How to Use Iptableshugodutka.com 13 pointshugodutka2 years ago2 commentsSaveHideCopy link On HNComments−viraptor2yFor a full, visual explanation, I'd recommend checking https://stuffphilwrites.com/2014/09/iptables-processing-flow... to see the flowchart for multiple scenarios.−whoami_nr2yOh my god. This brings back a ton of memories. I was writing a port knocking implementation back in 2016 or so as a side project and I was using this exact flowchart to use iptables for opening/closing ports and routing packets.
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For a full, visual explanation, I'd recommend checking https://stuffphilwrites.com/2014/09/iptables-processing-flow... to see the flowchart for multiple scenarios.
Oh my god. This brings back a ton of memories. I was writing a port knocking implementation back in 2016 or so as a side project and I was using this exact flowchart to use iptables for opening/closing ports and routing packets.