You can select a default zone from the list and even set the default zone. Out of the box, the default zone is FedoraWorkstation, which rejects unsolicited incoming packets from ports 1 to 1024 ...
Thanks to the flexibility of Linux, it's possible to run the OS straight from a USB drive, but is that the right way to go? Let's take a look at the pros and cons.
Learn Linux Kernel internals using Linux Kernel Explorer, a free website that helps you explore the Linux kernel in a structured way.
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