Blog Section
It so happened that my profession is a computer systems and networks administrator (in short: sysadmin), and over the course of more than 10 years of professional activity, I have worked with various systems, including those requiring [enhanced|additional] security measures. Additionally, some time ago, I found Bitcoin interesting, and I not only used it but also launched […]
I want to share with you my first successful experience in restoring full functionality to a Postgres database. I became acquainted with the Postgres DBMS six months ago, and prior to that, I had no experience administering databases at all. I work as a semi-DevOps engineer at a large IT company. Our company develops software for high-load services, and I am responsible for the functionality and maintenance […]
Last time we discussed how attempts to automate the learning process led to the creation of the very advanced PLATO system in the 1960s for its time. Many educational courses on various subjects were developed for it. However, PLATO had a drawback — access to the educational materials was available only to university students with special terminals. The situation changed with the arrival of personal computers. […]
The regional internet registry RIPE NCC, which is responsible for distributing IP addresses in Europe, Central Asia, and parts of Asia, has announced the allocation of the last available block of IPv4 addresses. In 2012, RIPE began distributing the last /8 block of addresses (approximately 17 million addresses) and reduced the maximum subnet size allocated to /22 (1024 addresses). Yesterday, the last /22 block was allocated, and there are no more available […]
A year and a half after the formation of branch 2.0, the release of the Devuan 2.1 "ASCII" distribution, a fork of Debian GNU/Linux, has been presented, delivered without the system manager systemd. The release continues to use the package base of Debian 9 "Stretch". The transition to the package base of Debian 10 will take place in the release of Devuan 3 "Beowulf", which is currently in development. Live builds and installation iso images have been prepared for download […]
A couple of years ago, Kubernetes was already being discussed in the official GitHub blog. Since then, it has become the standard technology for deploying services. Now, Kubernetes manages a significant portion of internal and public services. As our clusters have grown and performance requirements have become more stringent, we have started noticing sporadic delays in some services on Kubernetes that cannot be explained […]
On November 24, the Slyerm Mega, an advanced intensive course on Kubernetes, concluded. The next Mega will take place in Moscow from May 18-20. The idea behind Slyerm Mega: we look under the hood of the cluster, break down the intricacies of installing and configuring a production-ready cluster (‘the-not-so-easy-way’), and examine the mechanisms for ensuring security and application fault tolerance. Bonus for Mega participants: those who complete both Slyerm Basic and Slyerm Mega receive all […]
Gartner's chart for those working in technology is akin to a high fashion exhibition. By looking at it, you can get a preview of the most hyped words of the season and what you'll hear at upcoming conferences. We decoded what lies behind the beautiful words on this chart, so you can speak about it too […]
Devuan is a Linux distribution derived from Debian to provide an alternative init software to systemd and alternative dependencies for the functions and libraries offered by systemd. The latest release of the project is Devuan 2.1, which simplifies the choice between SysV init and OpenRC during installation. The distribution no longer provides ARM or virtual machine images, and the option to exclude non-free firmware […]
LibreELEC is a minimal Linux-based operating system that serves as a platform for the Kodi media center. LibreELEC runs on several hardware architectures and can work on both desktops and single-board computers with ARM processors. LibreELEC 9.2.0 improves driver support for webcams, operates on Raspberry Pi 4, and adds additional firmware update support. The release […]
Hello, colleagues! I want to share my solution to the problem mentioned in the title. I was inspired to write this article by my colleague brnovk, who took the initiative to propose a partial (for me) solution to the problem. I created my own "hack" that helped me. I'm sharing it with you. Problem description I used Ubuntu 18.04 for work and recently noticed that when switching keyboard layouts […]
The issue with young users of smartphones, tablets, and other internet-connected devices is not only that children may accidentally see, read, or download something inappropriate for their age, but also that due to their lack of life experience and knowledge, they are very vulnerable to the actions of malicious actors. Worse yet, children may find themselves […]