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Do I need a firewall for my fedora 38?
(lemmy.dbzer0.com)
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this post was submitted on 29 Sep 2023
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Even without any firewall you should be fine by default. Access to ports with no services listening do nothing. Firewalls are just defense-in-depth in case a service that you didn't want to accidentally listens on a port. It may also slightly reduce kernel attack surface.
So I would say that you don't need it. You will be fine. But if you want to be sure about what is listening on your machine then feel free to apply one.