Administration Section
Translator’s note: The author of this material is Cindy Sridharan, an engineer from imgix, focusing on API development and, in particular, microservices testing. In this material, she shares her comprehensive vision of current issues in distributed tracing, where, in her opinion, there is a lack of truly effective tools to solve pressing challenges. [The illustration is borrowed from another material on distributed […]
So, let's imagine this. In a room, five cats are locked in, and to wake their owner, they must agree together, since they can only open the door by piling up together. If one of the cats is Schrödinger's cat, and the others are unaware of his decision, the question arises: 'How can they do this?' In this […]
When a Linux database server unexpectedly crashes, it's essential to find out why. There could be several reasons. For instance, SIGSEGV indicates a failure due to a bug in the backend server. However, that's rare. More often, it's simply a lack of disk space or memory. If disk space has run out, the only solution is to free up space and restart the database. Out-Of-Memory Killer: When the server […]
Chaos Constructions 2019 will take place on August 24-25, traditionally on the last weekend of summer, in St. Petersburg. The festival will feature more than 60 presentations at its conference. Originally focused on the demo scene, the computers that are now considered retro were once the most advanced. It all began in 1995 with the ENLiGHT festival, which was organized […]
SkyShip Dusk by SeerLight Building any service inevitably involves ongoing work on security. Security is a continuous process that includes constant analysis and enhancement of the product's protection, monitoring news on vulnerabilities, and much more. This includes audits. Audits are conducted both internally and by external experts, who can provide significant […]
Southbridge, with its Slurm, is the only company in Russia that has a KTP (Kubernetes Training Provider) certificate. Slurm has turned one year old. During this time, 800 people have participated in our Kubernetes intensives. It's the perfect time to start writing memoirs. From September 9-11 in St. Petersburg, the Selectel conference hall will host yet another Slurm, the fifth in a row. There will be an introduction to Kubernetes: each participant will create a cluster in […]
Image: Pexels For aggregator websites in e-commerce, it is crucial to maintain up-to-date information. Otherwise, their main advantage — the ability to see the most relevant data in one place — disappears. To solve this issue, web scraping techniques must be employed. This involves creating specialized software — a crawler that navigates the required websites from a list, […]
Today we will talk about static routing and cover three topics: what static routing is, how it is configured, and what its alternative is. You see a network topology that includes a computer with the IP address 192.168.1.10, connected via a switch to a gateway, or router. This connection uses the router's f0/0 port with the IP address 192.168.1.1. The second port of this router […]
Let's discuss three tasks that ITSM can help solve: software development management, data protection, and process optimization beyond IT departments. Source: Unsplash / Photo: Marvin Meyer Software Development Management Many companies utilize agile methodologies like Scrum. Even engineers from Axelos, who develop the ITIL methodology, use them. Four-week sprints help the team track progress effectively and […]
There is a vast amount of information online about creating Wi-Fi access points based on the Raspberry Pi single-board computer. Typically, it is assumed that the native operating system for the 'Pi'—Raspbian—will be used. As an enthusiast of RPM-based systems, I couldn't pass by this little marvel without trying my favorite CentOS on it. This article provides instructions for creating a 5GHz/AC Wi-Fi router […]
Today's lesson is an introduction to Cisco routers. Before we dive into the material, I want to congratulate everyone watching my course, as nearly a million people have viewed the 'Day 1' video lesson to date. I thank all the users who contributed to the study of the CCNA video course. Today we will cover three topics: the router as a physical device, a brief […]
Authors: Ted Yang, Pritam Shah, and the Technical Specifications Committee (Carlos Alberto, Bogdan Drutu, Sergey Kanjaliev, and Yuri Shkuro). The collaborative project is titled: http://opentelemetry.io In brief: We are creating a new unified set of libraries and specifications for telemetry observability. It will combine the OpenTracing and OpenCensus projects and provide a supported way for migration. The reference implementation on […]