Ubuntu is the modern, open source operating system on Linux for the enterprise server, desktop, cloud, and IoT.
The CentOS Project
Modernize your infrastructure with SUSE Linux Enterprise servers, cloud technology for IaaS, and SUSE's software-defined storage.
MSDN, 我告诉你 - 做一个安静的工具站
Red Hat is the world’s leading provider of enterprise open source solutions, including high-performing Linux, cloud, container, and Kubernetes technologies.