this post was submitted on 25 Jul 2023
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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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Support contracts for risk mitigation is a big part of it, and the other is RH release engineering is amazing.
Aside from that, RHEL, and clones, is a very straight forward, clean distro. It’s very focused with everything doted and tidy, and overall, it has a very uncomplicated feel to it. In contrast Debian derivatives are kind of messy, and SUSE tries to stuff every function into a single application.
RHEL does push a lot of technology. Out of the stable distros, it will be the first to put tech into production. RH does a lot with integration with other systems. This has kept me off of SUSE in the past. RHEL was more tech forward, comparatively.
dnf downgrade
dnf history undo
dnf history redo
it's very very very critical for most case :')
you can just snapshot before any transaction in apt / pacman / whatever else.
It's hard, and better have package manager built in. It's not enough in the enterprise sadly... Just saying, and I think most Corporate with agree with it.
the package manager will have it built in with a simple hook. works great with unattended upgrades.