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Oleksii Volochniuk

Oleksii Volochniuk

Author

Oleksii Volochniuk is a Chief Technology Officer with over 20 years of experience in the IT industry. Throughout his career, he has been involved in building, maintaining, and improving complex technical systems across a wide range of environments and infrastructures.

His expertise spans long-term operational stability, system reliability, and the practical application of DevOps principles. Oleksii focuses on creating resilient, scalable solutions and ensuring that infrastructure evolves in line with business and technical demands.

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Articles by this author

  • What Is a GPU Server and Why It Is Needed for AI
    • January 30, 2026
    • 10 min read

    What Is a GPU Server and Why It Is Needed for AI

    If you want to understand what is a GPU server, why the industry depends on it and how companies build scalable systems for their models, you are in the right place.

    Oleksii Volochniuk Oleksii Volochniuk
  • How to Install Node.js on Ubuntu 22.04 Using NVM
    • January 8, 2026
    • 15 min read

    How to Install Node.js on Ubuntu 22.04 Using NVM

    This guide shows you how to install Node on Ubuntu 22.04 using NVM (Node Version Manager), a powerful tool for managing multiple Node.js versions. With NVM, you can easily switch between versions, keeping your development environment flexible.

    Oleksii Volochniuk Oleksii Volochniuk
  • How GPU Memory Works and Why It Is So Expensive
    • December 22, 2025
    • 10 min read

    How GPU Memory Works and Why It Is So Expensive

    This article explains the inner mechanics of GPU memory, the reasons behind its high price and why it has become one of the most valuable resources in the entire AI industry.

    Oleksii Volochniuk Oleksii Volochniuk
  • Convert String to Float in Python (Python String to Float)
    • November 4, 2025
    • 5 min read

    Convert String to Float in Python (Python String to Float)

    In Python, type conversion functions allow us to change one data type into another. This article focuses on converting a string into a floating-point number.

    Oleksii Volochniuk Oleksii Volochniuk
  • How to install Docker on Ubuntu 22.04?
    • October 12, 2025
    • 9 min read

    How to install Docker on Ubuntu 22.04?

    This step-by-step tutorial will guide you on how to install Docker on Ubuntu 22.04, as well as how you can manage Docker containers and images.

    Oleksii Volochniuk Oleksii Volochniuk
  • HTTPS Port 443 and 8443: The Complete Security Guide for Web Communication
    • August 20, 2025
    • 14 min read

    HTTPS Port 443 and 8443: The Complete Security Guide for Web Communication

    This comprehensive guide explores the intricacies of secure communication protocols, HTTPS port configurations, security protocols, implementation strategies.

    Oleksii Volochniuk Oleksii Volochniuk
  • How to Configure Mac Remote Desktop to Windows (Step-By-Step Guide)
    • August 12, 2025
    • 3 min read

    How to Configure Mac Remote Desktop to Windows (Step-By-Step Guide)

    Learn how to seamlessly configure Mac Remote Desktop to Windows with our comprehensive step-by-step guide. Maximize efficiency and productivity by mastering the setup process effortlessly.

    Oleksii Volochniuk Oleksii Volochniuk
  • Dedicated Servers vs Bare Metal Cloud
    • July 4, 2025
    • 6 min read

    Dedicated Servers vs Bare Metal Cloud

    We all know that Cloud hosting is getting more and more popular, but people still rely on the good old dedicated servers. Let’s compare them and see why this competition will stay for at least the next 10-20 years.

    Oleksii Volochniuk Oleksii Volochniuk
  • How To Restart SSH Service? (Linux Restart SSHD Server)
    • June 12, 2025
    • 5 min read

    How To Restart SSH Service? (Linux Restart SSHD Server)

    SSH, short for Secure Shell, is the most commonly used network protocol facilitating secure communication between computers over potentially insecure networks.

    Oleksii Volochniuk Oleksii Volochniuk