Blog Section
Hello everyone, my name is Alexander, and I am a Data Quality engineer who deals with checking data for its quality. This article will discuss how I got to this point and why in 2020 this area of testing came to the forefront. Global Trend Today's world is experiencing another technological revolution, one of the aspects of which is […]
The professions of Data Scientist and Data Engineer are often confused. Each company has its own specifics in working with data, different goals for analysis, and varying perspectives on which specialist should handle which part of the work, leading to unique requirements. Let's explore the differences between these specialists, the business tasks they tackle, the skills they possess, and their earning potential. Material […]
Developers at Microsoft have introduced a mechanism for Integrity Policy Enforcement (IPE), implemented as an LSM module (Linux Security Module) for the Linux kernel. This module allows for the definition of an overall integrity assurance policy for the entire system, specifying which operations are permissible and how to verify the authenticity of components. Through IPE, it is possible to specify which executable files are allowed to run and ensure that […]
A new version of Crystal, the compiled programming language with Ruby syntax, has been released. Its main features include a runtime with a built-in event loop where all input-output operations are asynchronous, support for multithreading (currently enabled by a flag during compilation), and exceptionally simple and convenient work with C libraries. Starting from version 0.34.0, the language officially begins a steady advancement toward its first […]
Firefox 75 is now available. The Quantum Bar address bar, which debuted in Firefox 68, has received its first major update: The address bar size significantly increases when it gains focus (browser.urlbar.update1). Before the user starts typing, the dropdown menu displays top sites (browser.urlbar.openViewOnFocus). The history dropdown menu no longer shows the https:// protocol. Using a secure connection […]
This article is dedicated to the peculiarities of monitoring network equipment using the SNMPv3 protocol. We will discuss SNMPv3, I will share my findings on creating comprehensive templates in Zabbix, and I will show what can be achieved when organizing distributed alerting in a large network. The SNMP protocol is essential for monitoring network equipment, and Zabbix is excellent for monitoring a large number of objects and […]
Noticing something wrong with your network lately? For instance, my Wi-Fi regularly disconnects, my favorite VPN stopped working, and some websites take five seconds to load or don’t have images at all. Governments around the world have imposed quarantine and restricted people’s movement due to the coronavirus. As a result, there has been a significant increase in internet traffic across the board. […]
A test version of the UbuntuDDE distribution is now available, based on the codebase of the upcoming Ubuntu 20.04 LTS release. The distribution comes with the DDE (Deepin Desktop Environment), which is the main shell of the Deepin distribution, and is also optionally available in Manjaro. Unlike Deepin Linux, UbuntuDDE uses the Ubuntu Software Center (Snap Store based on […] instead of the Deepin app store.
The release of the Firefox 75 web browser has occurred, as well as the mobile version Firefox 68.7 for the Android platform. Additionally, an update for the long-term support branch 68.7.0 has been formed. The Firefox 76 branch will enter beta testing soon, with its release scheduled for May 5 (the project has shifted to a 4-5 week development cycle). Key innovations: Official builds for Linux have begun to be formed in […]
Google has introduced an experimental implementation of a new add-ons menu that will provide users with more information about the permissions granted to each add-on. The essence of the change is that by default, pinning add-on icons next to the address bar will be suggested to be discontinued. Instead, a new menu designated by a puzzle icon will appear next to the address bar, listing all available add-ons and their […]
Introduction The concept of building a 'Digital Substation' in the power industry requires synchronization with an accuracy of 1 μs. Financial transactions also require precision in microseconds. In these applications, the accuracy of NTP is no longer sufficient. The PTPv2 synchronization protocol, described by the IEEE 1588v2 standard, enables synchronization accuracy of a few tens of nanoseconds. PTPv2 allows sending synchronization packets over L2 and L3 networks. The main […]
Introduction Recently, while working on my thesis, I encountered the need to create an Ubuntu image for a single-board computer with ROS (Robot Operating System) already installed. Briefly, the thesis focuses on managing a group of robots. The robots are equipped with two wheels and three range finders. Everything is controlled from ROS running on an ODROID-C2 board. Robot Ladybug. Sorry for […]