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Firewalls: what SHOULD I block?
(lemmy.wtf)
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this post was submitted on 27 Sep 2024
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I would advise that you ignore a lot if the advise here and do your own research. You probably don't need a local Firewall and if you want to block content use DNS and browser extensions
If the computer never leaves the house, maybe. If it's ever on public Wi-Fi though, default deny inbound at a bare minimum. Linux computers with cups installed and running but no firewall were revealed yesterday to be vulnerable to RCE.
Cups only listens on local host only by default. Also it requires you to connect to a printer which is unaffected by the Firewall.