Category Administration
Today's lesson we will devote to VLAN settings, that is, we will try to do everything that we talked about in previous lessons. Now we will look at 3 questions: creating a VLAN, assigning VLAN ports, and viewing the VLAN database. Let's open the Cisco Packer tracer program window with the logical topology of our network drawn by me. The first switch SW0 is connected to 2 computers PC0 and […]
It's no secret that one of the commonly used auxiliary tools, without which data protection in open networks is impossible, is digital certificate technology. However, it is no secret that the main drawback of the technology is unconditional trust in the centers that issue digital certificates. Director of Technology and Innovation at ENCRY Andrey Chmora proposed a new approach […]
Hello, Habr! I present to your attention a translation of the article “Service mesh data plane vs control plane” by Matt Klein. This time, I “wanted and translated” the description of both service mesh components, data plane and control plane. This description seemed to me the most understandable and interesting, and most importantly leading to the understanding of “Is it necessary at all?” Since the idea of a “Service Network […]
Hi all! Our company is engaged in software development and subsequent technical support. Technical support requires not just fixing errors, but monitoring the performance of our applications. For example, if one of the services has crashed, then you need to automatically record this problem and start solving it, rather than waiting for calls from dissatisfied users to technical support. We have […]
TL;DR: After a few days of experimenting with Haiku, I decided to put it on a separate SSD. But everything turned out to be not so easy. We are working hard to check the download of Haiku. Three days ago I learned about Haiku, a surprisingly good operating system for PC. It's day four and I wanted to do more "real work" with this system, and the section […]
Purpose of the system Supports remote access to files on computers on the network. The system “virtually” supports all basic file operations (creation, deletion, reading, writing, etc.) by exchanging transactions (messages) using the TCP protocol. Areas of application The system functionality is effective in the following cases: in native applications for mobile and embedded devices (smartphones, on-board control systems, etc.) that require fast […]
Main theses or what this article is about. Since people have different interests, and people have little time, let’s briefly talk about the contents of the article. This article is an overview of a controller project with a minimal price and the ability to visually program using a WEB browser. Since this is a review article aimed at showing “what can be squeezed out of a penny controller”, deep truths and […]
I saw a publication that PVS had learned to analyze under Linux, and decided to try it on my own projects. And this is what came out of it. Contents Pros Cons Summary Afterword Pros Responsive support I requested a trial key, and they sent it to me on the same day. Fairly clear documentation We managed to launch the analyzer without any problems. Help for console commands […]
What does it take for an IT company to be successful in 2019? Lecturers at conferences and meetups say a lot of loud words that are not always understandable to normal people. The struggle for deployment time, microservices, abandonment of the monolith, DevOps transformation and much, much more. If we discard verbal beauty and speak directly and in Russian, then it all comes down to a simple thesis: make a quality product, and […]
Censorship views the world as a semantic system in which information is the only reality, and what is not written about does not exist. — Mikhail Geller This digest is intended to increase the Community’s interest in the issue of privacy, which in the light of recent events is becoming more relevant than ever before. On the agenda: “Medium” completely switches to Yggdrasil “Medium” creates its own […]
The idea for the article was born spontaneously from a discussion in the comments to the article “Something about inode”. The fact is that the internal specificity of our services is the storage of a huge number of small files. At the moment we have about hundreds of terabytes of such data. And we came across some obvious and not so obvious rakes and successfully navigated them. That's why I'm sharing [...]
On July 25, 2019, without warning, the State Commission on Radio Frequencies (SCRF) gave the domestic RAVIS standard the ranges 65,8–74 MHz and 87,5–108 MHz for organizing digital radio broadcasting. Now a third has been added to the choice of two not very good standards. In the Russian Federation there is a special body responsible for distributing the available radio spectrum among those wishing to use it. His decisions largely [...]
