See title for the question.
This question relates to a previous question wherein I asked the difference between NEW,ESTABLISHED and RELATED , see it here iptables: difference between NEW, ESTABLISHED and RELATED packets One of the rules has NEW in it, and I'm concerned packets will slip through because I'm accepting ssh traffic once it passes the rule. I think I need to ad ESTABLISHED to the rule as well. And maybe even RELATED if it's possible to spoof both. So that's the question. Is it possible ?