this post was submitted on 29 May 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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@merompetehla UFW and firewalld provide a higher level of control, which means that they are quicker to learn, easier for simple tasks but harder to use in more granular levels. Their setup is translated into iptables rules at the end. With Iptables or its successor Nftables, you'll need to invest a bit more time to learn but have a more granular level of control at the end. I hope this helps.
You could use it together with opensnitch