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.
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.
Most Linux distros are more alike than different. They’ll use different package managers, have different sets of software available, have different default settings for some stuff, but at the end of the day, Linux is Linux. Once you know enough, the distro is almost meaningless in terms of what you’re capable of. You can do almost anything on any distro with the right knowledge and a bit of effort. It mostly becomes about the effort at that point.
Skills you learn on one will be 98% transferrable to another. That’s why everybody says to just get Red Hat certifications; not because Red Hat has a monopoly, but because their certification process is fantastic, respected and accepted almost anywhere regardless of what they actually run. As you’ve seen, almost every answer you got was completely different on what they actually run in production.
The only standout differences are the newish trend of immutable distros (openSUSE ALP/Aeon, Fedora Kinoite/Silver blue, etc) and NixOS, which is also immutable but its own beast entirely. These have some new considerations separate from the rest, especially NixOS. But they’re still relatively fresh on the scene, so there’s no rush to learn about them just yet.
I use Duplicacy to encrypt and backup my data to OneDrive on a schedule. If Proton ever creates a Linux client for Drive, then I’ll switch to that, but I’m not holding my breath.
Either an external hard drive or a pendrive. Just put one of those in a keychain and voila, a perfect backup solution that does not need of internet access.
Anything important I keep in my Dropbox folder, so then I have a copy on my desktop, laptop, and in the cloud.
When I turn off my desktop, I use restic to backup my Dropbox folder to a local external hard drive, and then restic runs again to back up to Wasabi which is a storage service like amazon's S3.
Same exact process for when I turn off my laptop.. except sometimes I don't have my laptop external hd plugged in so that gets skipped.
So that's three local copies, two local backups, and two remote backup storage locations. Not bad.
Changes I might make:
add another remote location
rotate local physical backup device somewhere (that seems like a lot of work)
move to next cloud or seafile instead of Dropbox
I used seafile for a long time but I couldn't keep it up so I switched to Dropbox.
I use duplicity to a drive mounted off a Pi for local, tarsnap for remote. Both are command-line tools; tarsnap charges for their servers based on exact usage. (And thanks for the reminder; I’m due for another review of exactly what parts of which drives I’m backing up.)
Question about the video. I’ve never used btrfs or Timeshift, so maybe this is just a thing with them, when he jumps to the CLI and unmounts, remounts RW, changes the @rootfs @, adds a dir and then mounts the subvolume on /dev/sda2 to /target.
This is totally new to me and I was wondering if anyone had an explanation as to why this was necessary?
I’m used to EXT4 and that’s what I run. But if BTRFS has FINALLY gotten stable and usable and I can take snapshots and roll back to older ones, kind of like branches in ostree, then maybe it’s worth this little extra work.
From what I find subvols are their own isolated branch with their own hierarchy. Is this how they’re meant to be used? Manually creating them and mounting/unmounting?
Also anyone know if JustALinuxGuy is on Fediverse/Mastodon or a way to reach them about uploading these incredibly instructive videos to Peertube such as TILVids?
Most of my data is backed up to (or just stored on) a VPS in the first instance, and then I backup the VPS to a local NAS daily using rsnapshot (the NAS is just a few old hard drives attached to a Raspberry Pi until I can get something more robust). Very occasionally I’ll back the NAS up to a separate drive. I also occasionally backup my laptop directly to a separate hard drive.
Not a particularly robust solution but it gives me some piece of mind. I would like to build a better NAS that can support RAID as I was never able to get it working with the Pi.
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