Administration Section
Introduction "You have to run as fast as you can just to stay in place, and if you want to get somewhere, you have to run at least twice as fast!" (c) Alice in Wonderland Some time ago, I was asked to give a lecture to our company's analysts on the topic of data model design. After sitting on projects for long periods (sometimes for several years), we often lose sight of […]
Introduction It all started with a short script that was meant to combine information about employees' email addresses obtained from a mailing list with employees' positions retrieved from the HR database. Both lists were exported to text files in UTF-8 Unicode encoding and saved with Unix line endings. Content of mail.txt Ivanov Andrey;ia@example.com Content of buhg.txt Ivanova Alla;painter Yolkina […]
A brief introductory note I believe we could accomplish much more if we were provided with step-by-step instructions to tell us what to do and how to do it. I recall moments in my life when I couldn't start something simply because I had no idea where to begin. Perhaps, long ago in […]
Emergency mode (also referred to as IPKVM), allowing connection to a VPS without RDP directly from the hypervisor level, saves 15–20 minutes a week. The first and foremost goal is not to irritate people. Support worldwide is divided into tiers, and the first-level staff should try typical solutions. If a task goes beyond their scope, it should be escalated to the second level. So, […]
Best practices for Kubernetes. Creating small containers Best practices for Kubernetes. Organizing Kubernetes with namespaces Best practices for Kubernetes. Checking Kubernetes health using Readiness and Liveness probes For each Kubernetes resource, there is an opportunity to configure two types of requirements — Requests and Limits. The former describes the minimum requirements for free node resources necessary for launching a container or pod […]
Best Practices for Kubernetes. Creating Small Containers Best Practices for Kubernetes. Organizing Kubernetes with Namespaces Best Practices for Kubernetes. Health Checks in Kubernetes using Readiness and Liveness Tests Best Practices for Kubernetes. Setting Resource Requests and Limits A critical aspect of distributed systems is failure handling. Kubernetes aids in this by using controllers that monitor the state of your system […]
Best Practices for Kubernetes. Creating Small Containers Best Practices for Kubernetes. Organizing Kubernetes with Namespaces Best Practices for Kubernetes. Health Checks in Kubernetes using Readiness and Liveness Tests Best Practices for Kubernetes. Setting Resource Requests and Limits Best Practices for Kubernetes. Proper Termination Shutdown If you are like most people, you probably use resources that operate beyond your […]
Hello friends! There are many ways to connect from home to your workplace in the office. One of them is to use Microsoft Remote Desktop Gateway. This is RDP over HTTP. I don't want to discuss the configuration of RDGW here or debate whether it's good or bad; let’s consider it as just one of the tools for remote access. I […]
About two weeks ago, I contacted Yandex's technical support regarding video filtering in child mode. Honestly, I have wanted to reach out about inappropriate content for children for some time, but like it usually happens — it was postponed. Besides, it’s Yandex! They know better what you meant to find. It turned out that […]
It has been a year since we've been hearing about the advantages of the revolutionary technological standard Wi-Fi 6. The Russian regulatory framework for this standard is going through the approval stages and will come into force in a few months, creating conditions for the certification of communication devices. I will focus on what the leading vendor in the corporate wireless networks sector offers, the company […]
On May 22, 2020, an article by scientists from research and academic institutions in Australia, China, and Canada titled "Ultra-dense optical data transmission over standard fibre with a single chip source" was published in Nature Communications. Naturally, such a title wasn't suitable for a wider audience, so news coverage focused on the record of 44.2 Tb/s achieved (some […
Other articles in the series: History of relays The "fast information transfer" method, or The birth of the relay Long-distance writer Galvanism Entrepreneurs And finally, the relay Talking telegraph Just connect Forgotten generation of relay computers Electronic era History of electronic computers Prologue Colossus ENIAC The electronic revolution History of the transistor Groping in the dark From the crucible of war Multiple reinventions History of the Internet Backbone network Dissolution, […]