Blog Section
In the beginning, there was a technology called BPF. We looked at it in the previous, Old Testament, article in this series. In 2013, thanks to the efforts of Alexei Starovoitov and Daniel Borkman, an enhanced version was developed and included in the Linux kernel, optimized for modern 64-bit machines. This new technology briefly had the name Internal BPF, […]
After Zextras released its own builds of Zimbra Collaboration Open-Source Edition 9, many administrators decided to upgrade their mail servers to the new version and reached out to Zextras technical support to inquire about how this can be done without jeopardizing the functionality of one of the enterprise's key systems. Upgrading to Zimbra OSE 9 from Zextras can be done […]
The release of the main branch of nginx 1.19.2 has been formed, continuing the development of new features (only changes related to fixing serious bugs and vulnerabilities are made in the parallel stable branch 1.18). Key changes: Keepalive connections are now starting to close before exhausting all available connections, and corresponding warnings are reflected in the log. An optimization for reading the client’s request body has been implemented when using chunked transfer. […]
Intel has reported the elimination of 22 vulnerabilities in its server motherboards, server systems, and compute modules firmware. Three vulnerabilities have been assigned a critical level (CVE-2020-8708 — CVSS 9.6, CVE-2020-8707 — CVSS 8.3, CVE-2020-8706 — CVSS 4.7), manifesting in the firmware of the Emulex Pilot 3 BMC controller used in Intel products. These vulnerabilities allow unauthorized access without authentication […]
The release of the QEMU project 5.1 has been presented. As an emulator, QEMU enables the execution of programs built for one hardware platform on a system with a completely different architecture, for example, running an ARM application on an x86-compatible PC. In virtualization mode, the performance of code execution in an isolated environment is close to that of a native system due to direct execution of instructions on the CPU and utilization of […]
Have you studied Git commands but want to understand how continuous integration (CI) happens in reality? Or perhaps you want to optimize your daily actions? This course will provide you with practical continuous integration skills using a GitHub repository. This course is not designed as a wizard that you can simply click through; on the contrary, you will be performing the same actions […]
I have worked in IT for over 20 years, but I never got around to working with containers. Theoretically, I understood how they are structured and how they function. However, since I had never encountered them in practice, I wasn't sure how exactly the gears turn under the hood. Furthermore, I had no idea […]
Since August 2017, when Cisco acquired Viptela, Cisco SD-WAN has become the main technology for organizing distributed corporate networks. Over the past three years, the SD-WAN technology has undergone numerous changes in both qualitative and quantitative aspects. This has significantly expanded its capabilities and added support on traditional routers such as Cisco ISR 1000, ISR 4000, ASR 1000, and […]
The 5.5 version of the WordPress content management system has been released, named "Eckstine" in honor of jazz musician Billy Eckstine. The main changes involve improvements in speed, search optimization, and enhanced security: Better page loading speed using lazy loading technology (asynchronous loading that saves time, traffic, and battery life when browsing on mobile devices). A new sitemap.xml file is provided for search engines. […]
My name is Pyotr Zaitsev, I am the CEO and founder of Percona, and I want to talk about how we transitioned from open-source solutions to Database as a Service; what approaches exist for deploying databases in the cloud; how Kubernetes can replace DBaaS by eliminating vendor lock-in while maintaining the simplicity of a DBMS as a service. This article is based on a presentation at the @Databases Meetup […]
For several years now, I have been supporting 10 workstations in the university running on Microsoft Windows 8.1. Primarily, this support involves installing necessary software for the educational process and ensuring overall functionality. Each workstation has 2 users: Administrator and Student. The Administrator has full control, while the Student cannot install software. To avoid overburdening myself […]
The release of the desktop-oriented GhostBSD 20.08 distribution is now available, built on the TrueOS platform and offering the MATE desktop environment. By default, GhostBSD uses the OpenRC initialization system and the ZFS file system. It supports both Live mode and installation on a hard drive (using the custom ginstall installer, written in Python). Boot images are created for the x86_64 architecture (2.5 GB). […]