Category: Administration

Intel Xeon E-2200. Server Cores, Budget

Following the significant Intel Xeon W update for workstations, new Xeon E processors for entry-level servers have emerged. Compared to their predecessors, the core count has increased while prices remain the same—this means that the Xeon E has also become cheaper on a per-core basis. Those who associate with […] may be surprised by the introduction of Xeon E.

How to Write a Smart Contract in Python on the Ontology Network. Part 2: Storage API

This is the second part of a series of educational articles on creating smart contracts in Python on the Ontology blockchain network. In the previous article, we explored the Blockchain & Block API for Ontology smart contracts. Today, we will discuss how to use the second module—Storage API. Storage API consists of five related APIs that enable adding, removing, and modifying data in the persistent storage of smart contracts on […]

Knative – Platform as a Service based on k8s with serverless support

The dominant platform for deploying containers has certainly become Kubernetes. It offers the ability to manage almost everything using its APIs and user controllers that extend its APIs with custom resources. However, the user still has to make detailed decisions about how to deploy, configure, manage, and scale applications. Issues regarding application scalability, security, and passing […] remain at the user's discretion.

Public testing of a privacy and scalability solution in Ethereum on cloud platforms

The blockchain trend continues to gain momentum. More and more experts forecast the universal adoption of this technology in the near future. Currently, several issues remain unresolved, hindering this process. First and foremost, modern blockchain systems struggle with scalability. For instance, Ethereum's throughput is only 20 transactions per second, and despite numerous advantages, it is not suitable for large businesses. In the meantime […]

3CX v16 Update 4 Alpha and 3CX for Android, PBX development plans

Introducing 3CX v16 Update 4 Alpha! This update enables calls from the browser 'engine' without needing to open a web client tab. It even works with the browser completely closed! This means you can now take calls directly in your current application — CRM system, Office 365, etc. A small window will appear on the side of your desktop, resembling a mobile app […]

Data Mesh: how to work with data without a monolith

Hello, Habr! We at Dodo Pizza Engineering really love data (who doesn't?). Here's a story about how to accumulate all the data from Dodo Pizza and provide easy access to this vast array of information for any employee in the company. The task is to save the nerves of the Data Engineering team. Like true pack rats, we gather all sorts of info […]

Object Storage in a Backend, or How to Become Your Own Service Provider

The first prototype of object storage appeared in 1996. Ten years later, Amazon Web Services launches Amazon S3, and the world begins to gradually lose its mind over flat address spaces. Thanks to its work with metadata and its ability to scale without faltering under load, object storage quickly became the standard for most cloud data storage services, and […]

An Interview with Mikhail Chinkov About Work and Life in Berlin

Mikhail Chinkov has been living and working in Berlin for two years. He shared with us how the work of a developer differs between Russia and Germany, whether DevOps engineers are in demand in Berlin, and how to find time for travel. About the Move Since 2018, you’ve been living in Berlin. How did you make that decision? Did you consciously choose the country and company in advance? […]

Windows Server Core vs GUI and Software Compatibility

We continue to discuss working on virtual servers with Windows Server 2019 Core. In previous posts, we shared how we prepare client virtual machines using our new VDS Ultralight plan with Server Core for 99 rubles. We then demonstrated how to work with Windows Server 2019 Core and how to install a GUI on it. In this article, we […]

Setting up the official PostgreSQL template on Zabbix 4.4

Hello everyone. Zabbix now has an official Template for PostgreSQL DB. In this article, we'll set it up in Zabbix 4.4. NOTE If your English is good, I recommend installing the template using the official manual at github.com/zabbix/zabbix/tree/master/templates/db/postgresql. However, my article covers nuances not included in that link. Template Preparation 1. Navigate to the home directory. cd ~ […]

Automation For The Very Young. Part Two. Network Design

In the first two articles, I raised the issue of automation and sketched its framework, and in the second, I took a detour into network virtualization as the first approach to automating service configurations. Now it is time to draw the scheme of the physical network. If you're not familiar with data center networking devices, I highly recommend starting with an article about them. All issues: […]

Deployment strategies in Kubernetes: rolling, recreate, blue/green, canary, dark (A/B testing)

Note from the translator: This overview material from Weaveworks introduces the most popular application rollout strategies and discusses the implementation of the most advanced among them using the Kubernetes operator Flagger. It is written in simple language and contains illustrative diagrams, making it easy for even novice engineers to understand. The diagram is taken from another overview of rollout strategies provided by Container Solutions. One of […]

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