this post was submitted on 14 Jul 2023
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Linux
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From Wikipedia, the free encyclopedia
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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As a Linux noob: what's Docker?
It's a containers system. It's similar to a virtual machine, you can run so-called images, which are a copy of the virtual machine that are hosted on the internet. For example, to run a mysql server:
docker run -it --name mysql -p 3306:3306 mysql:8
. This will run an interactive container (-it
) called mysql (--name mysql
) which will run the version 8 of mysql (the image name and version,mysql:8
) which will forward the port 3306 from container to the port 3306 on your host PC (-p 3306:3306
). You can have multiple containers, so for example multiple mysql versions (they can't have the same host port if they're running at the same time).