Blog Section
Microsoft has released a fresh update for its new Chromium-based Edge browser for the Canary and Dev update channels. The patch in version 80.0.353.0 brings improvements to the InPrivate window, which now includes the Bing search panel. This allows direct input of search queries into Bing, as is done with Google and other search engines, rather than first going to bing.com […]
The most notable changes include: The lockdown module, which restricts root user's access to kernel files and interfaces. Details. The virtiofs file system for forwarding specific host directories to guest systems. Interaction follows a 'client-server' model via FUSE. Details. The fs-verity file integrity control mechanism. Similar to dm-verity, but works at the level of Ext4 and F2FS file systems, not block devices. Details. […]
Nowadays, it is no longer a question of why we need to collect service metrics. The next logical step is to set up alerting for the collected metrics that will notify you of any data deviations in convenient channels (email, Slack, Telegram). In the online hotel booking service Ostrovok.ru, all metrics of our services flow into InfluxDB and are displayed in Grafana, […]
Image: Unsplash When working with email newsletters, unexpected issues may arise. A common situation is when everything was working well, but suddenly the open rates of emails drop sharply, and email service providers start signaling that your newsletters are in the 'Spam' folder. What should you do in such a situation and how to get out of 'Spam'? Step #1. Checking compliance with a number of criteria First of all, you need to perform […]
We have already talked about Tarantool Cartridge, which allows you to develop distributed applications and package them. There’s just one thing left to do: learn how to deploy these applications and manage them. Don't worry, we have everything covered! We have gathered all the best practices for working with Tarantool Cartridge and written an Ansible role that will deploy the package on servers, start the instances, connect them into a cluster, and configure […]
The release of Proxmox Virtual Environment 6.1 has taken place, a specialized Linux distribution based on Debian GNU/Linux, aimed at deploying and managing virtual servers using LXC and KVM, and capable of serving as a replacement for products like VMware vSphere, Microsoft Hyper-V, and Citrix XenServer. The size of the installation ISO image is 776 MB. Proxmox VE provides tools for deploying a fully ready virtual system […]
Today we will discuss the principles and models of GitOps, as well as how these models are implemented on the OpenShift platform. An interactive guide on this topic is available at the link. In brief, GitOps is a set of practical methods for using Git pull requests to manage infrastructure and application configurations. Within GitOps, the Git repository is viewed as a single source of information […]
In this article, we will try our hand at reverse engineering, so to speak. We will take a peek under the hood of each web server with our dirty hands, exploiting them in ways no one ever would. This test is a measurement of a spherical horse in a vacuum, nothing more than the data gathered, and now we don't know what to do with it. Methodology in […]
How often do we see 'news from the future' in the media, proudly announcing the planned successes of science for the benefit of the country's economy? Often, in the comments to such announcements and reports, we can find skepticism and calls to write only about events that have already occurred. We have little faith in bright and inspiring plans. Well, the domestic information space is not unique in this kind of publication. […]
Usually, we write in our blogs about the features of various complex technologies or share insights about what we are working on ourselves. But today we want to offer you something special. In the summer of 2019, renowned science fiction author Sergey Zhigarev wrote two stories for the literary project Selectel and RBC, but only one made it to the final edit. The second one […]
A major update of the digital audio workstation Reaper 6 has been released, developed by Cockos, currently consisting of one person. The previous release was notable for the launch of the program’s build for Linux, and the new release continues to explore the Linux-based platform market. Builds are provided in tarballs, accompanied by installation scripts and are independent of distribution-specific package formats. Installation images have been prepared for platforms […]
An attack technique (CVE-2019-14899) has been published, allowing packets in TCP connections passed through VPN tunnels to be spoofed, altered, or substituted. The issue affects Linux, FreeBSD, OpenBSD, Android, macOS, iOS, and other Unix-like systems. Linux supports the rp_filter (reverse path filtering) mechanism for IPv4, the activation of which in 'Strict' mode neutralizes this issue. This method allows packet substitution at the TCP connection level, occurring within encrypted […]