Administration Section
Transferring data and applications to the cloud presents a new challenge for corporate SOCs, which are not always prepared to monitor external infrastructure. According to NetSkope, the average enterprise (presumably still in the U.S.) uses 1,246 different cloud services, which is 22% more than last year. 1,246 cloud services!!! 175 of them are related to HR services, 170 are connected to marketing, 110 […]
In recent years, news feeds have been inundated with reports of newly emerging distributed computing networks that seem to appear out of nowhere, attempting to solve a variety of tasks — making cities smart, saving the world from copyright violators, or on the contrary, secretly transmitting information or resources, escaping from government control in one sphere or another. Regardless of the area, all […]
I dedicate this post to those individuals who lied on their certificates, which almost led us to install Bengal lights in our halls. The story is more than four years old, but I publish it now because the NDA has expired. Back then, we realized that we had nearly completely loaded the data center (which we rent out), and its energy efficiency didn't seem to improve much. Previously, the hypothesis […]
On September 17, the Raiffeisen Bank Acceleration Team invites you to its first open Meetup, which will take place at the office in Nagatino. Trends in DevOps, building pipelines, managing product releases, and much more about DevOps! That evening, experiences and knowledge will be shared by: Mikhail Bijan, Raiffeisen Bank. TRENDS AND TENDENCIES IN THE DEVOPS INDUSTRY RIGHT NOW. Following the event that took place in June in London […]
An extremely unpleasant story happened to one of my acquaintances. However, as unpleasant as it was for Mikhail, it was equally entertaining for me. I must say, my friend is quite a UNIX user: he can install the system himself, set up MySQL, PHP, and make basic Nginx configurations. He has about a dozen or so websites dedicated to construction tools. One of those sites focuses on chainsaws tightly […]
Hello, Community! My name is Mikhail Podivilov. I am the founder of the public organization 'Medium'. I have been repeatedly asked to write a brief but comprehensive guide on how to connect to the decentralized Internet service provider 'Medium' in overlay mode, that is, without directly connecting to the operator's router 'Medium', but by using the Internet and Yggdrasil as transport. In […]
Introduction Hello, friends! I was surprised to notice that there aren't many articles on Habr dedicated to products from the vendor [Extreme Networks](https://tssolution.ru/katalog/extreme). To address this and familiarize you more with the Extreme product line, I plan to write a small series of articles, starting with switches for enterprises. The series will include the following articles: Overview […]
In large cloud systems, the issue of automatic load balancing or resource allocation becomes particularly pressing. This concern has been addressed by Tionix (a developer and operator of cloud services, part of the Rostelecom group). Since our main development platform is OpenStack, and we, like everyone else, are a bit lazy, we decided to select a ready-made module that […]
In the previous article, we discussed attempts to use Watcher and presented a test report. We periodically conduct such tests for load balancing and other critical functions of a large enterprise or operator cloud. The high complexity of the task may require several articles to describe our project. Today, we are publishing the second article in the series, focusing on load balancing virtual machines in the cloud. A bit of terminology […]
Today, we will study PAT (Port Address Translation), a technology for translating IP addresses using ports, and NAT (Network Address Translation), the technology that transforms the IP addresses of transit packets. PAT is a specific case of NAT. We will cover three topics: — private or internal (intranet, local) IP addresses and public or external IP addresses; — NAT and PAT; — configuring NAT/PAT. Let's begin […]
The standard local area network, in its current (average) form, was finalized many years ago, and its development has stagnated. On the one hand, the best is the enemy of the good; on the other hand, stagnation is not good either. Moreover, upon closer inspection, a modern office network capable of performing nearly all tasks of a typical office can be built more cheaply and […]
Despite the fact that there have been several articles about IPFS on Habr, I want to clarify right away that I am not an expert in this field, but I have shown interest in this technology several times. However, attempts to experiment with it have often caused some frustration. Today, I took up experiments once again and got some results that I would like to share. […]