Linux configuration files are the heart of the Linux operating system. These files are one of the biggest differences between the Linux and Windows operating systems. The Windows OS does use per-application configuration files as well, but Windows largely depends on something called the Registry. The Registry is an ultra-fast database that stores configurations for the Windows OS and its applications.

DigitalOcean

DigitalOcean provides a variety of images that you can use to create Droplets and Kubernetes clusters, like Linux and FreeBSD distributions, container distributions, 1-Click Applications, and a container image registry. In addition, you can take snapshots for on-demand disk images of Droplets and volumes, enable backups for automatic weekly Droplet images, and upload custom images to create Droplets with other operating systems or pre-packaged libraries. You can manage the images you create or upload to your account in the Images section of the control panel.