Administration Section
Input data: 192.168.0.1/24 192.168.0.0 OpenVPN server: 192.168.0.1:1194 Protocol: TCP Using these settings, OVPN works: Note: works only with Blowfish encryption, without compression. Additional options in the Grandstream phone settings, don't forget about the route: client; dev tun; resolv-retry infinite; nobind; tls-client; auth SHA1; route 192.168.0.0 255.255.255.0 Source: habr.com
Hello everyone. This is Vladislav Rodin speaking. I currently teach courses on software architecture and high-load software architecture on the OTUS portal. In anticipation of the new course 'High Load Architect' starting soon, I decided to write a short original piece that I would like to share with you. Introduction Due to the fact that HDDs can only perform about 400-700 […]
Standard condition for implementing CI/CD in Kubernetes: the application must be able to stop accepting new client requests before full shutdown and, most importantly, successfully finish existing requests. Meeting this condition allows for zero downtime during deployment. However, even with very popular stacks (like NGINX and PHP-FPM), you can encounter challenges that lead to spikes […]
The previous parts of the "Introduction to SSD" series informed the reader about the history of SSD drives, the interfaces for interacting with them, and popular form factors. The fourth part will discuss data storage within the drives. In previous articles of the series: The History of HDD and SSD Creation The Emergence of Storage Interfaces Features of Form Factors Data storage in solid-state drives can be divided into two logical parts: information storage in […]
I invite you to review the transcript of Igor Strycharz's 2017 presentation "ClickHouse – visually fast and clear data analysis in Tabix." The web interface for ClickHouse in the Tabix project. Main features: Works with ClickHouse directly from the browser, without the need for additional software installation; Query editor with syntax highlighting; Command auto-completion; Tools for graphical analysis of query execution; Color schemes to choose from. I […]
The Administrative Budget Management of the U.S. President's Office has requested comments on the new guidelines for transitioning to IPv6 in U.S. government institutions. The new version of the guidelines notes that support for dual-stack creates additional operational complexities and recommends that the internal networks of government organizations transition to IPv6-only instead of dual stack. Of course, public services should maintain IPv4 addresses during the transition. The guidelines also require, […]
Hello, and first a bit of lyricism. I sometimes envy my colleagues who work remotely — it’s wonderful to have the ability to work from anywhere in the connected world, take vacations at any time, and have project and deadline responsibilities rather than being in the office from 8 to 5. My position and job responsibilities practically eliminate the possibility of being away from the data center for long. […]
When any strategically important decision is made for the company, employees go through a basic protective mechanism well-known as the 5 stages of response to change (by E. Kubler-Ross). The outstanding psychologist once described emotional reactions, highlighting 5 key stages of emotional response: denial, anger, bargaining, depression, and finally, acceptance. We have prepared a series of articles dedicated to ISO 27001 certification, where […]
This article presents key points on using power over Ethernet (PoE) in a popular Q&A format. It covers differences between standards, provides information on surge protection for devices, and discusses other useful aspects. What is PoE? PoE (Power over Ethernet) is a technology that supplies power to a client device through a twisted pair of Ethernet standards (usually […]
Hello, Habr! You might have heard that the new Windows Terminal is coming soon. We've already written about it here. Our colleague Scott Hanselman has prepared some tips on how to work with the new terminal. Join us! So, you've downloaded Windows Terminal and... what's next? At first, you might not be thrilled. After all, it's still a Terminal, and it […]
The release of version 0.9 of Windows Terminal has taken place. This is the last version of the Terminal that will include new features until the release of v1. You can download Windows Terminal from the Microsoft Store or from the releases page on GitHub. Let's take a closer look at the update details! Command Line Arguments The wt alias now supports command line arguments. You can now launch the Terminal with […]
Helmfile is a wrapper for helm that allows you to describe multiple helm releases in one place, parameterize their charts for different environments, and set order for their deployment. You can read more about helmfile and examples of its use in the README and best practices guide. We will explore less obvious ways to describe releases in helmfile. Suppose we have […]