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Background Hello, Habr! The writing of this post was prompted by a rather strange error that I encountered last night on a laptop with Linux (yes, I'm one of those odd people who uses GNU/Linux on a laptop) when I got the following instead of the contents of my Yandex.Disk: $ ls -l /mnt/yadisk ls: reading directory ‘.’: Input/output error total 0 The first thought: the network dropped, nothing serious. But when […]
Microsoft has released another update for its Edge browser in the Apple App Store. The new version 44.13.1 introduces two fresh features aimed at increasing the product's appeal to iOS users. First, iPhone and iPad users who prefer Microsoft's creation over Apple's Safari browser now have the option to enable tracking prevention, with the ability to choose between basic, balanced, or maximum blocking. […]
Qualys has discovered yet another critical remote vulnerability (CVE-2020-8794) in the OpenSMTPD mail server developed by the OpenBSD project. Just like the vulnerability identified at the end of January, the new issue allows remote execution of arbitrary shell commands on the server with root user privileges. The vulnerability has been patched in OpenSMTPD release 6.6.4p1. The problem is caused by an error in the code responsible for delivering mail to the remote mail […]
Aaron Griffin has stepped down as the leader of the Arch Linux project. Griffin has held the leadership position since 2007, but his activity has recently decreased significantly, and he has decided to hand over his role to another member capable of making tough decisions and guiding the project's development in the right direction. The new project leader was selected through a vote among developers […]
Ethernet is everywhere, and tens of thousands of manufacturers produce equipment that supports it. However, almost all of these devices share one common number – MTU: $ ip l 1: lo: mtu 65536 state UNKNOWN link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 2: enp5s0: mtu 1500 state UP link/ether xx:xx:xx:xx:xx:xx brd ff:ff:ff:ff:ff:ff MTU (Maximum Transmission Unit) [maximum transmission unit] […]
With this post, I want to open a series of articles dedicated to IdentityServer4. We'll start with the basic concepts. The most promising authentication protocol at the moment is OpenID Connect, and the authorization protocol (granting access) is OAuth 2.0. IdentityServer4 implements these two protocols. It is optimized to address typical security issues. OpenID Connect is an authentication protocol and standard; it does not provide […]
Blue Systems, the company providing funding for the development of KWin and Kubuntu, has released the Netrunner 2020.01 distribution featuring the KDE desktop. Unlike the versions developed by the same company, Netrunner Rolling and Maui, this release adopts a traditional approach to building and Debian-based package management, without using a rolling update model based on Arch/Kubuntu. Netrunner differs from Kubuntu in its approach […]
Attention! This article is not technical and is intended for readers interested in education in the field of CI/CD. If you are not interested in learning, this material will likely not appeal to you. If you are a developer or administrator responsible for setting up continuous integration and delivery processes, OTUS has opened enrollment for a course specifically […]
Note from the translator: In this article, Banzai Cloud shares an example of using its specialized tools to simplify the operation of Kafka within Kubernetes. The instructions provided illustrate how to determine the optimal size of the infrastructure and configure Kafka to achieve the required throughput. Apache Kafka is a distributed streaming platform for building reliable, scalable, and high-performance real-time streaming systems. […]
A symbol is a textual atom. Nothing more, nothing less. In the text, each symbol appears a certain number of times. By breaking down the text into symbols, one can notice certain features and patterns. Let’s talk about this. [If without words: source files for the article] The text consists of a limited set of symbols. We denote the alphabet of the text as the set of all symbols occurring in the text. And this set […]
The concept of the RX100 series, the first camera of which was released in 2012, can be described as follows: maximum functionality in minimal dimensions. Significant changes were seen in the previous model, the RX100 VI: the company altered the concept of the built-in lens, stepping towards increasing the focal range while reducing aperture. The new model features the same lens, so […]
On February 5 of this year, a new standard for 10-megabit Ethernet was approved. Yes, you read that correctly: ten megabits per second. What is such a "small" speed needed for in the 21st century? To replace the menagerie hiding under the comprehensive name ‘field bus’ — Profibus, Modbus, CC-Link, CAN, FlexRay, HART, etc. There are too many of them, and they are incompatible with each other […]
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