this post was submitted on 25 Jul 2023
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Linux
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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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100% sure its Debian.
Mission critical server mostly are RHEL or EL Clone or Fedora or it's derivative... If you combine even Azure nowdays, Microsoft Linux is derived from Fedora, same as Amazon Linux, and others... Debian are covering some part, but mostly hobbyist, or SME, and mostly non critical, as they don't have standard across, even on their https://wiki.debian.org/LTS/Extended and https://www.debian.org/consultants/
apt also bad when you got to dowgrade package when something mess up, and get messy with dpkg.. :'(
So I quite doubt if it's production env, mostly go with EL. I do know some company use Ubuntu/Debian, but it's quite few...
If Ubuntu/Debian want to shape Industries, and kick out RHEL, they need to have standard, and better consultancy than RHEL. I hope so that they could grow and make market competitive, but for now it isn't sadly.
Debian needs to focus more on automation if they want more penetration in the enterprise. Debian feels made for human admins logging in and managing things old school style which is fine for a few machines. Modern enterprises use Ansible etc and need highly functional non-interactive ways to install and configure etc. Preseed and Apt leave something to be desired here.
What has automation to do with a distro? You can automate any distro. Ansible runs on any linux.
A distro can make automation more difficult than it needs to be. As I mentioned in my examples, Preseed sucks, have you ever used it? And of course Ansible works on pretty much any distro, but Debian family distros are made with the expectation of user input, such as expecting configuration values during package installation and this has to be worked around. It's not impossible, just more work and testing. When you're automating CentOS and Ubuntu next to each other, you'll realize extra Ubuntu related code.
Not a big deal, it's just minor preferences.