this post was submitted on 27 Sep 2024
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Leave it alone.
If you want to experiment, set up a VM and experiment there.
Also, if you want to learn about Linux firewalls, go for iptables instead. UFW is easier, yes, but you won't get the standard way of configuring a Linux firewall, though to be honest, unless you are directly connecting the computer to the internet, you probably won't need to bother.
And if you are working in an environment where you are dealing with a segmented network with limited access between segments, they will probably already use a separate firewall that is easier to manage centrally than induvidual firewalls running on individual computers
I think it's fine to start with UFW on a desktop system at home to learn the very basics and get an idea on what ports you actually need. learning iptables/nftables is useful, but not necessary for a simple user at that level
Eh, I get what you mean but I disagree.
That is sort of saying that if someone want to learn Swedish, but since they don't know any Swedish, it is better to start them on Norweigan first.
If UFW had used a similar syntax to that of iptables, then it would be a decent way of doing it, but in this example I disagree with you
nobody wants to learn Swedish here. they want to be understood in a community that knows both Swedish and Norwegian, and if Norwegian is easier, they can learn just that
then it wouldn't be Uncomplicated anymore
No one uses IPtables as a Firewall. That would be insane. Instead you set Firewall rules which then translate to IPtables under the hood