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this post was submitted on 23 Apr 2024
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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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Interesting opinion, I've always heard that unattended upgrades were a terrible option for servers because it might randomly break your system or reboot when an important service is running.
Both my Debian 12 servers run with unattended upgrades. I've never had anything break from the changes in packages, I think. I tend to use docker and on one even lxc containers (proxmox), but the lxc containers also have unattended upgrades running.
Do you just update your stuff manually or do you not update at all? I'm subscribed to the Debian security mailing list, and they frequently find something that means people should upgrade, recently something with the glibc.
Debian especially is focused on being very stable, so updating should never break anything that wasn't broken before. Sometimes docker containers don't like to restart so they refuse, but then I did something stupid.
I used to check the cockpit web interface every once in a while, but I've tried to enable unattended updates today. It doesn't actually seem to work, but I planned on switching to Nix anyway.
I don't use Cockpit, I just followed the Debian wiki guide to enabling unattended upgrades. As fast as I remember you have to apt install something and change a few lines in the config file.
It's also good to have SMTP set up, so your server will notify you when something happens, you can configure what exactly.
There are two schools of thought here. The "never risk anything that could potentially break something" school and the "make stuff robust enough that it will deal with broken states". Usually the former doesn't work so well once something actually breaks.