on audiences around the world […]
The milestone Linux kernel version 5.0 was released in early March. However, work on kernel 5.1 is already underway. In this article, we will explore several innovations that are expected in this version. / Flickr / ayu oshimi / CC BY-SA Support for a.out is being discontinued Linux has supported ELF binary files since the first kernel version. After 25 years, a.out is planned to be […]
DNA storage solutions are not yet ready for mass adoption, but some experts believe that this will change in the near future. More companies are starting to engage with this issue. Photo University of Michigan / Flickr / CC BY Why DNA storage is becoming a focus According to forecasts from Cambridge Consultants, storage systems will soon struggle to meet changing storage and operational requirements […]
The European Union has approved a project aimed at developing a methodology for reusing outdated and broken data center equipment. More details — under the cut. / photo Tristan Schmurr CC BY The essence of the initiative According to Supermicro, half of the world's data centers upgrade their equipment every 1 to 3 years. Most of the discarded hardware components can be reused, for example, reselling undamaged hard drives or […]
At one point, I decided to write an article about delivering in the form of Docker containers and deb packages, but when I started, I was somehow drawn back to the early days of personal computers and even calculators. In general, instead of dry comparisons of Docker and deb, I ended up with these reflections on the theme of evolution, which I present for your judgment. Any product […]