Administration Section
Greetings to our readers in our series of articles dedicated to SMB Check Point, specifically the 1500 series model line. In the first part, we mentioned the ability to manage your SMB series NGFW through the cloud service Security Management Portal (SMP). Finally, it is time to discuss it in more detail, demonstrating the available options and administration tools. For those who have just joined […]
In this article, I want to share my experience using open-source systems Zabbix and Grafana for visualizing the operation of production lines. This information may be useful for those looking for a quick way to visually depict or analyze collected data in industrial automation or IoT projects. This article is not a detailed guide; rather, it is a concept of a monitoring system based on open software […]
I collect all the most important texts of all time and peoples that influence our worldview and understanding of the world ('Ontol'). And here, after thinking for a while, I propose a bold hypothesis that this text is more revolutionary and important in our understanding of the structure of the world than the Copernican revolution and the works of Kant. In the Russian internet, this text (full version) was in terrible condition, […]
A couple of days ago, we completed one of the most emotionally charged events that we were lucky enough to host on our blog — a hacker online game with server destruction. The results exceeded all our expectations: participants not only joined but quickly organized into a cohesive community of 620 people on Discord, which literally stormed the quest over the course of two days without a break for […]
Introduction Some time ago, I was tasked with developing a fault-tolerant cluster for PostgreSQL, operating across several data centers connected by fiber optics within a single city, and capable of withstanding the failure (e.g., power outage) of one data center. For the software responsible for fault tolerance, I chose Pacemaker, as it is the official solution from RedHat for creating fault-tolerant clusters. It is beneficial because […]
Let’s explore the concept of Kubernetes monitoring, familiarize ourselves with the Prometheus tool, and discuss alerting. The topic of monitoring is extensive and cannot be covered in a single article. The aim of this text is to provide an overview of the tools, concepts, and approaches. The content is a summary from an open lecture at the 'Slurm' school. If you want to undergo complete training, enroll in the course on Infrastructure Monitoring and Logging […]
The importance of Software Composition Analysis (SCA) in the development process is increasing as annual reports on vulnerabilities in open source libraries are published by companies such as Synopsys, Sonatype, Snyk, and White Source. According to the report The State of Open Source Security Vulnerabilities 2020, the number of identified vulnerabilities in open source in 2019 increased by nearly 1.5 times.
We live in an amazing time where you can quickly and easily connect several ready-to-use open tools, configure them with 'disconnected awareness' following advice from Stack Overflow, without delving into the 'many letters', and launch them into commercial operation. But when it's time to update/expand or someone accidentally reboots a couple of machines, you realize that you've entered some persistent, annoying nightmare awake, and everything has suddenly become much more complicated.
Note: This provocative article about blockchain was written and published about two years ago in Dutch. Recently, it was translated into English, sparking renewed interest from an even larger IT community. Although some figures have become outdated since then, the essence that the author tried to convey remains the same. Blockchain will change everything: the industry...
The communities of Ceph users are filled with stories of how everything broke, failed to start, or became unresponsive. Does this mean that the technology is bad? Absolutely not. It signifies that development is taking place. Users encounter the bottlenecks of the technology, find recipes and solutions, and send patches upstream. The more experience there is with the technology, and the more users bet on it, the more documented problems there will be.
The .NET developers community of Raiffeisenbank continues the brief overview of the ViennaNET content. For information on how and why we came to this, you can read part one. In this article, we'll cover the libraries for working with distributed transactions, queues, and databases that have not yet been reviewed, which can be found in our GitHub repository (the source code is here), and Nuget packages are here. ViennaNET.Sagas When ...
Hello everyone! We are the .NET developers community of Raiffeisenbank, and we want to share about a set of infrastructure libraries on .NET Core for rapidly creating microservices within a unified ecosystem. We have released it as Open Source! A bit of history: Once, we had a large monolithic project that gradually transformed into a set of microservices (you can read more about the peculiarities of this process in this article). In the process […]