Blog Section
Assuming that STP is in a converged state. What happens if I take a cable and connect switch N directly to root switch A? The Root Bridge will 'see' that it has a new active port and will send a BPDU over it. Switch N, upon receiving this frame with a cost of zero, will determine the path cost through the new port as 0+19 = 19 at […]
After many years of working in schools, I have created a database of physics problems for preparing for Olympiads. Problems can be searched by relevant topics, levels, and grades. Then they can be sent for printing, or shared via a link with students. And although I am no longer working in schools, I decided that it would be a shame for the good to go to waste. The site is free of ads and other monetization. If you are a teacher […]
The Windows 10 May 2019 Update did not pose significant problems after its release, unlike last year's version. However, it seems that fate has caught up with the company from Redmond. The recently released update KB4512941 turned out to be quite problematic for users. Firstly, it was causing high CPU usage on PCs using the Cortana voice assistant, specifically the SearchUI.exe process. One core of the CPU was fully […]
Almost every day we hear about new hacker attacks and vulnerabilities discovered in popular systems. There's been a lot of talk about how cyberattacks have significantly influenced election outcomes! And not just in Russia. It seems obvious that there is a need to take measures to protect our devices and online accounts. The problem is that […]
After more than a year of development, the LXLE 18.04.3 distribution aimed at outdated systems has been released. The LXLE distribution is based on the work of Ubuntu MinimalCD and seeks to provide an extremely lightweight solution that combines support for older hardware with a modern user environment. The need to create a separate branch stems from the desire to include additional drivers for older systems and a reworked user interface. […]
PostgreSQL 12, the latest version of the 'world's best open-source relational database,' is set to be released in a couple of weeks (if all goes according to plan). This fits with the usual schedule — a new version with a host of new features comes out once a year, and honestly, it's impressive. That's why I became an active member of the PostgreSQL community. In my opinion, unlike […]
Purism has announced the first shipments of pre-ordered free Librem 5 smartphones. The first batch will begin shipping on September 24 of this year. The Librem 5 is a project to create a smartphone with fully open and free software and hardware that ensures user privacy. It comes with PureOS — a GNU/Linux distribution approved by the Free Software Foundation (FSF). One of the key […]
The GCC compiler suite has accepted code for compiling programs for the Linux kernel's embedded eBPF bytecode interpreter. Thanks to JIT compilation, bytecode is translated into machine instructions on the fly in the kernel, achieving native code performance. Patches supporting eBPF have been accepted into the branch from which GCC 10 is developed. Besides the backend for bytecode generation […]
Alexander Larsson, the Flatpak developer and an active participant in the GNOME community, has published the second release of the Gthree project, which is developing a port of the 3D library three.js for GObject and GTK. This can be used in practice to add 3D effects to GNOME applications. The Gthree API is practically identical to three.js, including a glTF (GL Transmission Format) loader and the ability to use materials in models on […]
The release of the new stable branch WebKitGTK 2.26.0 has been presented, which is a port of the WebKit browser engine for the GTK platform. WebKitGTK allows you to use all the capabilities of WebKit via a GNOME-oriented interface based on GObject and can be used to integrate web content processing tools into any applications, from specialized HTML/CSS parsers to full-featured web browsers. Notable projects using WebKitGTK include Midori […]
Of the ten projects in the Russian industrial market today, only two are new constructions, while the others are related to the reconstruction or modernization of existing facilities. To perform any project work, the client chooses a contractor from among companies, which is quite challenging to compare linearly due to subtle but significant differences in the structure and organization of internal processes. Two main competing forces […]
On September 4, SeaMonkey 2.49.5 was released. SeaMonkey is a suite of integrated internet applications, including a web browser, email client, RSS/Atom aggregator, and a WYSIWYG HTML page editor. The 2.49.5 release is synchronized with the code base of Firefox 52.9.0 ESR and Thunderbird 52.9.1 ESR (see corresponding release notes for links). Features: Security-related fixes from the Mozilla Firefox code base have been ported, including […]
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