Almost always use Ubuntu in production. Also a bit of Centos at one point.
this post was submitted on 25 Jul 2023
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I work at a big company: most of our customers are using RHEL when they use Linux. There are some customers that use SUSE for SAP workloads, but these are about 10% of all linux VMs.
Started with RHEL years ago, migrated to CentOS to get away from the license fees etc. Have since moved to Amazon Linux since we subsequently migrated everything to AWS.
So what are the biggest differences. Or is it mostly the same? Also thanks for the responses!
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I was working as a DWDM technician sometime ago and IIRC most of DWDM hardware (or at least the Infinera ones, as I had used those the most) were actually running on Gentoo, which was kinda surprising for me.
But in "regular" environments I have mainly seen Ubuntu or Debian.
For learning system administration, I think Cent OS Stream can be a great choice. Not because it offers something special than others but because it would familiarize you with the RHEL/Fedora family and in my experience majority of enterprise-servers are using one of its family members, be it RHEL, the former CentOS, Oracle Linux, Amazon Linux or some other variant.
I always use Ubuntu Server. It was my first distro 20 years ago and it's still where I'm most comfortable.
My current job is all Ubuntu LTS, my job before that was all CentOS, and my job before that was a mixture of Debian and FreeBSD.
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I work for a big enterprise, we have RHEL on all our Linux servers save for a few that are SuSe for SAP.
I'm seeing a lot of very interesting answers but I'm wondering what you mean by "production environment".
Do you mean VFX Production? (English not my first language so if "production" is used in different industries, well, I didn't know).
I'm new to the industry and worked for small companies that don't use Linux. But my VFX peeps use Rocky, Mint, and Ubuntu ( stronger preference for Rocky in studios).
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I think Ubuntu is the most popular distro in the cloud, at least based on cloud provider metrics. Dockerhub shows like 30 million downloads a week for it regularly, which is a lot compared to most images. Debian would be good to learn as that's what Ubuntu is based on and all the major software with will probably target it. Alpine is good to learn as it's super slim, tends to be used for containers a lot.
At work: Alpine-based docker containers. Flatcar Container Linux for host VMs.
Personally: Ubuntu Server. Some alpine docker containers.
anyone using nixOS?
For production server? No. mostly NixOS is for desktop.
Ansible cover what nixOS doesn't in Debian/RHEL space, and it's idempotent and better than nixOS config. Unless they change their approach for server, I don't see any way in near future it will be massively adopted.