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Changing the license for Qt Wayland Compositor and enabling telemetry collection in Qt Creator

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Qt Group announced a change in the licensing of the Qt Wayland Compositor, Qt Application Manager, and Qt PDF components, which will be offered under the GPLv3 license starting with the Qt 5.14 release instead of LGPLv3. In other words, linking with these components will now require under GPLv3-compatible licenses to make the source code of programs available or purchasing a commercial license (previously, use […].

Your dynamic DNS with CloudFlare

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Preface For personal needs at home, I set up VSphere, where I run a virtual router and an Ubuntu server as a media server along with a bunch of other goodies, and this server needs to be accessible from the Internet. However, the problem is that my provider charges for static IPs, which can always be put to better use. So I used the ddclient combination + […]

Passive DNS in the Analyst's Hands

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The Domain Name System (DNS) is akin to a phone book, translating user-friendly names like "ussc.ru" into IP addresses. As DNS activity is present in nearly all communication sessions, regardless of protocol, DNS logging serves as a valuable data source for cybersecurity specialists, allowing them to detect anomalies or gather additional information about the research being conducted […]

The Plasma Mobile project is gaining momentum

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It also begins to publish weekly reports on the work done. Here’s what has been accomplished over the past two weeks: Plasma Nano Shell — the primary shell option for mobile and embedded devices; new APIs PagePool and PagePoolAction have been added to Kirigami for desktop and mobile applications; the MauiKit framework has been integrated into KDE Frameworks 5 and received new features; Nota — […]

Firefox 69.0.3 update and enhanced WebRender capabilities

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A corrective update for Firefox 69.0.3 has been released, which addresses the issue with the file download dialog display when clicking on email in Yahoo webmail. Additionally, it resolves file download issues when launching the browser in Windows 10 with parental control enabled. The ongoing development of the WebRender compositing system, written in Rust and offloading […], can also be noted.

Release of the cryptographic library Botan 2.12.0

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The release of the cryptographic library Botan 2.12.0 is now available, used in the NeoPG project, a fork of GnuPG 2. The library provides a large collection of ready-made primitives used in the TLS protocol, X.509 certificates, AEAD ciphers, TPM modules, PKCS#11, password hashing, and post-quantum cryptography (hash-based signatures and key agreement based on McEliece and NewHope). The library is written in C++11 and is provided under […].

Solution to the task from pwnable.kr 25 — otp. File size limit in Linux

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In this article, we will solve the 25th task from the pwnable.kr website. Organizational InformationSpecifically for those who want to learn something new and grow in any area of information and computer security, I will write and discuss the following categories: PWN; cryptography (Crypto); network technologies (Network); reverse engineering (Reverse Engineering); steganography (Stegano); finding and exploiting WEB vulnerabilities. Additionally, I […]

Fundamental testing issues

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Introduction Hello, Habr users. Recently, I was working on a test task for a QA Lead position at a fintech company. The first task, to create a test plan with a complete checklist and examples of test cases for testing an electric kettle, is trivial: GOST 7400-81. Electric kettles and household electric samovars. Technical conditions (with Changes No. 1-8) GOST IEC 60335-1-2015 Household and similar electrical appliances. Safety.

Bullet

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A bullet is a compensation system. Nothing supernatural, the idea is straightforward, and results are quick to appear. The name wasn’t created by me; it was coined by the owner of the company where this system was implemented. He listened to the arguments and features and simply said, "This is a Bullet!" He likely meant that he liked the system, rather than anything else.

NixOS 19.09 "Loris"

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On October 9, the official project website announced the release of NixOS 19.09, codenamed Loris. NixOS is a distribution with a unique approach to package management and system configuration. The distribution is built on a "functionally pure" package manager Nix and its own configuration system using a functional DSL (Nix expression language), allowing a declarative description of the desired system state. […]

New article: Review of Yandex.Station Mini: Jedi gadgets

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It all started a little over a year ago, in July 2018, when the first hardware device from Yandex was introduced — the ‘smart’ speaker Yandex.Station, indexed as YNDX-0001. Before we could properly marvel at it, devices from the YNDX series, equipped with the proprietary voice assistant Alice (or designed to work with it), began pouring out like a cornucopia. And now, for testing […]

File descriptor in Linux with examples

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Once, during an interview, I was asked what I would do if I discovered a non-functioning service due to the disk running out of space. Of course, I replied that I would check what was occupying that space and, if possible, clear some space. Then the interviewer asked, what if there is no free space on the partition, but there are also no files occupying all […]

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