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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Noob Question Thread: Ask Any Questions About Linux! (lemmy.ml)

submitted 2 weeks ago by [email protected] to c/[email protected]

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Ever had a question about Linux but felt too afraid to ask? Well now's your chance, ask any question about Linux, no matter how noob or repeated it is, and I and others will help answer them.

Previous noob question thread: https://lemmy.ml/post/14261893

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[–] [email protected] 2 points 2 weeks ago (5 children)

I have a server that has multiple services running under multiple users that each store data. I want to be able to bundle all this data up and send it to another server for backups.

At a high level, how do I manage permissions for this? Currently I run the backup as root, then chown it to a special backups user which can log in through ssh. But this all feels clunky to me.

[–] [email protected] 1 points 1 week ago

            
              Make a snapshot with LVM2 or BTRFS to ensure consistency, delete the snapshot after backing up.
You can back up files as root (I do) or a dedicated user that has perms to all the relevant data via groups.
Rsync can preserve users either numerically or by name.
Rsync can do incremental backups via hardlinks (you'll have a complete view of all files in each snapshot, but only pay the storage when files actually change).

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