Hi all,
i want to cut down incoming connections, but i want to accept responses from outside when establishing a connection by the server (for DNS and updating). I found this link [1] to a howto in this forum that proposes following iptables command:
I added one line to OMV by GUI with extra options: -m conntrack --ctstate ESTABLISHED,RELATED
Is that iptables command what i am looking for, or could it be a security risk?
Best regards