// Topic

Servers and infrastructure

VPS, Linux, web stack, migrations, hosting, databases, and core operations.

Typical tasks

  • Move a site or service to a new server
  • Set up Linux, Nginx, databases, and backups
  • Figure out why the system behaves unstably

// Materials on this topic

Articles and breakdowns

42 articles

2025-11-04

Yocto Project: assemble your own Linux like LEGO bricks

Yocto — this is not a distribution. It’s a tool from which you build your Linux. Like Lego, only for engineers. 🔧 Who needs Yocto Developing medical or industrial devices Require a 10-year support lifecycle Want a …

2025-11-01

OpenWRT: turning an old router into a powerhouse

Imagine: an old router for 2000 ₽ blocks ads, shares a VPN, works as a Mesh system and doesn’t slow down even with 50 devices. This is not magic — this is OpenWRT. 🏠 Who needs OpenWRT OpenWRT turns an ordinary router …

2025-10-28

MySQL Proxy: A Database Intermediary 🛠️

MySQL Proxy is a proxy application that sits between client applications (for example, your web server) and one or more MySQL servers. It uses the MySQL Network Protocol, which allows any standard MySQL-compatible client …

2025-09-29

112 | Rsync — Efficient File Synchronization

Introduction In previous articles, we explored different file transfer protocols — from classic FTP and SFTP to modern solutions like S3 and WebDAV. Now let’s take a closer look at Rsync — a powerful tool and protocol …

2025-08-26

093 | OpenVPN Setup: Explaining the Basics

VPN: Not Just an “On” Button For many users, a VPN is simply an “On” button. However, when it comes to building your own secure tunnel, it’s important to understand its architecture. OpenVPN is …

2025-08-12

080 | Classic Brute-Force Protection: Fail2ban

Introduction: Server Security — The First Line of Defense Once you deploy any server or virtual machine, one of the first and most important tasks is ensuring its security. Even if your server doesn’t contain critical …

2025-08-10

078 | Xen: A Flexible Hypervisor for Complex Tasks

What is Xen? Xen is a powerful and flexible Type 1 open-source hypervisor that runs directly on server hardware, delivering high performance. Its unique architecture, based on the concept of paravirtualization, became …

2025-08-09

077 | QEMU: A Flexible Emulator and Hypervisor

What is QEMU? QEMU (Quick Emulator) is a multifunctional open-source project that acts both as an emulator and a virtualizer, making it a unique tool in the virtualization world. Unlike other hypervisors, QEMU not only …

2025-08-08

076 | KVM: Powerful Virtualization for Linux

What is KVM? KVM (Kernel-based Virtual Machine) is a virtualization technology built directly into the Linux kernel. KVM transforms the Linux kernel into a Type 1 hypervisor (bare-metal), allowing multiple virtual …

2025-07-08

046 | cPanel: The Global Standard for Shared Hosting

Introduction to cPanel If you’ve ever purchased shared hosting, chances are high that you’ve encountered cPanel. It is arguably the most well-known and widely used web hosting control panel in the world. Designed for a …

2025-07-04

042 | Website Control Panels: Your Key to Easy Hosting

Introduction: Why Do You Need a Website Control Panel? Imagine you’ve bought a piece of land and built a house on it (your website). Now you need to manage the house: connect electricity (domains), install plumbing …