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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The default Linux image on AWS (Amazon Linux) is RPM-based; but the default image on Google Cloud currently appears to be Debian "bullseye" (the April 2023 release) with an option for "bookworm" (brand new this month). I'm not sure about Microsoft Azure but their docs suggest a Debian default as well.
So that's one impression. Knowing both
dpkg/aptandrpmwill serve you well.Major tech companies have their own internal distributions in their production datacenters, which focus much more on their specific needs. Any major tech company using Linux in datacenters will have an engineering team specifically building what they need.
That's interesting to know thanks! I do know some dpkg and apt but nothing about rpm so will learn more about that.
Agreed; I was going to comment something similar: I work with SAP (SAP's HANA database runs on SUSE). When I need a free swrver OS for anything else, I go debian (I used RH from 4.2 to 8.0 when they fooled us once, then went debian).
So being comfortable with a rpm based and a deb based system is good advice.
On the server side, when most administration is through ssh, distro differences are not as relevant as for GUI environments. Package handling is the most impacting difference (and I prefer deb), not that it's a showstopper, when you have yast and aptitude though.