DevOps, Linux, Life, the Universe, and everything—thoughts and stories from Pavel Dolinin. Don’t forget your towel!
The command-line universe awaits! In this tag, we dive into the world of Linux, the open-source operating system that powers everything from your servers to your smart fridge. Whether you're tweaking configs, mastering Bash, or unleashing the power of the terminal, you’ll find tips, tricks, and tutorials to become a Linux guru. Embrace the penguin, and let’s hack the planet—one terminal command at a time!
83 posts
Git is one of the most popular and widely used version control systems today. Whether you’re a developer or DevOps engineer, Git is an essential tool for managing code, collaboration, and automation workflows. This guide will walk you through the process of installing Git on different operating systems: Windows, macOS, and Linux.
30 posts
The magic behind containers! In this tag, we'll explore Docker, the containerization tool that’s changing how we build, ship, and run applications. Whether you’re managing microservices or optimizing your builds, this is your go-to spot for Docker tips, tutorials, and deep dives. From beginner-friendly guides to advanced tricks, you'll learn to containerize like a pro!
27 posts
In the world of automation, Jenkins is the unsung hero wearing a cape made of plugins. Under this tag, you'll uncover the secrets of continuous integration and delivery pipelines, sprinkled with some DevOps wizardry. From setting up your first Jenkins job to orchestrating multi-stage pipelines, it's all about making automation less of a headache and more of a superpower. Prepare for a deep dive into the automation multiverse — where builds run smoothly, and deployment anxiety fades!
25 posts
Explore the world of hardware, from cutting-edge devices and components to the systems that power our digital lives. Whether it's server hardware, networking gear, or the latest gadgets, this tag covers the innovations and tools that make modern computing possible. Learn how hardware impacts performance, scalability, and reliability in tech, and discover tips for optimizing your infrastructure.
24 posts
Welcome to my “Gaming on Linux” corner — where penguins meet pixels and GPUs work overtime just to prove Linux can game. From nostalgic classics to modern shooters, I test, tweak, and sometimes overheat my poor GPU — all in the name of smooth frames, open-source glory, and a bit of chaos.
20 posts
This is the hub for my personal projects, community contributions, and the tools I’ve crafted along the way. Whether it's open-source code, custom-built utilities, or anything else I’m tinkering with, you’ll find it here. Expect a mix of tech experiments, shared solutions, and the occasional wild idea — all aimed at making life (and code) a little smoother. Think of it as my digital workshop, where I offer back to the community!
16 posts
Welcome to the How-tos section! Here you'll find detailed step-by-step instructions on a variety of topics, from setting up services to generating code snippets and troubleshooting issues. These guides are designed to be practical and easy to follow, whether you're a beginner or an advanced user, helping you perform tasks efficiently and with confidence.
16 posts
Because life, much like debugging code, can be absurdly unpredictable. Here, I’ll share tales of misadventures, quirky observations, and those moments where the only logical reaction is a good laugh. Whether it's the frustrations of tech or the everyday quirks of life, this is where we embrace the absurdity. After all, laughter might just be the ultimate fix—better than turning it off and on again.
10 posts
Jenkins is a highly extensible automation server, largely due to its vast ecosystem of plugins. However, managing plugins manually—especially in larger Jenkins instances—can become time-consuming and error-prone. Automating Jenkins plugin installation and configuration
Kubernetes is the de facto standard for container orchestration. It provides a powerful platform to manage containers, ensuring that your applications are running consistently, are easily scalable, and can handle failures. One of the key components of working with Kubernetes is kubectl.
As containerization continues to dominate modern software development, learning how to manage containers is becoming an essential skill. Kubernetes, a container orchestration platform, makes it easier to deploy, manage, and scale containerized applications across a distributed infrastructure.
Keeping your Ubuntu system updated is an essential aspect of system administration to ensure security, stability, and access to the latest features. Regularly updating your system helps patch vulnerabilities, enhance performance, and keep your software current.
Git hooks are a powerful feature that allows you to automate tasks during the lifecycle of a Git repository. Hooks are scripts that are triggered by specific Git events, such as making a commit or pushing code. They enable you to enforce coding standards, run tests, and other automated task
In this post, we’re going to explore the grub.sh script, which is designed to handle the configuration and hardening of GRUB across various Linux distributions. We’ll go over each line of the script to understand what it does and how it contributes to the overall configuration.
CI/CD are crucial practices in modern software development, allowing teams to deliver high-quality software quickly and reliably. Docker, with its containerization capabilities, has become an essential tool in these processes, particularly when integrated with Jenkins
Containerization has revolutionized the way software is developed, deployed, and managed. At the forefront of this transformation are two key technologies: Docker and Kubernetes. While both of these technologies are essential to containerized environments.
One of the most powerful and frequently used features in Linux-based systems is the ability to schedule tasks to run automatically at specific intervals. This is typically achieved using cron jobs, which allow system administrators and users to automate repetitive tasks.
Git is a powerful version control system built on four core objects: commits, blobs, trees, and tags. These objects are fundamental to Git’s storage model, and understanding them provides valuable insights into how Git operates.
Don’t panic. This post kicks off a hands-on series about building an 8-node Raspberry Pi cluster from scratch. We’ll explore what a Raspberry Pi is, compare models, choose the right hardware, and lay the foundation for a tiny but serious lab.
The sshd.sh script is crafted to automate the configuration of sshd settings, applying essential security options, checking for user privileges, and streamlining the SSH setup for administrators. The sshd.sh script available in my Git Hub repository.