GUI for iptables?

Firestarter has always worked well in my opinion. It supports a robust GUI and supports all options of iptables.

status events

sudo apt-get install firestarter

I've never taken time to understand iptables, but I believe gufw does the job. Even I was able to set up a firewall within a couple of minutes.

Try Firewall Builder.

sudo apt-get install fwbuilder

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