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!
92 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.
36 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!
32 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!
29 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.
28 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.
24 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!
17 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
Debugging complex codebases can be one of the most challenging tasks in software development, especially when you're trying to pinpoint exactly where a bug was introduced. Git Bisect is an essential tool that simplifies this task by using a binary search algorithm to identify the problematic commit.
Boost your Linux system for low-latency performance! These kernel tweaks prioritize real-time tasks, reduce scheduling overhead, and keep timers stable—perfect for smoother gaming, audio, and benchmarking.
On Ubuntu 24.04 with Wayland, starting Dropbox suddenly made every tray icon appear twice. What looked like a small cosmetic glitch turned into a long debugging journey through GNOME extensions, scripts, and terminal tricks—until one hidden setting finally solved it.
This manual shows how to fully automate Cyberpunk 2077 benchmarking on Linux using Proton and Bash. Run dozens of test configurations automatically, collect reproducible FPS data, and generate ready-to-publish reports—no manual interaction required.
Integrating Jenkins with AWS provides a powerful combination for automating the deployment of cloud-native applications. Jenkins, a popular CI and CD tool, can be used to build, test, and deploy applications to AWS. Automating these deployments can accelerate software delivery.
In the world of containerization, optimizing the size of Docker images is crucial for improving application performance, reducing deployment times, and minimizing storage costs. One of the most effective techniques for achieving smaller images is the use of multi-stage builds.
AppArmor and SELinux are tools used to harden the security posture of Linux distributions. These tools, known as Linux Security Modules, provide mechanisms for restricting what programs and processes can do on a system, thereby adding a layer of security.
Debugging issues in a large codebase can be challenging, especially when you need to identify which specific commit introduced a bug. If you have hundreds or even thousands of commits in your Git history, manually checking each one to locate the problematic change is time-consuming and error-prone.
What should have been a simple benchmark turned into a deep investigation. The native Linux version obeyed every parameter, but Proton didn’t. Logs confirmed everything was correct—yet the game ignored the command. This is the story of chasing a single parameter that refused to work.
Switching Docker to rootless mode enhances security by running containers without root privileges. In this post, I’ll walk you through the setup, key benefits, and considerations to help you adopt a safer Docker environment.
Want smoother gameplay on Linux in minutes? These six tweaks from CPU governor and GRUB parameters to SSD scheduler and GPU power mode, can reduce frame-time variance by up to 15%, making games feel faster, more stable, and more responsive.
Jenkins can dynamically provision build agents using Docker Cloud, ensuring clean, isolated environments for every build. Learn how to configure Jenkins to spin up Docker containers as agents, connect the Docker socket, and streamline your CI/CD pipelines.