containers Archives

Networking tutorial - IT technology blog

Linux Network Namespaces: How Container Networking Actually Works

May 11, 2026

Learn how Linux Network Namespaces provide the foundation for Docker and Kubernetes networking. This hands-on guide covers building virtual networks, veth pairs, and bridges from scratch.

Networking

Bypassing the Bridge: Why We Switched to Macvlan and Ipvlan in Production

May 10, 2026

Is the Docker bridge slowing you down? See how we used Macvlan and Ipvlan to connect containers directly to our physical network, cutting CPU overhead and reducing latency in our VOIP and streaming clusters.

Linux

Stop Over-Engineering Your Test Labs: A Guide to Systemd-nspawn

May 6, 2026

Ditch the heavy overhead of Docker for your local testing. This guide shows you how to master systemd-nspawn for lightning-fast, isolated Linux environments.

Linux

Ditch the VM Weight: High-Performance Container Management with LXC/LXD

April 5, 2026

Is your server choking on virtual machine overhead? Discover how LXC/LXD system containers provide the isolation of a VM with the blazing speed of a native process.

DevOps

How to Write an Efficient Dockerfile: Tips from Real-World Experience

March 9, 2026

Writing an efficient Dockerfile goes beyond just making it work — it directly impacts build speed, image size, and production security. This guide covers the practical tips I use daily: multi-stage builds, layer caching, minimal base images, and common mistakes to avoid.

DevOps

Docker Compose: Manage Multi-Container Applications Without Losing Your Mind

March 7, 2026

Managing multi-container applications with individual docker run commands breaks down fast. Docker Compose solves the orchestration problem with a single YAML file — handling networking, startup order, and environment configuration. Here's how we use it in production.

DevOps

Docker for Beginners: From Install to Running Your First Container

March 7, 2026

Docker solves the classic "works on my machine" problem by packaging your app and its entire environment into a portable container. This guide walks you through installing Docker, understanding core concepts, building your first custom image, and practical tips for real-world usage.

DevOps

Kubernetes Basics: Pod, Service, and Deployment Explained with Real Examples

March 7, 2026

Kubernetes solves the problem of running containers reliably at scale. This guide breaks down the three core building blocks — Pod, Service, and Deployment — with practical YAML examples and hands-on commands to deploy and manage a real application.