How to Install Docker on Ubuntu 24.04 (Official Repository)
Install the latest Docker Engine and Compose on Ubuntu 24.04 from the official repository, with post-install steps, log limits and security notes.
Category: Docker
Docker Cheat Sheet: Essential Commands and Troubleshooting
The Docker commands you use every day: run, logs, exec, build, volumes, cleanup, plus how to fix containers that exit or are unreachable.
Docker Compose Tutorial: Run a Multi-Container App
Learn Docker Compose with a real example: a web service and MariaDB with volumes, healthchecks, .env secrets, updates and backups.
Docker and UFW: Why Published Ports Bypass Your Firewall
Docker ignores UFW rules for published ports. Learn why it happens and how to fix it with localhost binding, DOCKER-USER rules and provider firewalls.