Building a Linux Container using Namespaces :: Part - 1 Overview Ever wondered how Linux Containers worked ??? Currently, Docker is one of the most popular and prevalent container implementations. Containers run on top of the same Operating System kernel, but isolate the application processes running inside them from one another. One of the secret sauces behind containers is Namespaces. A Namespace abstracts global system resources, such as, host names, user IDs, group IDs, process IDs, network ...