Blog Section
Today's video lesson on Distance Vector and Link State routing protocols precedes one of the most important topics in the CCNA course – the OSPF and EIGRP routing protocols. This topic will take 4 or even 6 upcoming video lessons. Therefore, today I will briefly discuss several concepts that need to be understood before starting to study OSPF and EIGRP. In the last lesson, we […]
Inspired by the article "Categories Instead of Directories, or a Semantic File System for Linux Vitis", I decided to create my own analog of the vitis utility for PowerShell Core. Why did I start this? First, vitis is only for Linux. Second, I want to use "pipes" in PowerShell. As I wanted to create a cross-platform utility, I chose .Net Core. Backstory: It all started with chaos. […]
Today, the developers announced that they are shortening the release preparation cycle. Starting in 2020, the next stable version of Firefox will be released every 4 weeks. For the past few years, Firefox development has looked approximately like this: Nightly 93 (development of new features) Developer Edition 92 (evaluation of new features' readiness) Beta 91 (bug fixing) Current Release 90 (critical bug fixes until the next […]
Nine months after the formation of the last significant branch, Oracle has released the first beta of the VirtualBox 6.1 virtualization system. Key improvements include: Support for hardware mechanisms introduced in the fifth generation Intel Core i (Broadwell) processors for nested virtualization; The old 3D graphics support method based on the VBoxVGA driver has been removed. For 3D, the new VBoxSVGA drivers are recommended […]
Firefox developers have announced a reduction in the release preparation cycle for new browser versions to four weeks (previously, releases were prepared in 6-8 weeks). Firefox 70 will be released according to the old schedule on October 22, followed by the release of Firefox 71 six weeks later on December 3, after which subsequent releases will be formed every four weeks (January 7, February 11, March 10 […]
Good day, dear readers. I will be brief and break the article into points. Organizational Issues The number of users of the AutoCAD software exceeds the number of local network licenses. The number of specialists working with AutoCAD software is not regulated by any internal document. Based on point #1, refusing to install the program is nearly impossible. Poor organization of work leads to a shortage of licenses, which results in […]
Hello, Habr. This is the second article in the ssh-chat series. What we will do: Add the ability to create custom formatting functions, Add markdown support, Add bot support, Increase password security (hash and salt). Unfortunately, there will be no file sending feature. Custom formatting functions: Currently, the following formatting functions are implemented: @color @bold @underline @hex @box. However, we should add the ability to create […]
Continuation of the article “Attempt to create an ASH analog for PostgreSQL.” The article will examine and demonstrate, through specific queries and examples, what useful information can be derived from the pg_stat_activity view history. Warning: Due to the novelty of the topic and the ongoing testing period, the article may contain mistakes. Criticism and comments are welcome and expected. Input data […]
Messaging applications share a similar set of features, making it difficult for many of them to attract widespread attention. Currently, a few major players dominate the market, such as WhatsApp, Telegram, and Facebook Messenger. Developers of other applications in this category must seek ways to encourage people to use their products. One such […]
The release of the desktop-oriented distribution GhostBSD 19.09 has been presented, built on TrueOS and offering the MATE user environment. By default, GhostBSD uses the OpenRC initialization system and the ZFS file system. Both live mode operation and installation on a hard drive are supported (using its own installer ginstall, written in Python). Boot images are created for the amd64 architecture (2.5 GB). In […]
Continuation of the translation of a small book: 'Understanding Message Brokers', author: Jakub Korab, publisher: O’Reilly Media, Inc., publication date: June 2017, ISBN: 9781492049296. Previous translated part: Understanding message brokers. Exploring the mechanics of message exchange via ActiveMQ and Kafka. Chapter 1: Introduction. CHAPTER 3 Kafka. Kafka was developed at LinkedIn to overcome some limitations of traditional message brokers and […]
What happens if you run an intermediate Tor node on your IP address and how long it takes to 'clean' from it afterward. Since the caring Federal Service for Supervision of Communications has started protecting us from unfavorable information, various means to bypass this 'care' have been used. Primarily the Tor browser, but visiting trackers can be somewhat inconvenient — every time you need to enter a password, in […]