Blog Section
On July 26, 2019, Google proposed to reduce the maximum validity period of SSL/TLS server certificates from the current 825 days to 397 days (about 13 months), effectively halving it. Google believes that only full automation in certificate management can eliminate the current security issues often attributed to human error. Therefore, ideally, it is necessary to […]
In the upcoming release and current beta versions of kernel Linux 5.4, support for the Microsoft exFAT file system driver has appeared. However, this driver is based on an older code from Samsung (branch version 1.2.9). In its own smartphones, the company is already using a version of the sdFAT driver based on branch 2.2.0. Now, information has been released that a developer from South Korea, Park Joo Hyun […]
Hello everyone! I've started translating a small book: 'Understanding Message Brokers', by Jakub Korab, published by O'Reilly Media, Inc., publication date: June 2017, ISBN: 9781492049296. From the introduction to the book: '… This book will teach you to think about message exchange systems using brokers by comparing and contrasting two popular broker technologies: Apache ActiveMQ and Apache Kafka. Here, use cases will be discussed […]
Last week, developers of the popular password manager LastPass released an update that addresses a vulnerability that could lead to the leak of user data. The issue was announced after it was resolved, and users of LastPass were advised to update their password manager to the latest version. The vulnerability allowed attackers to steal data entered by users on the last visited website. […]
It seems that autumn is not a good time for Windows 10 developers. Otherwise, it is hard to explain the fact that nearly a year ago, build 1809 displayed a whole bunch of issues, even after being re-released. This includes incompatibility with older AMD graphics cards, issues with Windows Media search, and even crashes in iCloud. However, it seems that the situation is still […]
In the world of engineering education, there are many excellent courses, but often the training programs built around them have one serious drawback — a lack of good coherence between different topics. One might argue: how is that possible? When forming a curriculum, prerequisites and a clear order of subjects to be studied are specified for each course. For example, in order to gather and [...]
In the past decade, in addition to methods for extracting secrets or performing other unauthorized actions, attackers have started using unintentional data leakage and manipulation of program execution processes through side channels. Traditional attack methods can be costly in terms of knowledge, time, and computational power. Side-channel attacks, on the other hand, may be easier to implement and non-destructive, [...]
Main innovations: The pidfd mechanism, which allows binding a specific PID to a certain process. The binding continues to act even after the process has been terminated, so the PID can be reassigned upon restart. Details. Frequency range restrictions in the process scheduler. For example, critical processes can be launched with a minimum frequency threshold (say, no less than 3 GHz), while low-priority ones can have an upper frequency limit [...]
The vim editor fork – Neovim has finally crossed the version 0.4 milestone. Key changes: Added support for floating windows. Demo. Added support for multigrid. Previously, Neovim had a single grid for all created windows, now they are separate, allowing customization of each: changing font sizes, window styles, and adding individual scrollbars. Introduced 'Nvim-Lua [...]
After two months of development, Linus Torvalds presented the release of Linux kernel 5.3. Among the most notable changes: support for AMD Navi GPUs, Zhaoxi processors, and Intel Speed Select power management technology, the ability to use umwait instructions to wait without using cycles, the 'utilization clamping' mode to enhance interactivity for asymmetric CPUs, the pidfd_open system call, the ability to use IPv4 addresses from the 0.0.0.0/8 subnet, the ability [...]
One of the most important decisions a developer makes is which database to use. For many years, options were limited to various types of relational databases that supported Structured Query Language (SQL). These include MS SQL Server, Oracle, MySQL, PostgreSQL, DB2, and many others. In the last 15 years, many new […]
I will broadly discuss cross-replication between PostgreSQL and MySQL, as well as methods for configuring cross-replication between these two database servers. Typically, databases in cross-replication are referred to as homogeneous, and this is a convenient method for transitioning from one relational DBMS server to another. PostgreSQL and MySQL databases are considered relational, but […]