this post was submitted on 17 Mar 2026
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From Wikipedia, the free encyclopedia
Linux is a family of open source Unix-like operating systems based on the Linux kernel, an operating system kernel first released on September 17, 1991 by Linus Torvalds. Linux is typically packaged in a Linux distribution (or distro for short).
Distributions include the Linux kernel and supporting system software and libraries, many of which are provided by the GNU Project. Many Linux distributions use the word "Linux" in their name, but the Free Software Foundation uses the name GNU/Linux to emphasize the importance of GNU software, causing some controversy.
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FreeIPA (IdM on RHEL clones) is similar in some functionality (you join the domain, you allow certain users/groups can run certain commands [like controlling sudo'ers], etc.) and it's also a CA).
For configuration management I lean towards Ansible (Puppet, Salt, Chef I think all use a Ruby syntax, Ansible is YAML), and for deployment well Terraform, Kickstart and cloud-init - without knowing your environment it's difficult to be more precise. There's also Pyinfra which I've been meaning to give a whirl but not had a chance.
You've also got Keycloak if you need OIDC or SAML functionality (for SSO).