this post was submitted on 25 Jul 2023
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I've come across Red Hat allot lately and am wondering if I need to get studying. I'm an avid Ubuntu server user but don't want to get stuck only knowing one distro. What is the way to go if i want to know as much as I can for use in real world situations.

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[–] BadRS@lemmy.world 2 points 2 years ago

I always use Ubuntu Server. It was my first distro 20 years ago and it's still where I'm most comfortable.

[–] garam@lemmy.my.id 2 points 2 years ago

Mostly mission critical server that I deployed in the past, all use RHEL/Clones because their LTS, and stability across packages version.

If for hobbyist, it's Ubuntu. I think you need to learn more about ansible, container/podman/openshift, and SDN for work. Nowdays, there are some use APT in production, but mostly they switch to dnf because dnf have better way to do downgrade, undo, redo, and config package in production.

This applied mostly for ERP project such as SAP Hanna, SQL Server, DB2, etc... Like it not, Red Hat Dwindling isn't now, probably 5-10 years ahead, but I'm not sure, as mostly rant about RHEL are in Community. I do know regional linux user group in Indonesia, some are leaving EL group, but they still can't rip apart most mission critical server on top of RHEL/Clones... so it's still worth learning RHEL/Clones, and use Fedora for day 2 day task, and learn ubuntu, as well ubuntu pro, for learn deploying critical production server.

Debian and Ubuntu are near, and ubuntu is derived from debian, but if you talk spirit, they are different... If you are conscious about what Red Hat do, stay away from it, but if you are working in corporate, you can't go without learning it.

[–] enfluensa@ttrpg.network 2 points 2 years ago (1 children)

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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[–] agilob@programming.dev 2 points 2 years ago

Most likely debian or debian-distroless

[–] biscuits@lemmy.sdfeu.org 2 points 2 years ago

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.

[–] ulu_mulu@lemmy.world 2 points 2 years ago

I work for a big enterprise, we have RHEL on all our Linux servers save for a few that are SuSe for SAP.

[–] lemmy@lemmy.stonansh.org 1 points 2 years ago (1 children)

So what are the biggest differences. Or is it mostly the same? Also thanks for the responses!

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My experience in my career has been all RHEL/CentOS. The meat of Linux admin isn't going to hugely change between most distros tho. Different package mgmt, how the network is configured, etc... Spin up an VM, install it from scratch, and just learn those differences.

[–] elvis_depresley@sh.itjust.works 1 points 2 years ago

anyone using nixOS?

[–] NixDev@programming.dev 1 points 2 years ago

Mostly cost. We used to run a lot of Oracle databases and they have become extremely expensive to keep running. So we are migrating to PostgreSQL. The servers were getting migrated to CentOS but now that RedHat fucked that distro we are going back to RedHat. Part of that deal is switching from chef to Ansible. So to save costs we are consolidating to a single vendor.

[–] kylostillreigns@lemmy.world 1 points 2 years ago

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.

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