Blog Section
In the article Raspberry Pi + CentOS = Wi-Fi Hotspot (or Raspberry Router in a Red Hat), I described a method to turn the 'berry' into a wireless access point using the CentOS operating system. By assembling my home router according to this blueprint, I satisfied my creative ego and gained peace of mind regarding a critically important element of my cozy infrastructure. However, the feeling […]
Today, Microsoft announced that the Windows 10 operating system is used on more than a billion devices worldwide. The company had aimed for Windows 10, released in 2015, to surpass this milestone by 2017, but the discontinuation of support for Windows Phone and the reluctance of many Windows 7 users to upgrade to the new version delayed this moment until […]
The Linux Mint project has released a stable version of the Linux Mint Debian Edition 4 operating system. Its main difference from the 'regular' Mint version based on Ubuntu lies in the use of the Debian package base. The new version has improvements also available in Linux Mint 19.3. Among them are the updated Cinnamon 4.4 user interface, new default software, and recovery tools […]
In the Microsoft Edge browser based on the Chromium engine, the ability to change the search engine has emerged not only in the address bar but also on the new tab. By default, the native search engine Bing is set to operate when opening a new page. This feature is similar to Google’s own browser. While the default search engine can be changed in the address bar, […]
Synology has released the DiskStation DS220j — a basic level network-attached storage system designed for home or office use. The new device is built on a quad-core Realtek RTD1296 processor with a clock speed of up to 1.4 GHz. It has 512 MB of DDR4 RAM. It allows the installation of two drives of 3.5 or 2.5 inches with SATA 3.0 interface. The maximum supported […]
After a year of development, the new stable release branch of the Postfix mail server — 3.5.0 — has been launched. At the same time, support for the Postfix 3.1 branch, released in early 2016, has been discontinued. Postfix is one of the few projects that combines high security, reliability, and performance, achieved through a well-thought-out architecture and a sufficiently strict code policy and […]
The developers of the Redox operating system, written using the Rust language and the microkernel concept, have introduced a new package manager called pkgar. The project is developing a new package format, a library for package management functions, and a command-line tool for creating and extracting a cryptographically verified collection of files. The pkgar code is written in Rust and is distributed under the MIT license. The pkgar format does not […]
The developers of the Netfilter packet filtering and modification subsystem have published a set of patches that significantly speed up the processing of large match lists (nftables set) requiring the verification of combinations of subnets, network ports, protocol, and MAC addresses. The patches have already been accepted into the nf-next branch, which will be proposed for inclusion in the Linux 5.7 kernel. The most noticeable speedup has been achieved by utilizing AVX2 instructions […]
If you have trouble grasping the essentials of working with a Git repository from the console, you can always turn to a graphical client. One such client is Lazygit, a semi-graphical client written in Go using the gocui library. In the program's official description, the author explains how difficult it can be to understand what needs to be done in Git, if […]
My name is Yuri, and I am the head of the system administration group at Citymobil. Today, I will share my experience working with thin provisioning technology in Linux file systems and explain how it can be applied in the company's CI/CD processes. We will discuss the situation where we need MySQL database copies as quickly as possible for automatic code testing when deploying it to production, maximizing […]
Network engineers often face the task of performing copy/paste of specific fragments from a notepad to the console. Usually, several parameters need to be copied: Username/Password and something else. Using scripts can speed up this process. However, the combined time taken to write and execute the script should be less than setting it up manually; otherwise, scripts are useless. This article is needed for that purpose. This article from […]
The only developer of discrete magnetoresistive memory chips, Everspin Technologies, continues to advance manufacturing technologies. Today, Everspin and GlobalFoundries have agreed to jointly develop the technology for manufacturing STT-MRAM chips with 12 nm standards and FinFET transistors. Everspin holds over 650 patents and applications related to MRAM memory. This memory type allows writing to a cell in a manner similar to […]