Manage Linux Containers with Docker on Ubuntu - HowtoForge
www.howtoforge.com/manage-linux-containers-with-docker-on-ubuntu
From the page
Saved with the link. Notes from 2007 to 2016 are mostly the page's own words, so this is probably an excerpt.
This guide explains how to install Docker and manage virtual machines effectively. Docker is a Open Source Linux virtualistaion platform for developers and system administrators to build, deploy, and execute distributed applications easily. Docker consists of the Docker Engine, a light runtime and virtualisation layer, tools to package and version virtual machines similar to a sourcecode repository and Docker Hub, a service in the cloud to share applications and automate workflow. Docker allows applications quickly assembled from components and eliminates friction between development environments, quality control and production.